title: Extra-articular extraosseous migration of a bioabsorbable femoral interference screw after ACL reconstruction.
abstract: Anterior cruciate ligament (ACL) reconstruction is quite commonly used to treat anterior knee instability. Surgeon preference and patient functional goals determine graft selection and graft fixation techniques. Interference screws are considered a safe and effective device for graft fixation in surgical ACL reconstruction. Poly-L-lactide acid (PLLA) bioabsorbable interference screws are becoming increasingly popular in ACL reconstruction surgery. There are several reasons why they may be more advantageous than metallic screws, including reduced graft laceration during insertion, ease of performance of revision procedures, avoidance of graft injury encountered with aperture fixation using metallic screws, and fewer artifacts on magnetic resonance images (MRI). Few studies describe complications associated with PLLA bioabsorbable screws, particularly extra-articular screw migration. This article presents a case of an extra-articular extraosseous migration of the femoral bioabsorbable interference screw. This case further demonstrates the problem of the femoral bioabsorbable interference screw.
authors.affiliation: Orthopedic Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, OH 45229, USA.
authors.forename: Vivek
authors.initials: V
authors.lastname: Sharma
authors.forename: Christine
authors.initials: C
authors.lastname: Curtis
authors.forename: Lyle
authors.initials: L
authors.lastname: Micheli
mesh_terms: D020341:Absorbable Implants / Q000009:adverse effects*; D000293:Adolescent; D016118:Anterior Cruciate Ligament / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D001490:Basketball / Q000293:injuries*; D001863:Bone Screws / Q000009:adverse effects*; D005260:Female; D005269:Femur / Q000601:surgery*; D005548:Foreign-Body Migration / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D007718:Knee Injuries / Q000150:complications / Q000601:surgery; D019651:Plastic Surgery Procedures / Q000009:adverse effects / Q000295:instrumentation