[Genetic hypothesis involving Haglund's syndrome and its association with ankylosing spondylitis: case report].

Haglund´s syndrome is characterized by osterosuperior calcaneal exostosis which irritates the Achilles tendon and manifests mainly as posterior talalgia. We here report the case of a 28-year-old woman on follow up for ankylosing spondylitis. Her mother was on follow up for the same systemic disease, and one of her maternal aunts had undergone surgery due to Haglund's syndrome.

[Role of centro-medullary nailing in fractures of the distal quarter of the leg: about 30 cases].

The fractures of the distal quarter of the leg are characterized by fracture line located at the level of the lower quarter of the tibia, according to Gerard and Evrard definition [1]. They are serious and pose problems for consolidation, immobilization and stability. We here describe our experience in the Department of Orthopaedics and Traumatology at the Avicenne Military Hospital, Marrakech.

[Villonodular synovitis of the knee: about 20 cases].

Pigmented villonodular synovitis (PVNS) is a rare benign proliferation of synovial joints, serous bursa, tendinous sheaths of unknown etiopathogeny. We here report 20 cases of PVNS of the knee recorded at the Avicenne Military Hospital, Marrakech over a period of 9 years, from January 2000 to December 2009. This study aimed to identify the specific features of this lesion and to examine its anatomoclinic and prognostic aspects.

[Role of Hackethal bundle nailing in the treatment of humerus fractures: about 80 cases].

The main debate regarding humerus fractures focuses on their therapeutic indications because any type of orthopedic or surgical stabilization finds unconditional and sometimes vehement defenders. We conducted a retrospective study of 80 patients treated initially with Hackethal's technique of intramedullary bundle nailing in the Department of Orthopaedics and Traumatology at Avicenne Military Hospital between January 2000 and January 2012. The fractures were classified according to AO classification and Hackethal classification (modified by De La Caffinière).