The records and radiographs of 162 patients with 224 total knee replacements were reviewed for evidence of complications. Early complications included cardiovascular abnormalities, in particular deep vein thrombosis (3%), and limitation of motion requiring manipulation under anesthesia (7%). Late problems included patellofemoral arthritis (11%), heterotopic bone formation (10%), loosening (7%), deformity (4%), fracture (3%), and infection (2%). Patellofemoral pain and arthritis is the most common and often the most disabling complication.
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Lovelock et al. (1984) studied this question.
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