Christina Allen
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Research Summary
Dr. Allen has a special interest in meniscus transplantation, ACL Revision surgery, cartilage restoration and proximal hamstring avulsion repairs, which are focus areas for her research.
Extensive Research Description
1. AOSSM Multi-center ACL revision (MARS) study- co-investigator (2006-present)
Also member of Mars Scientific Advisory Board since 2009
This study has two general goals: 1) to evaluate the functioning of patients who undergo revision Anterior Cruciate Ligament reconstruction several years after surgery using a large-scale prospective study design and 2) to identify factors that predict patient-reported outcomes two years after ACL revision surgery.
Aim 1. To determine outcomes of patients who undergo revision ACL reconstruction.
Aim 2. To determine predictors of patient-reported symptoms and functioning two years after revision ACL reconstruction.
Aim 3. To determine risk factors/predictors of osteoarthritis for patients undergoing revision ACL reconstruction.
Aim 4. To determine predictors of level of activity at two-year follow-up for patients undergoing revision ACL reconstruction.
Aim 5. To determine risk factors/predictors of subsequent injury to the index ACL graft or the ACL in the contralateral knee.
Collaborations: Study funded by American Orthopaedic Society for Sports Medicine, Musculoskeletal Transplant Foundation and the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Surgical data that are collected electronically in the physician's office during this study will be stored on a server at Vanderbilt University which is serving at the data management center for this multi-center study.
Status: 25 patients recruited from UCSF to date.
This Project has been very prolific in terms of publications and awards. • Winner American Orthopaedic Society for Sports Medicine O’Donoghue Award , July 2014, Seattle Washington, “Revision Anterior Cruciate Ligament Reconstruction Graft Choice Impact on Outcome in the MARS Cohort” Wright RW and the MARS Group (includes CR Allen)
•awarded NIH R01 competitive renewal grant in early 2017 to evaluate the 10 year onsite follow up.
• Winner of the 2019 Kappa Delta Ann Doner Vaughn Award for Outstanding Orthopaedic Research. Wright RW, Allen CR and the Multicenter ACL Revision Study (MARS) Group. As Member of MARS Scientific Advisory Board was named as specific recipient of award
2. Surgical Repair of Proximal Hamstring Avulsion Injuries: Functional Outcomes and Ultrasound Correlation with Confirmation of Healing This study is designed to look at the clinical outcomes of the Surgical Repair of Acute and Chronic Proximal Hamstring Ruptures. A retrospective chart review was performed to identify all patients treated surgically for complete proximal hamstring avulsion injuries by a single surgeon at a single institution from 2012-2016. All patients treated surgically and already cleared to return to full activities were asked to present to clinic to undergo functional and strength testing. Ultrasonography was also performed to assess for muscular fatty infiltration.
3. Quantitative MR Imaging Evaluation of Articular Cartilage and Kinematic changes in the knee after meniscectomy-
Principal Investigator (2011-Present)
The purpose of this study is to use high resolution cartilage sensitive MRI to evaluate the changes seen in the knee following acute meniscus tears in order to determine the effects of meniscal injury and arthroscopic debridement on the knee kinematics and cartilage biochemical properties. We specifically will evaluate alterations in the contact area and meniscal kinematics before and after surgery, and evaluate changes in the cartilage at one year after surgery to evaluate for early articular cartilage changes
Specific Aim I:
Evaluate the effects of a meniscus tear on in vivo contact area and meniscus kinematics.
This will be determined by obtaining pre-operative MRI and evaluating the initial contact area patterns at two knee flexion angles (30 degrees and 0 degrees) and knee kinematics compared to the contralateral knee. We hypothesize that a meniscal tear will lead to altered tibiofemoral contact patterns (total area and contact centroid) and altered meniscus kinematics.
Specific Aim II:
Determine the effects of arthroscopic partial meniscectomy on in vivo contact area and meniscus kinematics.
We will evaluate the effects of partial meniscectomy on contact area patterns and meniscus kinematics by obtaining a post-operative MRI to compare changes in contact area patterns and kinematics to the pre-operative condition. We hypothesize that surgical resection of the meniscus tear will not change contact area patterns or kinematics.
Specific Aim III:
Evaluate the results of arthroscopic partial meniscectomy on cartilage biochemical properties using T1rho, T2, and SPGR high resolution MRI.
We will evaluate the effects of partial meniscectomy on cartilage biochemical properties with high resolution cartilage-specific sequences at 6 months following surgery and comparing them to pre-operative values. We hypothesize that there will be changes consistent with early cartilage breakdown in the compartment that had a meniscal tear.
Souza RB, Wu SJ, Morse LJ, Subburaj K, Allen CR, Feeley BT. Cartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degeneration. Knee Surg Sports Traumatol Arthrosc. 2015 Jan;23(1):188-97. doi: 10.1007/s00167-014-2997-2. Epub 2014 May 4. PubMed PMID: 24792070.
Research Interests
Cartilage, Articular; Elbow; Knee; Osteochondritis Dissecans; Shoulder; Shoulder Dislocation; Anterior Cruciate Ligament; Posterior Cruciate Ligament; Rotator Cuff; Patellar Ligament; Collateral Ligaments; Medial Collateral Ligament, Knee; Patellar Dislocation; Quadriceps Muscle; Anterior Cruciate Ligament Reconstruction; Bone-Patellar Tendon-Bone Grafts; Anterior Cruciate Ligament Injuries; Tibial Meniscus Injuries; Hamstring Tendons; Hamstring Muscles; Rotator Cuff Injuries; Posterior Cruciate Ligament Reconstruction; Meniscus; Blood Flow Restriction Therapy
Selected Publications
- Descriptive Characteristics and Outcomes of Patients Undergoing Revision Anterior Cruciate Ligament Reconstruction With and Without Tunnel Bone Grafting.DeFroda SF, Owens BD, Wright RW, Huston LJ, Pennings JS, Haas AK, Allen CR, Cooper DE, DeBerardino TM, Dunn WR, Lantz BBA, Spindler KP, Stuart MJ, Albright JP, Amendola AN, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Butler JB, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda SJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Descriptive Characteristics and Outcomes of Patients Undergoing Revision Anterior Cruciate Ligament Reconstruction With and Without Tunnel Bone Grafting. The American Journal Of Sports Medicine 2022, 50: 2397-2409. PMID: 35833922, DOI: 10.1177/03635465221104470.
- Outcomes of revision anterior cruciate ligament reconstruction in soccer players : a cohort study.MARS Group.. Outcomes of revision anterior cruciate ligament reconstruction in soccer players : a cohort study. Bone Jt Open 2021, 2: 1043-1048. PMID: 34905939, DOI: 10.1302/2633-1462.212.BJO-2021-0145.R1.
- Association Between Graft Choice and 6-Year Outcomes of Revision Anterior Cruciate Ligament Reconstruction in the MARS Cohort.Wright RW, Huston LJ, Haas AK, Pennings JS, Allen CR, Cooper DE, DeBerardino TM, Dunn WR, Lantz BBA, Spindler KP, Stuart MJ, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Brad Butler V J, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda LSJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Association Between Graft Choice and 6-Year Outcomes of Revision Anterior Cruciate Ligament Reconstruction in the MARS Cohort. The American Journal Of Sports Medicine 2021, 49: 2589-2598. PMID: 34260326, PMCID: PMC9236596, DOI: 10.1177/03635465211027170.
- Rate of infection following revision anterior cruciate ligament reconstruction and associated patient- and surgeon-dependent risk factors: Retrospective results from MOON and MARS data collected from 2002 to 2011.Brophy RH, Wright RW, Huston LJ, Haas AK, Allen CR, Anderson AF, Cooper DE, DeBerardino TM, Dunn WR, Lantz BBA, Mann B, Spindler KP, Stuart MJ, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Bush-Joseph CA, Butler JBV, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Alexander Creighton R, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Benjamin Ma C, Peter Maiers G, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Li X, Slauterbeck JR, Smith MV, Spang JT, Svoboda LSJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Rate of infection following revision anterior cruciate ligament reconstruction and associated patient- and surgeon-dependent risk factors: Retrospective results from MOON and MARS data collected from 2002 to 2011. Journal Of Orthopaedic Research : Official Publication Of The Orthopaedic Research Society 2021, 39: 274-280. PMID: 33002248, PMCID: PMC7854959, DOI: 10.1002/jor.24871.
- Patient-Reported Activity Levels Correlate With Early Cartilage Degeneration After Anterior Cruciate Ligament ReconstructionFriedman JM, Su F, Zhang AL, Allen CR, Feeley BT, Souza R, Li X, Ma CB, Lansdown DA. Patient-Reported Activity Levels Correlate With Early Cartilage Degeneration After Anterior Cruciate Ligament Reconstruction. The American Journal Of Sports Medicine 2021, 49: 442-449. PMID: 33395319, DOI: 10.1177/0363546520980431.
- Meniscal Repair in the Setting of Revision Anterior Cruciate Ligament Reconstruction: Results From the MARS Cohort.Wright RW, Huston LJ, Haas AK, Nwosu SK, Allen CR, Anderson AF, Cooper DE, DeBerardino TM, Dunn WR, Lantz BBA, Mann B, Spindler KP, Stuart MJ, Pennings JS, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Butler V JB, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Steven J Svoboda L, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Meniscal Repair in the Setting of Revision Anterior Cruciate Ligament Reconstruction: Results From the MARS Cohort. The American Journal Of Sports Medicine 2020, 48: 2978-2985. PMID: 32822238, PMCID: PMC8171059, DOI: 10.1177/0363546520948850.
- Revision ACL Reconstruction in Adolescent Patients.Rugg CM, Pitcher AA, Allen C, Pandya NK. Revision ACL Reconstruction in Adolescent Patients. Orthopaedic Journal Of Sports Medicine 2020, 8: 2325967120953337. PMID: 33062768, PMCID: PMC7534089, DOI: 10.1177/2325967120953337.
- Predictors of clinical outcome following revision anterior cruciate ligament reconstruction.MARS Group.. Predictors of clinical outcome following revision anterior cruciate ligament reconstruction. J Orthop Res 2020, 38:1191-1203.
- Quantitative imaging of anterior cruciate ligament (ACL) graft demonstrates longitudinal compositional changes and relationships with clinical outcomes at 2 years after ACL reconstructionLansdown DA, Xiao W, Zhang AL, Allen CR, Feeley BT, Li X, Majumdar S, Ma CB. Quantitative imaging of anterior cruciate ligament (ACL) graft demonstrates longitudinal compositional changes and relationships with clinical outcomes at 2 years after ACL reconstruction. Journal Of Orthopaedic Research® 2020, 38: 1289-1295. PMID: 31868948, PMCID: PMC7433779, DOI: 10.1002/jor.24572.
- Tibial Tubercle Osteotomy and Medial Patellofemoral Ligament Imbrication for Patellar Instability Due to Trochlear DysplasiaHodax JD, Leathers MP, Ding DY, Feeley BT, Allen CR, Ma CB, Zhang AL. Tibial Tubercle Osteotomy and Medial Patellofemoral Ligament Imbrication for Patellar Instability Due to Trochlear Dysplasia. Orthopaedic Journal Of Sports Medicine 2019, 7: 2325967119865172. PMID: 31467939, PMCID: PMC6704419, DOI: 10.1177/2325967119865172.
- Predictors of Patient-Reported Outcomes at 2 Years After Revision Anterior Cruciate Ligament Reconstruction.Wright RW, Huston LJ, Haas AK, Allen CR, Anderson AF, Cooper DE, DeBerardino TM, Dunn WR, Lantz BBA, Mann B, Spindler KP, Stuart MJ, Nwosu SK, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Brad Butler V J, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda LSJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Predictors of Patient-Reported Outcomes at 2 Years After Revision Anterior Cruciate Ligament Reconstruction. The American Journal Of Sports Medicine 2019, 47: 2394-2401. PMID: 31318611, PMCID: PMC7335592, DOI: 10.1177/0363546519862279.
- ACL Graft Signal Characteristics Measured by Quantitative MRI Are Significantly Correlated with Patient Reported Outcomes Two-Years after Hamstring Autograft ACL ReconstructionLansdown D, Xiao W, Zhang A, Allen C, Feeley B, Li X, Majumdar S, Benjamin C. ACL Graft Signal Characteristics Measured by Quantitative MRI Are Significantly Correlated with Patient Reported Outcomes Two-Years after Hamstring Autograft ACL Reconstruction. Orthopaedic Journal Of Sports Medicine 2019, 7: 2325967119s00352. PMCID: PMC6664639, DOI: 10.1177/2325967119s00352.
- Pre-Operative Quantitative MRI-Based Rotator Cuff Muscle Fat Fractions Are Associated with Patient-Reported Outcomes Following Rotator Cuff RepairLansdown D, Morrison C, Zaid M, Patel R, Zhang A, Allen C, Feeley B, Benjamin C. Pre-Operative Quantitative MRI-Based Rotator Cuff Muscle Fat Fractions Are Associated with Patient-Reported Outcomes Following Rotator Cuff Repair. Orthopaedic Journal Of Sports Medicine 2019, 7: 2325967119s00276. PMCID: PMC6667849, DOI: 10.1177/2325967119s00276.
- Preoperative IDEAL (Iterative Decomposition of Echoes of Asymmetrical Length) magnetic resonance imaging rotator cuff muscle fat fractions are associated with rotator cuff repair outcomesLansdown DA, Morrison C, Zaid MB, Patel R, Zhang AL, Allen CR, Feeley BT, Ma CB. Preoperative IDEAL (Iterative Decomposition of Echoes of Asymmetrical Length) magnetic resonance imaging rotator cuff muscle fat fractions are associated with rotator cuff repair outcomes. Journal Of Shoulder And Elbow Surgery 2019, 28: 1936-1941. PMID: 31371160, DOI: 10.1016/j.jse.2019.05.018.
- Relationship Between Sports Participation After Revision Anterior Cruciate Ligament Reconstruction and 2-Year Patient-Reported Outcome Measures.Bigouette JP, Owen EC, Lantz BBA, Hoellrich RG, Huston LJ, Haas AK, Allen CR, Anderson AF, Cooper DE, DeBerardino TM, Dunn WR, Mann B, Spindler KP, Stuart MJ, Wright RW, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Butler JB, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda SJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Relationship Between Sports Participation After Revision Anterior Cruciate Ligament Reconstruction and 2-Year Patient-Reported Outcome Measures. The American Journal Of Sports Medicine 2019, 47: 2056-2066. PMID: 31225999, PMCID: PMC6939628, DOI: 10.1177/0363546519856348.
- Intra-articular Osteoid Osteoma of the Distal Femur Treated with Osteochondral Grafting: A Report of 2 Cases.Monroe EJ, Chambers CC, Davoodian A, Cho SJ, Motamedi D, Allen CR. Intra-articular Osteoid Osteoma of the Distal Femur Treated with Osteochondral Grafting: A Report of 2 Cases. JBJS Case Connector 2019, 9: e0211. PMID: 31211746, DOI: 10.2106/jbjs.cc.18.00211.
- Rehabilitation Predictors of Clinical Outcome Following Revision ACL Reconstruction in the MARS Cohort.MARS Group.. Rehabilitation Predictors of Clinical Outcome Following Revision ACL Reconstruction in the MARS Cohort. J Bone Joint Surg Am 2019, 101:779-786.
- Partial Transphyseal Anterior Cruciate Ligament Reconstruction: Clinical, Functional, and Radiographic OutcomesChambers CC, Monroe EJ, Allen CR, Pandya NK. Partial Transphyseal Anterior Cruciate Ligament Reconstruction: Clinical, Functional, and Radiographic Outcomes. The American Journal Of Sports Medicine 2019, 47: 1353-1360. PMID: 30995077, DOI: 10.1177/0363546519836423.
- PARTIAL TRANSPHYSEAL ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION: CLINICAL, FUNCTIONAL, AND RADIOGRAPHIC OUTCOMESPandya N, Allen C, Monroe E, Chambers C. PARTIAL TRANSPHYSEAL ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION: CLINICAL, FUNCTIONAL, AND RADIOGRAPHIC OUTCOMES. Orthopaedic Journal Of Sports Medicine 2019, 7: 2325967119s00081. PMCID: PMC6446351, DOI: 10.1177/2325967119s00081.
- Physiologic Preoperative Knee Hyperextension Is a Predictor of Failure in an Anterior Cruciate Ligament Revision Cohort: A Report From the MARS Group.Cooper DE, Dunn WR, Huston LJ, Haas AK, Spindler KP, Allen CR, Anderson AF, DeBerardino TM, Lantz BBA, Mann B, Stuart MJ, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Butler V JB, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda SJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ, Wright RW. Physiologic Preoperative Knee Hyperextension Is a Predictor of Failure in an Anterior Cruciate Ligament Revision Cohort: A Report From the MARS Group. The American Journal Of Sports Medicine 2018, 46: 2836-2841. PMID: 29882693, PMCID: PMC6170681, DOI: 10.1177/0363546518777732.
- Knee Imaging Following Anterior Cruciate Ligament Reconstruction: The Surgeon's and Radiologist's PerspectivesSrinivasan R, Wan J, Allen CR, Steinbach LS. Knee Imaging Following Anterior Cruciate Ligament Reconstruction: The Surgeon's and Radiologist's Perspectives. Seminars In Musculoskeletal Radiology 2018, 22: 386-397. PMID: 30134463, DOI: 10.1055/s-0038-1653953.
- Risk Factors and Predictors of Significant Chondral Surface Change From Primary to Revision Anterior Cruciate Ligament Reconstruction: A MOON and MARS Cohort Study.Magnussen RA, Borchers JR, Pedroza AD, Huston LJ, Haas AK, Spindler KP, Wright RW, Kaeding CC, Allen CR, Anderson AF, Cooper DE, DeBerardino TM, Dunn WR, Lantz BA, Mann B, Stuart MJ, Albright JP, Amendola A, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Butler JB, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda SJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Risk Factors and Predictors of Significant Chondral Surface Change From Primary to Revision Anterior Cruciate Ligament Reconstruction: A MOON and MARS Cohort Study. The American Journal Of Sports Medicine 2018, 46: 557-564. PMID: 29244532, PMCID: PMC7004295, DOI: 10.1177/0363546517741484.
- Surgical Predictors of Clinical Outcomes After Revision Anterior Cruciate Ligament Reconstruction.Allen CR, Anderson AF, Cooper DE, DeBerardino TM, Dunn WR, Haas AK, Huston LJ, Lantz BBA, Mann B, Nwosu SK, Spindler KP, Stuart MJ, Wright RW, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Butler JB, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda SJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Surgical Predictors of Clinical Outcomes After Revision Anterior Cruciate Ligament Reconstruction. The American Journal Of Sports Medicine 2017, 45: 2586-2594. PMID: 28696164, PMCID: PMC5675127, DOI: 10.1177/0363546517712952.
- Subsequent Surgery After Revision Anterior Cruciate Ligament Reconstruction: Rates and Risk Factors From a Multicenter Cohort.Ding DY, Zhang AL, Allen CR, Anderson AF, Cooper DE, DeBerardino TM, Dunn WR, Haas AK, Huston LJ, Lantz BBA, Mann B, Spindler KP, Stuart MJ, Wright RW, Albright JP, Amendola AN, Andrish JT, Annunziata CC, Arciero RA, Bach BR, Baker CL, Bartolozzi AR, Baumgarten KM, Bechler JR, Berg JH, Bernas GA, Brockmeier SF, Brophy RH, Bush-Joseph CA, Butler JB, Campbell JD, Carey JL, Carpenter JE, Cole BJ, Cooper JM, Cox CL, Creighton RA, Dahm DL, David TS, Flanigan DC, Frederick RW, Ganley TJ, Garofoli EA, Gatt CJ, Gecha SR, Giffin JR, Hame SL, Hannafin JA, Harner CD, Harris NL, Hechtman KS, Hershman EB, Hoellrich RG, Hosea TM, Johnson DC, Johnson TS, Jones MH, Kaeding CC, Kamath GV, Klootwyk TE, Levy BA, Ma CB, Maiers GP, Marx RG, Matava MJ, Mathien GM, McAllister DR, McCarty EC, McCormack RG, Miller BS, Nissen CW, O'Neill DF, Owens BD, Parker RD, Purnell ML, Ramappa AJ, Rauh MA, Rettig AC, Sekiya JK, Shea KG, Sherman OH, Slauterbeck JR, Smith MV, Spang JT, Svoboda SJ, Taft TN, Tenuta JJ, Tingstad EM, Vidal AF, Viskontas DG, White RA, Williams JS, Wolcott ML, Wolf BR, York JJ. Subsequent Surgery After Revision Anterior Cruciate Ligament Reconstruction: Rates and Risk Factors From a Multicenter Cohort. The American Journal Of Sports Medicine 2017, 45: 2068-2076. PMID: 28557557, PMCID: PMC5513777, DOI: 10.1177/0363546517707207.
- The Development and Early to Midterm Findings of the Multicenter Revision Anterior Cruciate Ligament Study.Mars Group.. The Development and Early to Midterm Findings of the Multicenter Revision Anterior Cruciate Ligament Study. J Knee Surg 2016, 29:528-532.
- Factors Influencing Graft Choice in Revision Anterior Cruciate Ligament Reconstruction in the MARS Group.MARS Group.. Factors Influencing Graft Choice in Revision Anterior Cruciate Ligament Reconstruction in the MARS Group. J Knee Surg 2016, 29:458-63.
- Meniscal and Articular Cartilage Predictors of Clinical Outcome After Revision Anterior Cruciate Ligament Reconstruction.MARS Group.. Meniscal and Articular Cartilage Predictors of Clinical Outcome After Revision Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2016, 44:1671-9.
- Accuracy of MRI evaluation of meniscus tears in the setting of ACL injuriesDufka FL, Lansdown DA, Zhang AL, Allen CR, Ma CB, Feeley BT. Accuracy of MRI evaluation of meniscus tears in the setting of ACL injuries. The Knee 2016, 23: 460-464. PMID: 26917035, DOI: 10.1016/j.knee.2016.01.018.
- Association of Meniscal Status, Lower Extremity Alignment, and Body Mass Index With Chondrosis at Revision Anterior Cruciate Ligament Reconstruction.Brophy RH, Haas AK, Huston LJ, Nwosu SK, MARS Group., Wright RW. Association of Meniscal Status, Lower Extremity Alignment, and Body Mass Index With Chondrosis at Revision Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2015, 43:1616-22.
- Osteonecrosis of the Knee After Anterior Cruciate Ligament ReconstructionLansdown DA, Shaw J, Allen CR, Ma CB. Osteonecrosis of the Knee After Anterior Cruciate Ligament Reconstruction. Orthopaedic Journal Of Sports Medicine 2015, 3: 2325967115576120. PMID: 26665035, PMCID: PMC4622362, DOI: 10.1177/2325967115576120.
- Multirater agreement of the causes of anterior cruciate ligament reconstruction failure: a radiographic and video analysis of the MARS cohort.Matava MJ, Arciero RA, Baumgarten KM, Carey JL, DeBerardino TM, Hame SL, Hannafin JA, Miller BS, Nissen CW, Taft TN, Wolf BR, Wright RW. Multirater agreement of the causes of anterior cruciate ligament reconstruction failure: a radiographic and video analysis of the MARS cohort. The American Journal Of Sports Medicine 2015, 43: 310-9. PMID: 25537942, PMCID: PMC4447190, DOI: 10.1177/0363546514560880.
- A comprehensive in vivo kinematic, quantitative MRI and functional evaluation following ACL reconstruction — A comparison between mini-two incision and anteromedial portal femoral tunnel drillingLansdown DA, Allen C, Zaid M, Wu S, Subburaj K, Souza R, Feeley BT, Li X, Ma CB. A comprehensive in vivo kinematic, quantitative MRI and functional evaluation following ACL reconstruction — A comparison between mini-two incision and anteromedial portal femoral tunnel drilling. The Knee 2014, 22: 547-553. PMID: 25982298, PMCID: PMC4472567, DOI: 10.1016/j.knee.2014.12.005.
- Effect of graft choice on the outcome of revision anterior cruciate ligament reconstruction in the Multicenter ACL Revision Study (MARS) Cohort.MARS Group., MARS Group.. Effect of graft choice on the outcome of revision anterior cruciate ligament reconstruction in the Multicenter ACL Revision Study (MARS) Cohort. Am J Sports Med 2014, 42:2301-10.
- Osteoarthritis Classification Scales: Interobserver Reliability and Arthroscopic Correlation.Wright RW, MARS Group.. Osteoarthritis Classification Scales: Interobserver Reliability and Arthroscopic Correlation. J Bone Joint Surg Am 2014, 96:1145-1151.
- Cartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degenerationSouza RB, Wu SJ, Morse LJ, Subburaj K, Allen CR, Feeley BT. Cartilage MRI relaxation times after arthroscopic partial medial meniscectomy reveal localized degeneration. Knee Surgery, Sports Traumatology, Arthroscopy 2014, 23: 188-197. PMID: 24792070, DOI: 10.1007/s00167-014-2997-2.
- Radiographic findings in revision anterior cruciate ligament reconstructions from the Mars cohort.MARS Group.. Radiographic findings in revision anterior cruciate ligament reconstructions from the Mars cohort. J Knee Surg 2013, 26:239-47.
- Differences in Mechanisms of Failure, Intraoperative Findings, and Surgical Characteristics Between Single- and Multiple-Revision ACL ReconstructionsChen JL, Allen CR, Stephens TE, Haas AK, Huston LJ, Wright RW, Feeley BT, Albright J, Amendola A, Anderson A, Andrish J, Annunziata C, Arciero R, Bach B, Baker C, Bartolozzi A, Baumgarten K, Bechler J, Berg J, Bernas G, Brockmeier S, Brophy R, Bush-Joseph C, Butler J, Campbell J, Carey J, Carpenter J, Cole B, Cooper D, Cooper J, Cox C, Creighton R, Dahm D, David T, DeBerardino T, Dunn W, Flanigan D, Frederick R, Ganley T, Gatt C, Gecha S, Giffin J, Hame S, Hannafin J, Harner C, Harris N, Hechtman K, Hershman E, Hoellrich R, Hosea T, Johnson D, Johnson T, Jones M, Kaeding C, Kamath G, Klootwyk T, Lantz B, Levy B, Ma C, Maiers G, Mann B, Marx R, Matava M, Mathien G, McAllister D, McCarty E, McCormack R, Miller B, Nissen C, O’Neill D, Owens M, Parker R, Purnell M, Ramappa A, Rauh M, Rettig A, Sekiya J, Shea K, Sherman O, Slauterbeck J, Smith M, Spang J, Spindler K, Stuart M, Svoboda L, Taft T, Tenuta C, Tingstad E, Vidal A, Viskontas D, White R, Williams J, Wolcott M, Wolf B, York J. Differences in Mechanisms of Failure, Intraoperative Findings, and Surgical Characteristics Between Single- and Multiple-Revision ACL Reconstructions. The American Journal Of Sports Medicine 2013, 41: 1571-1578. PMID: 23698386, PMCID: PMC3839418, DOI: 10.1177/0363546513487980.
- Tibiofemoral contact area remains abnormal following anterior cruciate ligament reconstructionLansdown D, Allen C, Wu S, Morse L, Schairer W, Li X, Ma B. Tibiofemoral contact area remains abnormal following anterior cruciate ligament reconstruction. Osteoarthritis And Cartilage 2013, 21: s237-s238. DOI: 10.1016/j.joca.2013.02.487.
- Femoral tunnel malposition in ACL revision reconstruction.Morgan JA, Dahm D, Levy B, Stuart MJ, MARS Study Group.. Femoral tunnel malposition in ACL revision reconstruction. J Knee Surg 2012, 25:361-8.
- Association between previous meniscal surgery and the incidence of chondral lesions at revision anterior cruciate ligament reconstruction.Brophy RH, Wright RW, David TS, McCormack RG, Sekiya JK, Svoboda SJ, Huston LJ, Haas AK, Steger-May K, Multicenter ACL Revision Study (MARS) Group.. Association between previous meniscal surgery and the incidence of chondral lesions at revision anterior cruciate ligament reconstruction. Am J Sports Med 2012, 40:808-14.
- Evaluation and management of osteochondral lesions of the knee.Kao YJ, Ho J, Allen CR. Evaluation and management of osteochondral lesions of the knee. The Physician And Sportsmedicine 2011, 39: 60-9. PMID: 22293769, DOI: 10.3810/psm.2011.11.1940.
- Intra-articular findings in primary and revision anterior cruciate ligament reconstruction surgery: a comparison of the MOON and MARS study groups.Borchers JR, Kaeding CC, Pedroza AD, Huston LJ, Spindler KP, Wright RW, MOON Consortium and the MARS Group.. Intra-articular findings in primary and revision anterior cruciate ligament reconstruction surgery: a comparison of the MOON and MARS study groups. Am J Sports Med 2011, 39:1889-93.
- Arthroscopic evaluation and treatment of biceps brachii long head tendon injuries: A survey of the MOON shoulder group.Miller T, Jones G, Moon Shoulder Group.. Arthroscopic evaluation and treatment of biceps brachii long head tendon injuries: A survey of the MOON shoulder group. Int J Shoulder Surg 2011, 5:68-71.
- Patients' attitudes and factors in their selection of grafts for anterior cruciate ligament reconstructionCheung SC, Allen CR, Gallo RA, Benjamin C, Feeley BT. Patients' attitudes and factors in their selection of grafts for anterior cruciate ligament reconstruction. The Knee 2011, 19: 49-54. PMID: 21211979, DOI: 10.1016/j.knee.2010.11.009.
- Descriptive Epidemiology of the Multicenter ACL Revision Study (MARS) CohortWright R, Huston L, Spindler K, Dunn W, Haas A, Allen C, Cooper D, DeBerardino T, Lantz B, Mann B, Stuart M. Descriptive Epidemiology of the Multicenter ACL Revision Study (MARS) Cohort. The American Journal Of Sports Medicine 2010, 38: 1979-1986. PMID: 20889962, PMCID: PMC3655411, DOI: 10.1177/0363546510378645.
- Anterior Cruciate Ligament Graft ReconstructionGiaconi JC, Allen CR, Steinbach LS. Anterior Cruciate Ligament Graft Reconstruction. Topics In Magnetic Resonance Imaging 2009, 20: 129-150. PMID: 20410802, DOI: 10.1097/rmr.0b013e3181d657a7.
- Neuromuscular and Biomechanical Adaptations of Patients with Isolated Deficiency of the Posterior Cruciate LigamentFontboté CA, Sell TC, Laudner KG, Haemmerle M, Allen CR, Margheritini F, Lephart SM, Harner CD. Neuromuscular and Biomechanical Adaptations of Patients with Isolated Deficiency of the Posterior Cruciate Ligament. The American Journal Of Sports Medicine 2005, 33: 982-989. PMID: 15888720, DOI: 10.1177/0363546504271966.
- CHAPTER 67 Posterior Cruciate Ligament: Diagnosis and Decision MakingAllen C, Rihn J, Harner C. CHAPTER 67 Posterior Cruciate Ligament: Diagnosis and Decision Making. 2004, 687-702. DOI: 10.1016/b978-0-7216-0013-0.50070-3.
- Revision anterior cruciate ligament reconstructionAllen CR, Giffin JR, Harner CD. Revision anterior cruciate ligament reconstruction. Orthopedic Clinics Of North America 2003, 34: 79-98. PMID: 12735203, DOI: 10.1016/s0030-5898(02)00066-4.
- Natural History of the Post-Meniscectomy KneeLee J, Allen C, Fu F. Natural History of the Post-Meniscectomy Knee. Sports Medicine And Arthroscopy Review 2002, 10: 236-243. DOI: 10.1097/00132585-200210040-00002.
- Posterior cruciate ligament injuriesAllen CR, Kaplan LD, Fluhme DJ, Harner CD. Posterior cruciate ligament injuries. Current Opinion In Rheumatology 2002, 14: 142-149. PMID: 11845019, DOI: 10.1097/00002281-200203000-00011.
- Transient quadriparesis in the athleteAllen CR, Kang JD. Transient quadriparesis in the athlete. Clinics In Sports Medicine 2002, 21: 15-27. PMID: 11877869, DOI: 10.1016/s0278-5919(03)00054-1.
- Potential complication of bioabsorbable screw fixation for osteochondritis dissecans of the kneeScioscia T, Giffin J, Allen C, Harner C. Potential complication of bioabsorbable screw fixation for osteochondritis dissecans of the knee. Arthroscopy The Journal Of Arthroscopic And Related Surgery 2001, 17: 1-5. PMID: 11172259, DOI: 10.1053/jars.2001.17995.
- Importance of the Medial Meniscus in the Anterior Cruciate Ligament-deficient KneeAllen C, Wong E, Livesay G, Sakane M, Fu F, Woo S. Importance of the Medial Meniscus in the Anterior Cruciate Ligament-deficient Knee. Journal Of Bone And Joint Surgery 2000, 82: 52. DOI: 10.2106/00004623-200005000-00036.
- Importance of the medial meniscus in the anterior cruciate ligament‐deficient kneeAllen C, Wong E, Livesay G, Sakane M, Fu F, Woo S. Importance of the medial meniscus in the anterior cruciate ligament‐deficient knee. Journal Of Orthopaedic Research® 2000, 18: 109-115. PMID: 10716286, DOI: 10.1002/jor.1100180116.
- Early expression of marker genes in the rabbit medial collateral and anterior cruciate ligaments: The use of different viral vectors and the effects of injuryHildebrand K, Deie M, Allen C, Smith D, Georgescu H, Evans C, Robbins P, Woo S. Early expression of marker genes in the rabbit medial collateral and anterior cruciate ligaments: The use of different viral vectors and the effects of injury. Journal Of Orthopaedic Research® 1999, 17: 37-42. PMID: 10073645, DOI: 10.1002/jor.1100170107.
- Injury and reconstruction of the anterior cruciate ligament and knee osteoarthritisAllen C, Livesay G, Wong E, Woo S. Injury and reconstruction of the anterior cruciate ligament and knee osteoarthritis. Osteoarthritis And Cartilage 1999, 7: 110-121. PMID: 10367019, DOI: 10.1053/joca.1998.0166.
- The Effects of Platelet-Derived Growth Factor-BB on Healing of the Rabbit Medial Collateral LigamentHildebrand K, Woo S, Smith D, Allen C, Deie M, Taylor B, Schmidt C. The Effects of Platelet-Derived Growth Factor-BB on Healing of the Rabbit Medial Collateral Ligament. The American Journal Of Sports Medicine 1998, 26: 549-554. PMID: 9689377, DOI: 10.1177/03635465980260041401.
- Effect of combined axial compressive and anterior tibial loads on in situ forces in the anterior cruciate ligament: A porcine studyLi G, Rudy T, Allen C, Sakane M, Woo S. Effect of combined axial compressive and anterior tibial loads on in situ forces in the anterior cruciate ligament: A porcine study. Journal Of Orthopaedic Research® 1998, 16: 122-127. PMID: 9565084, DOI: 10.1002/jor.1100160121.
- The effects of age on rabbit MCL fibroblast matrix synthesis in response to TGF-β1 or EGFDeie M, Marui T, Allen C, Hildebrand K, Georgescu H, Niyibizi C, Woo S. The effects of age on rabbit MCL fibroblast matrix synthesis in response to TGF-β1 or EGF. Mechanisms Of Ageing And Development 1997, 97: 121-130. PMID: 9226631, DOI: 10.1016/s0047-6374(97)00049-3.
- Force Distribution in the Anterior Cruciate Ligament and its Clinical ImplicationsSportorthopädie- Sporttraumatologie, March 1997 Volume 13, p. 37-48