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A NOVEL METHOD FOR DEBRIDEMENT OF THE MEDULLARY CANAL IN OSTEOMYELITIS OF THE TIBIA AND FEMUR



Abstract

Intramedullary infection is a challenging problem and management usually includes removal of the infected hardware and reaming of the medullary canal.

The purpose of this study is to describe a new technique for canal debridement and evaluate its efficacy in the treatment of posttraumatic osteomyelitis of the tibia and femur.

This retrospective study included 11 patients (10 male and 1 female, mean age: 42 years) with posttraumatic osteomyelitis of the tibia (n=8) or femur (n=3). Surgical treatment consisted of debridement, implant removal, and reaming of the medullary canal with the RIA (Reamer Irrigator Aspirator) device. All procedures were performed by a single surgeon with a standardised technique. Reaming of the canal was performed with one pass of the RIA. Following reaming, the RIA was used for irrigation of the medullary canal with 10 liters of fluid.

At a mean follow-up time of 9 months (6 to 13 months) there was no recurrence of osteomyelitis. Complications included one partial loss of a flap, one refracture of a tibia following an auto versus pedestrian accident, and external fixator pin tract infections in one patient.

The RIA device allows for reaming under simultaneous irrigation and aspiration, which may minimise the residual amount of infected tissue in the medullary canal. The disposable reamer head is always sharp, in contrast to standard reamers, which may reduce the thermal effects of reaming on the adjacent bone. In addition, the RIA allows delivery of fluid throughout the length of the medullary canal, thus facilitating irrigation. The RIA device is useful alternative for debridement of intramedullary infections of the tibia and femur.



Correspondence should be addressed to Vasiliki Boukouvala at Department of Orthopaedic Surgery & Traumatology, University Hospital of Larissa, 110 Mezourlo, Larissa, GREECE. Tel: +30 2410 682722, Fax: +30 2410 670107, Email: malizos@med.uth.gr