The simultaneous traumatic rupture of the patellar tendon and the quadricipital tendon is a rare lesion entity. We report the case of a bipolar rupture of the extensor knee system in a young adult following sports traumatism. Magnetic Resonance Imaging allowed the assessment of associated lesions. The management of this "floating" kneecap was surgical associated with rehabilitation. A functional assessment at 02 years of follow-up was performed. The functional prognosis is related on the one hand to the difficulties of positioning of the patella and on the other hand to the associated lesions (meniscus-ligamentous knee injuries).

Defined as a continuity solution on the muscular-osseous-tendinous chain of the knee, ensuring the extension of the leg on the thigh, the traumatic rupture of the knee's extensor apparatus is often reported in literature. They are dominated by patellar fractures. The patellar or quadricipital tendon damage is rare and even exceptional in a bilateral topography. The aim of this work was to highlight the clinical case of bilateral rupture of the patellar tendon of late diagnosis, occurring in an adult with a particular field. It was an adult, who presented a bilateral rupture of the knee extensor apparatus following a minimal traumatism. Anamnesis found a chronic kidney disease correctly follow-up. The diagnosis was delayed so was the surgical management (Krackow's technique and protection by a metallic frame). At 8 months post surgery the functional result is acceptable. The bilateral rupture of the patellar tendon stays a rare pathologic entity, which always seems associated at a particular field. The diagnosis delay (and so did the care) is an important bad prognosis factor. Treatment of this old form (unknown) is exclusively surgical.

Introduction: Hip disarticulation (HD) consists of a removal of the entire lower limb at the height of the hip-femoral joint. It is an extremely mutilating intervention with a major functional and psychological impact. We report 11 cases of hip disarticulation following severe trauma of the lower limb. The aim of the study is to analyze the frequency, the clinical aspect and present their management results and the patients' becoming. Patients and methods: A 13-year retrospective study was conducted in our traumatology department.

Myositis ossificans circumscribed is a bone and cartilage heterotopic non neoplastic proliferation inside the soft tissues. It is a benign focal heterotopic ossification process of soft tissues, and a rare disorder that occurs spontaneously or after local trauma. Clinical and radiographic appearances are quite hustler. A careful histological examination of biopsy straightens diagnosis is necessary. There is no consensus in support (surgical or/and medical). From Benign prognosis, evolution of this pathology is usually favorable. The authors report a case of giant myositis ossificans circumscribed post-traumatic localized on gluteus and adductor muscles of the right hip on a 26-year-old man. Through a review of literature the mechanism, the diagnostic methods and therapeutic will be discussed.

Report case: A 30-year-old patient presented knee pain associated with swelling of the distal third of the thigh as a result of a sports trauma. The diagnosis of a Brodie's abscess was made. Surgical treatment combined with antibiotic therapy was performed. The evolution was favourable. Conclusion: Brodie's abscess is a subacute osteomyelitis that can pose a diagnostic problem with bone tumors. Magnetic Resonance Imaging has a place in the diagnosis. Patient management must be multidisciplinary.