title: Muscle weakness after anterior cruciate ligament reconstruction using patellar and quadriceps tendons.
abstract: Eighty-five knees of 85 patients who underwent anterior cruciate ligament reconstruction with autologous patellar and quadriceps tendon grafts were followed for 3-7 years. Hamstrings strength improved to normal. Quadriceps strength in men returned to the preoperative level, but not to normal strength. Quadriceps strength in women, at the final follow-up, was significantly less than it had been preoperatively. This weakness may be a consequence of impairment of the knee extensor mechanism resulting from harvesting the graft. Although favorable postoperative stability of the knee was obtained, we do not recommend this technique for ACL reconstruction because of the quadriceps weakness.
authors.affiliation: Department of Orthopaedics, Hokkaido School of Medicine, University Hospital, Sapporo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Yasuda
authors.forename: Y
authors.initials: Y
authors.lastname: Ohkoshi
authors.forename: Y
authors.initials: Y
authors.lastname: Tanabe
authors.forename: K
authors.initials: K
authors.lastname: Kaneda
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D008297:Male; D009119:Muscle Contraction; D009123:Muscle Hypotonia / Q000209:etiology*; D011183:Postoperative Complications / Q000209:etiology; D013710:Tendons / Q000637:transplantation*; D014182:Transplantation, Autologous