2024
Biomechanical Effects of Subtalar Joint Fusion and Medial Ligament Reconstruction in Simulated Progressive Collapsing Foot Deformity
Lee W, Tecle N, Knapp E, Awad H, Oh I. Biomechanical Effects of Subtalar Joint Fusion and Medial Ligament Reconstruction in Simulated Progressive Collapsing Foot Deformity. Foot & Ankle International 2024, 45: 279-290. PMID: 38240174, DOI: 10.1177/10711007231220940.Peer-Reviewed Original ResearchMedial displacement calcaneal osteotomyProgressive collapsing foot deformitySubtalar joint fusionSevere flatfoot modelFlatfoot modelHeel alignmentValgus tiltMedial ligament reconstructionFoot deformityFresh-frozen cadaveric foot specimensJoint fusionLigament strainBiomechanical effectsTalo-first metatarsal angleCadaveric foot specimensLigament reconstructionSubtalar angleFoot alignmentFoot malalignmentForefoot abductionMetatarsal angleTibiotalar angleTibiotalar tiltFoot specimensCalcaneal osteotomy
2022
Peritalar Kinematics Restored with Combined Subtalar Fusion and Medial Ligament Reconstruction in a Simulated Advance Progressive Collapsing Flatfoot Deformity Model
Tecle N, Oh I, Gira E, Awad H. Peritalar Kinematics Restored with Combined Subtalar Fusion and Medial Ligament Reconstruction in a Simulated Advance Progressive Collapsing Flatfoot Deformity Model. Foot & Ankle Orthopaedics 2022, 7: 2473011421s00470. PMCID: PMC8793585, DOI: 10.1177/2473011421s00470.Peer-Reviewed Original ResearchMedializing calcaneal osteotomySubtalar fusionLigament reconstructionValgus angleSevere flatfoot modelHeel alignmentFlatfoot modelMeary's angleCoronal angleMedial ankle ligamentsMedial ligament reconstructionSequential surgical proceduresMultiple comparison testCadaveric foot specimensTibiotalar osteoarthritisTibiotalar angleMedial archValgus alignmentTibiotalar jointFlatfoot deformityHindfoot alignmentAnkle ligamentsSurgical proceduresCalcaneal osteotomyMedial stability
2020
Peritalar Kinematics With Combined Deltoid-Spring Ligament Reconstruction in Simulated Advanced Adult Acquired Flatfoot Deformity
MacDonald A, Ciufo D, Vess E, Knapp E, Awad HA, Ketz JP, Flemister AS, Oh I. Peritalar Kinematics With Combined Deltoid-Spring Ligament Reconstruction in Simulated Advanced Adult Acquired Flatfoot Deformity. Foot & Ankle International 2020, 41: 1149-1157. PMID: 32495639, DOI: 10.1177/1071100720929004.Peer-Reviewed Original ResearchConceptsSpring ligament tearsLigament reconstructionDeltoid ligament reconstructionLigament tearsTibiotalar jointFlatfoot deformityPeritalar stabilityFlatfoot modelTibiocalcaneonavicular ligamentAdult Acquired Flatfoot DeformityRecent anatomic studiesAcquired Flatfoot DeformityCadaveric flatfoot modelCadaveric foot specimensPeritalar jointsProgressive deformityValgus deformityMedial ligamentValgus alignmentSubtalar jointValgus angleDeltoid ligamentSevere modelMedial stabilityAnatomic study
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
2013
Sensitivity of Plantar Pressure and Talonavicular Alignment to Lateral Column Lengthening in Flatfoot Reconstruction
Oh I, Imhauser C, Choi D, Williams B, Ellis S, Deland J. Sensitivity of Plantar Pressure and Talonavicular Alignment to Lateral Column Lengthening in Flatfoot Reconstruction. Journal Of Bone And Joint Surgery 2013, 95: 1094-1100. PMID: 23783206, PMCID: PMC6948803, DOI: 10.2106/jbjs.k.01032.Peer-Reviewed Original ResearchConceptsLateral aspectPlantar pressureTalonavicular jointLateral columnFlatfoot modelLateral plantar pressureLateral Column LengtheningCadaveric flatfoot modelCadaveric foot specimensPlantar pressure dataAxial loadFlatfoot deformityFlatfoot reconstructionTensile loadAchilles tendonSagittal correctionFlatfoot conditionAbduction angleFoot specimensIntact footContact areaForefootSoft tissueSagittal planeSignificant differences