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
2019
Deltoid-Spring Ligament Reconstruction in Adult Acquired Flatfoot Deformity With Medial Peritalar Instability
Brodell JD, MacDonald A, Perkins JA, Deland JT, Oh I. Deltoid-Spring Ligament Reconstruction in Adult Acquired Flatfoot Deformity With Medial Peritalar Instability. Foot & Ankle International 2019, 40: 753-761. PMID: 30902021, DOI: 10.1177/1071100719839176.Peer-Reviewed Original ResearchConceptsPROMIS Pain InterferenceSpring ligament tearsPhysical functionPeritalar instabilityRadiographic outcomesLigament reconstructionLigament tearsOsseous correctionFlatfoot deformityPeritalar stabilitySF-36 physical functionTibiocalcaneonavicular ligamentTalo-first metatarsal angleAdult Acquired Flatfoot DeformityPostoperative weightbearing radiographsPostoperative clinical outcomesPROMIS Physical FunctionAnkle Ability MeasureRetrospective case seriesOutcomes Measurement Information SystemViable surgical optionCalcaneal pitch angleTalonavicular coverage angleAcquired Flatfoot DeformityMeasurement Information System
2018
Deltoid-Spring Ligament Reconstruction in Stage IIB Adult Acquired Flatfoot Deformity with Spring Ligament Tear
Oh I, MacDonald A, Ikepeze T, Deland J. Deltoid-Spring Ligament Reconstruction in Stage IIB Adult Acquired Flatfoot Deformity with Spring Ligament Tear. Foot & Ankle Orthopaedics 2018, 3: 2473011418s00372. DOI: 10.1177/2473011418s00372.Peer-Reviewed Original ResearchAdult Acquired Flatfoot DeformitySpring ligament tearsSF-36 physical functionLigament tearsPhysical functionAcquired Flatfoot DeformityOsseous correctionRadiographic outcomesFlatfoot deformityOutcomes Measurement Information System Physical FunctionShort-term clinical investigationsViable surgical treatment optionPeritalar stabilityPost-operative clinical outcomesTibiocalcaneonavicular ligamentTalo-first metatarsal anglePROMIS Physical FunctionSurgical treatment optionsCalcaneal pitch anglePain interference domainTalonavicular coverage angleAP talo-first metatarsal anglePrevious anatomic studiesGastrocnemius recessionLigament reconstruction
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