One-staged hip and knee arthroplasty: a retrospective clinical and radiographical study

BACKGROUND: Prosthetic replacements of the hip and knee are two great successes of orthopedic surgery, which have shown effectiveness and reliability. One-staged hip or knee replacement may be indicated for patients affected from symptomatic end-stage bilateral hip or knee osteoarthritis. The aim of this study was to evaluate clinical and radiographi-cal outcomes and complications of a group of 12 patients. METHODS: All the patients were evaluated clinically by Western Ontario and McMaster Universities Osteoarthritis In-dex (WOMAC) and Visual Analogue Scale and radiographically (offset, cervical-diaphyseal angle, hip-knee-ankle angle, limb length discrepancy, osseointegration, heterotopic ossification). A statistical analysis was performed. RESULTS: At a mean follow-up of 28.8 months all the implants were well-positioned and osseointegrated. There was a marked improvement in pain (P<0.001) and WOMAC (P<0.001). The radiographic evaluations showed good restoration of the articular geometry. No complications were recorded. CONCLUSIONS: One-staged hip and knee arthroplasty has demonstrated to have good functional outcomes with low complication rate.