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Abstract Background Soft-tissue sarcomas (STS) are rare in hand and foot. In this paper we present a case of reconstruction of Achilles tendon defect with peroneus brevis transfer reinforced with medial gastrocnemius fascia and plantaris tendon after excision of a local recurrence of epithelioid sarcoma. Case presentation Fifty-five years-old female. MRI showed a lump of 5 × 2,5 × 2 cm into Achille’s tendon with invasion of the anterior fat tissue but no invasion of the surrounding bones. The patient underwent excision of the tumour and reconstruction of the tendinous defect with peroneus brevis transfer. Surgical technique has been widely described. Discussion and conclusions Epithelioid sarcoma arising from the Achilles tendon is an extremely rare malignant tumour in an atypical site and may easily be confused with other soft tissue masses. It presents a technical challenge because of the large tendon defect remaining following wide resection. Reconstruction with peroneus brevis transfer, reinforced with medial gastrocnemius fascia and plantaris tendon, restore appropriate structural continuity and resistance. Functional results are satisfactory.

Abstract Purpose The aim is to compare the results of isolated hip arthroscopy in patients with borderline dysplasia with Lateral center edge angle (LCEA) between 18° and 25° with a control group of patients with normal LCEA (> 25°). Methods Fifty hip arthroscopies performed in 45 patients were retrospectively evaluated. Exclusion criteria were: age > 40, hip arthritis > grade 2 according to Tonnis classification, femoral head avascular necrosis, pediatric’s orthopaedics conditions and true dysplasia with LCEA 25°. Results The groups were homogeneous for demography and pre‐operative WOMAC and HOOS. Osteoplasty for CAM were performed in 100% of patients in both groups, only in 12 hips (34.4%) in group B we had both femoral and acetabular osteoplasty. Labral repair was performed in 86% of patients in group A, in 60% of patients in group B, capsular plication in 93% of group A, in 5% of case of group B. WOMAC and HOOS statically significant improved in both groups at final follow‐up (24 months). No cases in both groups required conversion to total hip arthroplasty. Clinical outcomes of study group were comparable to the control group. Conclusion Even if the present small series is not conclusive, we suggest isolated arthroscopic management of patients with FAI and LCEA between 18° and 25°, but capsular plication and careful labral management are strongly recommended. Level of evidence Level IV.