Case report: A rare case of pure tibio-talar dislocation without malleolar clamp fracture in a young athlete: Long-term functional results and recent reviews of the literature.

INTRODUCTION AND IMPORTANCE: Ankle dislocation without fracture is an extremely rare injury, requires high-energy trauma, up to 1995, only 73 cases were reported in the literature and 154 cases up to 2017. It is therefore a post-traumatic ankle disease growing in parallel with the increase in road-traffic accidents requiring the study of incriminated factors such as hypoplasia of the medial malleolus. CASE PRESENTATION: The authors report the case of a young patient, a football player, who presented with a pure, closed dislocation of his ankle following a road-traffic accident. Management consisted of immediate reduction, followed by immobilization in plaster for 1 month, CLINICAL DISCUSSION: The short, medium and long term clinical and radiological results are excellent with no evidence of ankle instability or osteoarthritis. CONCLUSION: Ankle dislocation without associated fracture is an extremely rare injury. The posteromedial dislocation represents the most described variety in the literature. Early management, short-term immobilization, adapted and early rehabilitation seem to be associated with good long-term functional results.

[Osteoid osteoma of the upper extremity of the radius: rare localization and literature review (about a case)]. / L'ostéome ostéoïde de l'extrémité supérieure du radius: localisation rare et revue de la littérature (à propos d'un cas).

Osteoid osteoma is a benign but painful bone tumor whose treatment is based on complete surgical resection. We here report the case of a young patient with osteoid osteoma of the upper extremity of the radius through a literature review.

The majority of conversion total hip arthroplasties can be considered a primary replacement: a matched cohort study.

BACKGROUND AND STUDY AIMS: The success of conversion total hip arthroplasty (THA) among primary THA and revision THA remains unclear. We hypothesized that most conversion THA's can be performed using primary implants and will have an uncomplicated post-operative course. MATERIALS AND METHODS: Thirty-six patients (23 females, mean age 68,0y) who underwent conversion THA for failed interventions for proximal femur fractures in the period 2008-2018 were matched sequentially against patients of the same sex and age who underwent primary THA or revision THA. Data were collected on implants used, major complications, and mortality. PROMs used included the Western Ontario and McMaster Osteoarthritis Index, Harris Hip Score, Visual Analogue Scale and the EQ-5D Health Questionnaire. RESULTS: Seventy-two percent of patients who underwent conversion THA were treated with primary implants and never suffered from a major complication. PROMs were excellent for this group of patients. The distinction primary/conversion/revision THA could not explain differences in outcomes; however, the necessity of using revision implants and the development of major complications could. CONCLUSIONS: The majority of conversion total hip arthroplasties can be considered a primary replacement. Predicting outcomes for THA should focus on patient frailty and technical difficulties dealing with infection, stability and loss of bone stock and should discard the conversion versus revision terminology.

Sclerosing epithelioid fibrosarcoma: rare and serious.

Sclerosing Epithelioid Fibrosarcoma (SEF) is a rare form of soft tissue sarcoma. It is characterized by a slow evolution, with local recurrences and late metastases that are mainly pulmonary and pleural in about 50% of cases. The treatment is based on the surgery which must be as wide as possible. The efficacy of adjuvant therapy in the control of SEF is not yet demonstrated. Chemotherapy is used in recurrences, some have also proposed radiotherapy. Long-term follow-up of patients with SEF is therefore essential.

[Patellar tendon rupture with distal closed fracture of the ipsilateral femur]. / Rupture du tendon rotulien avec fracture fermée distale du fémur homolatéral.

We here report the case of a 45-year old patient who had injured his right knee because of a road accident. The patient had right comminuted supracondylar femur fracture and ipsilateral patellar tendon rupture. This association is exceptional and no case has been reported in the literature. Targeted clinical and radiological diagnostic tests followed by early and suitable management based on internal osteosynthesis and suitable early functional rehabilitation enabled good long term outcome.

[A rare case of internal astragalo-scapho-calcaneal dislocation]. / Un cas rare de luxation astragalo-scapho-calcanéenne interne.

We here report the case of a young patient presenting with sports-related internal astragalo-scapho-calcaneal dislocation. The patient underwent orthopedic treatment with good clinical and radiological outcome.