title: The Effect of Distal Femoral Resection on Fixed Flexion Deformity in Total Knee Arthroplasty.
abstract: This study aims to quantify the relationship between distal femoral bone resection and correction of fixed flexion in total knee arthroplasty (TKA). Two previous studies have reported conflicting results. Spacers attached to the trial femoral component simulated additional distal femoral resection and the degree of knee flexion was recorded using computer navigation. The 2-mm augment produced an average of 3.37° of flexion deformity, 4-mm augment 6.68°, and 6-mm augment 11.38°. The amount of pre-resection flexion contracture significantly impacted on the effect of each augment. From our results, an additional 3.55 mm of distal femoral bone resection is required to correct 10° fixed flexion and produced less correction of flexion deformity as traditionally believed in TKA.
authors: Gold Coast Centre for Bone and Joint Surgery, Queensland, Australia.
authors: David W
authors: DW
authors: Liu
authors: Department of Orthopaedics, Gold Coast University Hospital, Queensland, Australia.
authors: James F
authors: JF
authors: Reidy
authors: Centre for Research in Evidence-Based Practice, Bond University, Gold Coast, Queensland Australia.
authors: Elaine M
authors: EM
authors: Beller
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D015331:Cohort Studies; D005260:Female; D005269:Femur / Q000601:surgery*; D006801:Humans; D007717:Knee / Q000601:surgery; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D011474:Prosthesis Design; D016059:Range of Motion, Articular
keywords: distal resection; fixed flexion; total knee