[Mycobacterium xenopi osteoarthritis of the ankle in a patient followed for psoriatic rheumatism]. / Ostéo-arthrite de cheville à Mycobacterium xenopi chez une patiente suivie pour rhumatisme psoriasique.

BACKGROUND: Mycobacterium xenopi is an uncommon cause of osteoarticular sepsis. However, a recent series of M. xenopi spondylodiscitis emphasizes the potential risk after invasive procedures. CASE REPORT: A 33-year-old woman was followed for psoriasis rheumatoid arthritis. She had undergone several exploratory procedures including arthroscopy of the left ankle for invalidating joint disease. In 1999, M. xenopi arthritis and osteomyelitis was diagnosis in this joint. DISCUSSION: Sterilization and maintenance of surgical instruments must abide by rigorously controlled strict protocols. The benefit/risk ratio of invasive procedures in debilitated joints should be more precisely evaluated. Specific and repeated sample cultures should be performed to search for mycobacteria in all bone and joint infections, particularly in case of prior invasive procedures.

[Taloscaphoid arthrodesis and foot statics]. / Arthrodèse astragalo-scaphoïdienne et statique du pied.

The talo-navicular joint takes a part in both talocalcaneal and midtarsal joints's motion. Its arthrodesis produces all but suppression of subtalar joint motion. If there is surgical indication for deformed but flexible foot, better than a standard resectional subtalar arthrodesis, talo-navicular arthrodesis, with easy technique, is successful to maintain correction in right position, specially for valgus flat foot.