Clinical outcomes of all-inside arthroscopic partial muscle belly resection for flexor hallucis longus tendon impingement syndrome
Feng Shiming1,2, Wang Aiguo1
1Department of Orthopaedic, Xuzhou Central Hospital, Xuzhou 221009, China; 2Department of Rehabilitation Center, Xuzhou Central Hospital, Xuzhou 221009, China
Abstract：Objective This study aims to investigate the surgical technique and the clinical results of the all-inside hindfoot arthroscopic treatment of the flexor hallucis longus tendon impingement syndrome. Methods The data of the 27 patients with flexor hallucis longus tendon impingement syndrome (27 feet, 17 males [17 feet] and 10 females [10 feet]; aged 19-45[28.78 ± 7.85] years) treated with the all-inside arthroscopy and had complete follow-up data in Xuzhou Central Hospital from January 2016 to October 2018 were retrospectively analyzed. The right and the left sides were involved in 15 and 12 cases (feet), respectively. The mean disease duration from the specialist doctor intervention to operation was (18.33±7.74) months (range: 6-41 months). The preoperation visual analog pain scale (VAS), American Orthopaedic Foot & Ankle Society (AOFAS) ankle hindfoot scale and Karlsson Ankle Functional Score (KAFS) were used to evaluate the function. Results All cases achieved healing of the wound without postoperative nerve, vessel, and tendon complications. All patients were followed up for 8-41 months (25.37±9.07) months. At the final follow-up, complete pain relief and normal hallucis and ankle activity were recorded. The mean VAS, AOFAS, and KAFS were 0, 98.15±2.38, and 98.41±1.45, respectively. According to the AOFAS, 26 patients achieved excellent rating, and 1 patient achieved good rating. All above functional scores postoperation were significantly improved compared with those preoperation (all P values<0.05). Conclusions The all-inside hindfoot arthroscopic treatment of the flexor hallucis longus tendon impingement syndrome is an effective, minimally invasive, and precise treatment procedure and provides satisfactory results.
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2021, Vol. 26 
