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
Tibiocalcaneonavicular 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
Spring Ligament Tear Decreases the Ankle and Talonavicular Joint Reaction Forces
Oh I, Kelly M, Maqsoodi N, Vasconcellos D, Osman W, Fowler X, Elfar J, Olles M. Spring Ligament Tear Decreases the Ankle and Talonavicular Joint Reaction Forces. Foot & Ankle Orthopaedics 2016, 1: 2473011416s00072. DOI: 10.1177/2473011416s00072.Peer-Reviewed Original ResearchSpring ligament tearsLigament reconstructionLigament tearsTalonavicular jointInjury modelJoint reaction forcesTibiocalcaneonavicular ligamentBiomechanical studyMedial ankle instabilityAdjacent soft tissuesSpring ligament reconstructionPrevious anatomic studiesCadaveric lower legsFirst biomechanical studyClinical efficacyHuman cadaveric lower legsValgus deformitySemitendinosus allograftDistal tibiaFlatfoot deformityDeltoid ligamentAnkle instabilityNavicular tuberosityAnatomic studyLower legReconstruction 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