Functional Outcomes of Peroneal Tendoscopy in the Treatment of Peroneal Tendon Disorders


      The purpose of this study was to evaluate clinical outcomes following peroneal tendoscopy in treating peroneal pathology. Additionally we assessed the correlation between peroneal tendoscopic findings and pre operative MRI diagnosis of peroneal tendon pathology.


      Twenty-three patients with a mean age of 34±8.8 years undergoing peroneal tendoscopy were pre- and post operatively assessed with the Foot and Ankle Outcome Score (FAOS) and the Short Form-12 (SR-12). Follow-up was over 24 months in all patients. In comparison with peroneal tendoscopy, sensitivity and specificity for MRI was calculated, as well as the positive likelihood ratio.


      Both the FAOS and the SF-12 improved significant from preoperatively to final evaluation at a mean follow-up of 33 ±7.3 months, respectively p<0.01 and p=0.01. MRI showed an overall 90 (95% CI 82-95)% sensitivity and 72 (95% CI 62-80)% specificity. The positive likelihood ratio for MRI diagnosis of peroneal tendon pathology was 76 (95% CI 68-83).


      Intraoperative findings by tendoscopy are highly correlated with preoperative MRI diagnosis and the high Positive Predictive Value indicated that MRI is a useful diagnostic method in the evaluation of peroneal tendon pathologies. Peroneal tendoscopy provides good outcomes in the treatment of peroneal tendon pathologies. Therefore, tendoscopic evaluation and treatment of peroneal tendon pathologies is recommended when MRI suggests a peroneal tendon pathology.