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Multicenter follow-up study of ankle fracture surgery
Hai-lin Xu1, Li-min Liu, Xuan Li
1Department of Orthopaedic Trauma, Peking University People's Hospital, Beijing, China.
Background:
Few data on ankle fractures in China from large multicenter epidemiological and clinical studies are available. The aim of this research was to evaluate the epidemiological features and surgical outcomes of ankle fractures by reviewing 235 patients who underwent ankle fracture surgery at five hospitals in China.
Methods:
This study included patients who underwent ankle fracture surgery at five Chinese hospitals from January 2000 to July 2009. Age, gender, mechanism of injury, Arbeitsgemeinschaft für Osteosynthesefragen (AO) fracture type, fracture pattern, length of hospital stay and treatment outcome were recorded. Statistical analyses were conducted using SPSS software. The American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale, visual analogue scale (VAS), and arthritis scale were used to evaluate outcome.
Results:
Of 235 patients with ankle fractures, 105 were male with an average age of 37.8 years and 130 were female with an average age of 47.3 years. The average follow-up period was 55.7 months. There were significant differences in the ratios of patients in different age groups between males and females, and in mechanisms of injury among different age groups. There were also significant differences in the length of hospital stay among different fracture types and mechanisms of injury. In healed fractures, the average AOFAS ankle-hindfoot score was 95.5, with an excellence rate of 99.6%, the average VAS score was 0.17, and the average arthritis score was 0.18. Movement of the injured ankle was significantly different to that of the uninjured ankle. There were no significant differences between AO fracture types, fracture patterns or follow-up periods and AOFAS score, but there were some significant differences between these parameters and ankle joint movements, pain VAS score and arthritis score.
Conclusions:
Ankle fractures occur most commonly in middle-aged and young males aged 20 - 39 years and in elderly females aged 50 - 69 years. The most common mechanisms of injury are twisting injuries and falls from a standing height or less. The results of surgical treatment are satisfactory.