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[POSTEROLATERAL AND POSTEROMEDIAL APPROACHES FOR TREATMENT OF POSTERIOR Pilon FRACTURES IN ELDERLY PATIENTS]
Juwen Chen1, Yongqing Wang1, Lingwei Kong2
1Department of Orthopaedics, the Fourth Central Clinical College, Tianjin Medical University, Tianjin, 300140, P. R. China.
Objective:
To explore the clinical outcomes of open reduction and internal fixation by posterolateral and posteromedial approaches for treating posterior Pilon fractures in elderly patients.
Methods:
Between August 2009 and August 2014, 20 elderly patients with posterior Pilon fractures were treated with open reduction and internal fixation by posterolateral and posteromedial approaches. There were 14 males and 6 females, aged from 66 to 83 years (mean, 72.7 years). The causes were falling injury in 11 cases and traffic accident injury in 9 cases. All the patients had lateral malleolus and medial malleolus fractures. The time from injury to operation was 7-14 days (mean, 8.6 days). The posterolateral incision was made to expose the posterolateral bone fragments of posterior malleolus and lateral malleolus fracture, and the posteromedial incision was made to expose the posteromedial fracture fragments of posterior malleolus and medial malleolus fracture. After reduction, fracture was fixed with locking plate or cannulated screw. All the patients began to functional exercise at 1 day after operation.
Results:
The operation time was 60-110 minutes (mean, 92 minutes). The incisions healed primarily in all patients. There were no complications of incision dehiscence, infection, implant exposure, and nerve damage. No irritation sign of tendon was observed. All 20 cases were followed up for 12-18 months (mean, 13 months). The X-ray films showed that fracture healed at 3-9 months, with an average of 5.2 months. During follow-up period, no loosening or breakage of the implant was observed. The other patients could walk normally except 2 patients (over 80 years old) who could walk with crutch. According to American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, the results were excellent in 12 cases, good in 4 cases, and fair in 4 cases; the excellent and good rate was 80%.
Conclusions:
A combination of posterolateral approach and posteromedial approach for open reduction and fixation of posterior Pilon fractures can achieve satisfactory effect in elderly patients. It has the advantages of protecting ankle blood supply and avoiding the soft tissue necrosis and implants exposure.
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