title: Functional outcome of total knee arthroplasty after periprosthetic distal femoral fracture.
abstract: A prospective matched cohort study was performed to compare functional outcomes between 28 patients with periprosthetic femoral fractures and 28 with primary total knee arthroplasties (TKA). The mean follow-up was 6.7 years (range, 5-9). Radiographic osteopenia was a predisposing factor, but not notching, body mass index, or preinjury knee scores or motion. At last follow-up, the Knee Society scores, knee motion, Womac, and SF-12 were significantly lower in the fracture group, and were significantly decreased compared to the preinjury status. We found that periprosthetic distal femoral fracture after TKA worsens functional outcomes at the medium term, but arthroplasty complication and survival rates were similar in both groups.
authors.affiliation: Department of Orthopaedic Surgery, Hospital Universitario Elda, Elda, Alicante, Spain.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Lizaur-Utrilla
authors.forename: Francisco A
authors.initials: FA
authors.lastname: Miralles-Muñoz
authors.forename: Javier
authors.initials: J
authors.lastname: Sanz-Reig
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D005260:Female; D005264:Femoral Fractures / Q000209:etiology / Q000628:therapy*; D005500:Follow-Up Studies; D017102:Fracture Healing; D006801:Humans; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D057068:Periprosthetic Fractures / Q000209:etiology / Q000628:therapy*; D011446:Prospective Studies; D016059:Range of Motion, Articular; D020127:Recovery of Function; D012307:Risk Factors
keywords: functional outcome; periprosthetic fracture; total knee arthroplasty