title: Posterior root tear of the medial meniscus in multiple knee ligament injuries.
abstract: The purposes of the present study were to examine the frequency and characteristics of root tears of the medial meniscus associated with ligament injuries of the knee and to evaluate the effectiveness of pull-out repair for restoring meniscus function. We retrospectively analyzed the 9 patients (10 knees) with posterior root tears of the medial meniscus and ligament injuries of the knee treated between August 2004 and February 2007. All the patients were male, with average age of 29.8 years, and the mean follow-up period was 29.7 months. The pull-out suture technique was used to repair the root tears. Clinical outcomes were evaluated using the Lysholm, IKDC, and Tegner scores, as well as the McMurray and Apley tests. The mean follow-up period was 41.1 months (range, 30 to 63 months). The incidence of root tears of the medial meniscus with ligament injuries was 2.74% (10 cases in 365 ligament surgeries). All clinical results showed significant improvement. At the final follow-up, McMurray test showed one positive and nine negative cases, and the Apley test revealed two positive and eight negative cases. There were no positive findings in anterior drawer test, posterior drawer test, valgus and varus stress test, and posterolateral instability test. Healing of the root tear was confirmed by arthroscopy in five patients and by MR in four patients. Root tears of the medial meniscus may occur in multiple knee ligament injuries. It is important not to miss them. Our results indicate that pull-out repair provides satisfactory results and evidence of healing.
authors.affiliation: Department of Orthopedic Surgery, Sports Medical Center, Seoul Paik Hospital, Inje University, Seoul, Republic of Korea.
authors.forename: Young Jae
authors.initials: YJ
authors.lastname: Kim
authors.forename: Jin Goo
authors.initials: JG
authors.lastname: Kim
authors.forename: Seok Hwan
authors.initials: SH
authors.lastname: Chang
authors.forename: Jae Chan
authors.initials: JC
authors.lastname: Shim
authors.forename: Sang Bum
authors.initials: SB
authors.lastname: Kim
authors.forename: Mi Young
authors.initials: MY
authors.lastname: Lee
mesh_terms: D000328:Adult; D016118:Anterior Cruciate Ligament / Q000473:pathology; D000070598:Anterior Cruciate Ligament Injuries; D006801:Humans; D007718:Knee Injuries / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D007719:Knee Joint / Q000473:pathology* / Q000601:surgery; D008023:Ligaments, Articular / Q000293:injuries / Q000473:pathology*; D008297:Male; D017888:Medial Collateral Ligament, Knee / Q000293:injuries / Q000473:pathology; D008592:Menisci, Tibial / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D016119:Posterior Cruciate Ligament / Q000293:injuries / Q000473:pathology; D016059:Range of Motion, Articular; D019651:Plastic Surgery Procedures / Q000379:methods*; D020127:Recovery of Function; D012189:Retrospective Studies; D013536:Suture Techniques; D000070600:Tibial Meniscus Injuries; D055815:Young Adult