Abstract:Objective: To investigate the clinical effect of a new anatomic locking plate for posterior malleolus fracture. Methods: Data of 22 patients (male of 14 patients and female of 8 patients; age from 21-57 years old, average of 42.5 years old) with ankle fractures (all the fractures involved the posterior ankle and the fracture area≥25%) that were admitted to our hospital from September 2017 to December 2018 were collected, including 20 patients suffered trimalleolar fracture (11 patients with type AO and B, and 9 patients with type C) and 2 patients suffered posterior malleolus fracture. All patients were treated with open reduction via the posterolateral approach and internal fixation with a new posterior malleolus anatomical locking plate after 3 days to 7 days (mean 5 days) of deswelling until the appearance of dermatoglyphic lines. Results: After operation, 22 patients were followed up for 11 to 25 months (mean 16 months). The fracture healing time was 8 to 13 weeks, with an average of 11.8 weeks. There was no fracture delay healing and fracture non-healing. One patient had superficial skin infection, which was healed after dressing change. No traumatic osteaorthritis was occurred at the last follow-up. All patients were evaluated with the American Orthopaedic Foot and Ankle Society ankle-hindfoot scale: excellent 20 cases and good 2 cases, with excellent and good rate of 100% and average score of 94.0 points. Conclusion: The new anatomic locking plate of posterior malleolus has a good curative effect and is a good choice for fixing posterior malleolus fracture.
