title: Myxoid tumor associated to migration of a suspensory fixation device of a reconstructed anterior cruciate ligament: a case report.
abstract: A 16-year-old male who had undergone 6 months before an anterior cruciate ligament (ACL) reconstruction with an autologous hamstring graft fixed with a suspensory fixation device (XoButton device; ConMed Linvatec, Largo, FL), complained of a slightly painful mass in the distal posterolateral aspect of the thigh. The knee was otherwise stable. A 79 × 60 × 17 mm multilobulated tumor surrounding the implant device was observed in magnetic resonance images. The revision arthroscopy showed an intact ACL graft. The tumor was excised through a longitudinal posterolateral approach. It had a myxoid appearance. The undamaged implant was also removed. Two months after surgery, the patient was already asymptomatic. Although most fixation device problems occur in the perioperative period due to an inadequate technique which may lead to graft instability, this case reminds clinicians of the possibility of later developing clinically relevant complications with suspensory fixation devices.
authors.affiliation: Department of Orthopaedic Surgery, Hospital de Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.
authors.forename: Pablo Eduardo
authors.initials: PE
authors.lastname: Gelber
authors.affiliation: ICATME-Institut Universitari Dexeus, Universitat Autònoma de Barcelona, Barcelona, Spain.
authors.forename: Juan Ignacio
authors.initials: JI
authors.lastname: Erquicia
authors.affiliation: ICATME-Institut Universitari Dexeus, Universitat Autònoma de Barcelona, Barcelona, Spain.
authors.forename: Xavier
authors.initials: X
authors.lastname: Pelfort
authors.affiliation: ICATME-Institut Universitari Dexeus, Universitat Autònoma de Barcelona, Barcelona, Spain.
authors.forename: Marc
authors.initials: M
authors.lastname: Tey
authors.affiliation: Department of Orthopaedic Surgery, Hospital de Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Monllau
mesh_terms: D000293:Adolescent; D059549:Anterior Cruciate Ligament Reconstruction / Q000295:instrumentation*; D005548:Foreign-Body Migration / Q000175:diagnosis* / Q000601:surgery; D045888:Ganglion Cysts / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009984:Orthopedic Fixation Devices / Q000009:adverse effects*; D013709:Tendon Transfer / Q000295:instrumentation; D014182:Transplantation, Autologous