Modified posterior fibular groove deepening procedure with repair of the superior peroneal retinaculum for peroneal tendon subluxation

Purpose To evaluate the clinical results of modified peroneal sulcus deepening combined with superior peroneal retinaculum repair in peroneal tendon subluxation treatment. Methods From 2016 to 2020, 18 patients with peroneal tendon subluxation were diagnosed and treated; all patients underwent modified peroneal sulcus deepening combined with superior peroneal retinaculum repair. The visual analogue scale (VAS) score, American Orthopaedic Foot and Ankle Society ankle-hindfoot (AOFAS-AH) score, and subjective patient satisfaction were evaluated before surgery and during follow-up. Results The operative time was 66.44 ± 5.22 min. All patients' surgical incisions showed grade A healing, and there were no complications. All patients were followed up for 24–48 months; no patients were lost to follow-up. At the last follow-up, the VAS and AOFAS-AH scores were significantly improved compared with those pre-operatively (P < 0.05). There was no significant difference in the activity of the 18 patients between pre- and post-operatively, and all patients recovered their normal gait before injury. Conclusion Modified fibular groove deepening combined with superior peroneal retinaculum repair for treating peroneal tendon subluxation may be a simple operation with minimal trauma, rapid recovery, and good clinical efficacy.