Two years neglected knee dislocation: An unusual case report.

INTRODUCTION: Traumatic dislocation of the knee is a rare and severe injury, often caused by a severe trauma. Neglected knee dislocations are much more uncommon and treatment options are not clearly described. PRESENTATION OF CASE: We reported the case of a 26-year-old man with two years neglected knee dislocation which was managed with open reduction and stabilization with external fixation and intra-articular Steinman pins for six weeks. DISCUSSION AND CONCLUSION: Knee dislocations are rare injuries that can be underestimated during the emergency assessment, particularly in the absence of neurovascular injuries, which usually lead to surgical treatment, or the presence of severe trauma that disguises dislocation as the case for our patient. Only a high clinical suspicion can avoid neglecting the more severe joint injury.

Intra-articular lipoma arborescens of the knee: A report of two cases with bilateral localization.

INTRODUCTION: Lipoma arborescens is a very rare pseudo-tumoral lesion of unknown etiology, characterized by lipomatous infiltration of subsynovial stroma, bilateral involvement is exceptional, only eight cases are reported in the literature. PRESENTATION OF CASE: We report the very rare case of two men presented at our department with complaints of swelling of both knees and intermittent joint effusion, Surgical biopsy revealed Lipoma arborescens in both cases. Open total synovectomy was performed. Follow-up evaluation showed no signs of recurrence. DISCUSSION AND CONCLUSION: Lipoma arborescens is a rare entity, the unilateral form affecting the knee is the most common, with a predilection for suprapellar recess. Magnetic resonance imaging (MRI) is the examination of choice showing multiple villous proliferation of the synovium and fat-like cells, with a fatty signal on all sequences. Treatment by open or arthroscopic synovectomy offers the best outcomes.