[An unusual cause of tarsal tunnel syndrome in a 15-year-old girl: about a case]. / Cause inhabituelle de syndrome du canal tarsien chez une fille de 15 ans: à propos d'un cas.

Tarsal tunnel syndrome is a multifaceted condition caused by the compression or lesion of the posterior tibial nerve (PTN) that passes through a retromalleolar osteofibrous canal, the so-called tarsal tunnel. It has multiple etiologies, including peripheral nerve tumors, which must be suspected when this syndrome is resistant to medical treatment and infiltrations. We here report the original case of a 15-year-old girl presenting with tarsal tunnel syndrome revealing neurofibroma of the PTN, misdiagnosed as plantar fasciculitis and S1 radiculopathy.

[Corrigendum: Meryem Lemsanni et al. Sub- and intercondylar fractures of the distal humerus in adults doi: 10.11604/pamj.2020.36.346.24516]. / Corrigendum: Meryem Lemsanni et al. Fractures sus et inter-condyliennes de l'humérus distal chez l'adulte doi: 10.11604/pamj.2020.36.346.24516.

[This corrects the article DOI: 10.11604/pamj.2020.36.346.24516.].

[Sub- and intercondylar fractures of the distal humerus in adults]. / Fractures sus et inter-condyliennes de l'humérus distal chez l'adulte.

INTRODUCTION: complete joint fractures of the lower end of the humerus are rare and severe injuries in adults, affecting the functional prognosis of a narrow and complex joint such as the elbow. Multiple therapeutic options are available, but osteosynthesis is widely used provided that it can recover stable, mobile, and painless joint. The purpose of our study was to describe the epidemiological, clinical, radiological and therapeutic features of these fractures, as well as to evaluate functional outcomes in our patients. METHODS: we conducted a 3-year prospective study (January 2014-December 2016) of 38 patients older than 16 years admitted with complete sub- and intercondylar joint fracture of the lower extremity of the humerus (classified as type C according to the AO classification). They underwent surgery via transolecranian posterior approach with fixation of one or two screw plates based on anatomopathological diagnosis. Patients were followed-up for a mean period of 34 months. RESULTS: these conditions had bimodal distribution, affecting young male subjects on the one hand and elderly female subjects on the other. The main cause of fractures was road accidents (78%). During the follow-up period, one case had superficial surgical site infection and there were no cases of dismantling of equipment or pseudarthrosis. No complications after osteosynthesis for olecranon fractures were recorded in our case series. Stiffness at the elbow-joint was defined as bending/extension arc less than 50°; elbow stiffness was found in 25% of patients. Functional results were assessed using the Mayo-Clinic or Mayo-Clinic Elbow Performance Score (MEPS) with an average score of 86. Conclusion: based on our results, transolecranon posterior approach is the best option for these fractures, since it allows good joint exposure. This is essential for perfect anatomical restitution and stable osteosynthesis in order to undertake early and adapted rehabilitation.

Primary hydatid cyst of the thigh: on seven cases.

We report on seven cases that presented a benign soft-tissue mass in the thigh muscles. Ultrasonography provided the diagnosis of hydatid cyst. Total pericystecomy was performed. We point out the importance of preoperative diagnosis and the need for radical excision to avoid recurrence.

Bilateral osteonecrosis of the femoral head after pregnancy.

Published cases of non-traumatic avascular necrosis of the femoral head associated with pregnancy are rare. We report a case of a 41-year-old woman who suddenly complained of bilateral hip pain 3 weeks after delivery by Caesarean section. For a problem of sterility, she had been treated with human menopausal gonadotropin and human chorionic gonadotropin (hMG-hCG). Initial radiographs of both hip joints were considered regular. After 4 years' evolution, radiographs of the hip joint showed collapse of both femoral heads. Bilaterally, osteonecrosis of the femoral heads was confirmed by MRI. MRI revealed a band pattern of low signal intensity for both hips on T1- and T2-weighted images. She had no history of steroid therapy or alcohol abuse. Osteonecrosis was related to pretentaine. A bilateral total hip arthroplasty was performed. The literature about avascular necrosis of the femoral head associated with pregnancy in previous cases is reviewed.