2020
Radiographic Outcomes after Flexible Flatfoot Reconstruction with and without Spring Ligament Reconstruction
Kohring J, MacDonald A, Karnyski S, Oh I, Baumhauer J, Ketz J, Flemister A. Radiographic Outcomes after Flexible Flatfoot Reconstruction with and without Spring Ligament Reconstruction. Foot & Ankle Orthopaedics 2020, 5: 2473011420s00008. PMCID: PMC8697192, DOI: 10.1177/2473011420s00008.Peer-Reviewed Original ResearchTalonavicular uncoverage angleSpring ligament repairSpring ligament reconstructionStage II AAFDRadiographic outcomesFlatfoot reconstructionLigament reconstructionCalcaneal pitchMeary's angleLigament repairSuture repairTibiotalar tiltRadiographic measurementsMetatarsal angleSuture deviceStage II adultTalar-first metatarsal anglePreoperative radiographic measurementsPostoperative radiographic outcomesRadiographic differencesFlatfoot deformityInclusion criteriaRepair groupSpring ligamentPatients
2018
Spring ligament tear decreases static stability of the ankle joint
Kelly M, Masqoodi N, Vasconcellos D, Fowler X, Osman WS, Elfar JC, Olles MW, Ketz JP, Flemister AS, Oh I. Spring ligament tear decreases static stability of the ankle joint. Clinical Biomechanics 2018, 61: 79-83. PMID: 30529505, DOI: 10.1016/j.clinbiomech.2018.11.011.Peer-Reviewed Original ResearchConceptsJoint reactive forcesSpring ligament injurySpring ligament tearsLigament injuryLigament tearsInjury modelTalonavicular jointInjury statesCadaveric lower legsLigament reconstructionHuman cadaveric lower legsNon-invasive methodFlatfoot deformityDeltoid ligamentSpring ligamentLower legJoint stabilityAnkle jointKnee jointBiomechanical studyLigamentLimbSignificant increaseInjuryAdvanced adultTibiocalcaneonavicular Ligament Reconstruction in Simulated Flatfoot Deformity with Medial Ligament Insufficiency
MacDonald A, Ciufo D, Knapp E, Awad H, Ketz J, Flemister A, Deland J, Oh I. Tibiocalcaneonavicular Ligament Reconstruction in Simulated Flatfoot Deformity with Medial Ligament Insufficiency. Foot & Ankle Orthopaedics 2018, 3: 2473011418s00327. DOI: 10.1177/2473011418s00327.Peer-Reviewed Original ResearchSpring ligament tearsLigament reconstructionLigament tearsHindfoot valgusFlatfoot deformityMedial stabilitySpring ligamentPeritalar jointsFlatfoot modelPercent correctionMedial ligamentSubtalar jointReconstruction typeAbduction angleAchilles tendon loadDeltoid ligament reconstructionPeroneus longus tendonSpring ligament reconstructionCadaveric flatfoot modelCadaveric foot specimensSignificant improvementTendon allograftTendon transferLigament insufficiencyLongus tendon
2016
Reconstruction of the Deltoid-Spring Ligament
Grunfeld R, Oh I, Flemister S, Ketz J. Reconstruction of the Deltoid-Spring Ligament. Techniques In Foot & Ankle Surgery 2016, 15: 39-46. DOI: 10.1097/btf.0000000000000108.Peer-Reviewed Original ResearchSurgical techniqueAnatomic reconstructionAdult-acquired flatfoot deformityPeroneus longus allograftSpring ligament insufficiencyFirst surgical techniqueSpring ligament reconstructionSpring ligament complexLigament reconstructionLigament insufficiencyDeformity patientsLigamentous stabilityFlatfoot deformityDeltoid ligamentSpring ligamentLigament complexTibiocalcaneonavicular ligamentDeltoidLigamentAdequate correctionExpert opinionLevel 5AllograftsPatients