• Sinan Karaca, Meriç Enercan, Güzelali Özdemir, Sinan Kahraman, Mutlu Çobanoğlu, and Metin Küçükkaya.
• Department of Orthopedics and Traumatology, İstanbul Florence Nightingale Hospital, İstanbul-Turkey. mdsnn@hotmail.com.
• Ulus Travma Acil Cer. 2016 Nov 1; 22 (6): 553-558.

BackgroundThe aim of this retrospective study was to evaluate treatment effect and importance of posterior malleolus (PM) fixation in surgically treated trimalleolar fractures.MethodsA total of 57 cases of ankle joint fracture involving PM and treated with open reduction and internal fixation technique between 2004 and 2011 were evaluated. PM fixation was performed with cannulated screws in 46 cases, and in 11 cases, PM plate was used. All patients were assessed using American Orthopaedic Foot and Ankle Society (AOFAS) score, American Academy of Orthopedic Surgeons (AAOS) foot and ankle questionnaire, and Visual Analog Score (VAS) pain scale. Ankle joint mobility was also compared with unaffected side.ResultsMean follow-up period was 44.6 months (range: 24-108 months). There were 36 female patients and 21 male patients between 23 and 85 years of age (mean: 55.9 years). Average time to surgery was 1.1 day (range: 1-3 days). According to AOFAS assessment, result was excellent in 21 patients and good in 26 patients. AAOS score was 92.4 (range: 32-100). Mean VAS score when resting was 1.1, and mean score was 1.3 when walking (range: 0-10). When compared with uninjured side, there was no significant difference in plantar flexion of ankle (p=0.325) but there was significant difference in dorsiflexion of ankle joint (p<0.001).ConclusionAnatomical reduction and rigid internal fixation of PM provide satisfactory clinical and functional outcomes even in elderly patients where bone quality may make adequate fixation difficult. Fixation of even small PM fragments can facilitate rehabilitation by creating more stable construction.

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