Open Reduction and Internal Fixation of Posterolateral Tibial Plateau Fractures Through Fibula Osteotomy-Free Posterolateral Approach

Objective: To evaluate the outcome of patients with posterolateral tibial plateau fractures after open reduction and internal fixation with a fibula osteotomy-free posterolateral approach. Design: Retrospective chart and operation note review. Setting: A medical college-affiliated tertiary hospital. Materials and Methods: A retrospective chart and radiographic review of posterolateral tibial plateau fractures treated with a posterolateral approach between January 2006 and July 2010 was performed. The primary (ie, the total Rasmussen function score) and secondary (ie, the postoperative infection, knee deformity, and complications) outcomes were analyzed. Results: A total of 32 patients were identified for this study. Patients were followed for an average of 18.2 months (range, 12-36 months); the total Rasmussen function score was 24.8 +/- 2.9 points. The results were rated as excellent (>= 27 points) in 19 patients, good (20-26 points) in 11, and fair (10-19 points) in 2 patients. No wound infections, screw loosening or implant fracture, and nonunion, deformity, or fracture redisplacement were seen. Stretch injury of the common peroneal nerve was found in 1 patient, who obtained recovery 2 months after additional conservative management. Conclusions: Adequate open reduction and internal fixation with a fibula osteotomy-free posterolateral approach can attain a satisfactory clinical outcome for patients with posterolateral tibial plateau fractures.