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BACKGROUND: The purpose of our study was to describe and compare extensor mechanism injuries with regard to age, sex, body mass index (BMI), and comorbidities.
METHODS: We identified patients who had undergone surgical management of an extensor mechanism injury at two institutions between 1986 and 2012. Data analyzed included age at the time of surgery, sex, height, weight, and the presence of medical comorbidities. Patients with chronic disruption of the quadriceps or patellar tendon, those undergoing revision surgery, or those with injuries in the setting of total knee arthroplasty were excluded.
RESULTS: Seven hundred and twenty-six patients were included. There were 427 (58.8%) patellar fractures, 210 (28.9%) quadriceps tendon ruptures, and eighty-nine (12.3%) patellar tendon ruptures.
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