Abstract
Proximal interphalangeal joint arthrodesis for lesser toe deformity is commonly stabilised using a Kirschner wire passed through the tip of the toe. Recently, a number of all-inside intramedullary fusion devices have been developed, with the aim of decreasing infection risk through avoiding exposed metalwork. We report our early experience with Stayfuse™ (Nexa Orthopaedics).
Case records of patients undergoing Stayfuse™ proximal interphalangeal joint arthrodesis between July 2009 and November 2011 were examined. Twenty-eight Stayfuse™ proximal interphalangeal joint arthrodesis procedures in 14 patients were performed. Overall, 8 (29%) procedures required revision within 6 months. Of these, 3 (11%) intraoperative failures occurred, requiring immediate revision (Kirschner wire stabilisation or excision arthroplasty). All involved bending failure of the implant clip mechanism. A further 5 (18%) toes required revision procedures within 6 months of the index procedure, 3 (11%) for dissociation of the implant clip mechanism and 2 (7%) for periprosthetic fracture.
For patients perceived to be at higher risk of infective complications, all-inside stabilisation systems are an attractive concept. However, with 29% of patients undergoing revision procedures within 6 months, we question the safety of choosing Stayfuse™ implants over Kirschner wire stabilisation.
