title: Surgical treatment of combined posterior root tears of the lateral meniscus and ACL tears.
abstract: BACKGROUND
  The treatment of anterior cruciate ligament (ACL) rupture complicated with posterior lateral meniscus root (PLMR) tears remains controversial. The goal of this study was to evaluate clinical outcomes of PLMR tear refixation versus left untreated at the time of reconstruction.
  
  
  METHODS
  From August 2001 to January 2012, 31 patients who undergone repair of PLMR tears were evaluated and compared with a matched control group with untreated PLMR tears. Clinical evaluation consisted of the Lysholm scale, subjective International Knee Documentation Committee (IKDC) questionnaires, and radiographic evaluation with MRI.
  
  
  RESULTS
  Regarding to the Lysholm score and the subjective questionnaire score, there were no statistical difference between the 2 groups. However, patients after operative treatment reach higher functional scores and lower rates of osteoarthritis (normal: group A, 80%, and group B, 48%, respectively) with statistical significance (P<0.05) compared to the matched control group.
  
  
  CONCLUSIONS
  Surgical and conservative treatment of the PLMR can both effectively improve knee function. However, a tendency towards higher functional scores and lower rates of osteoarthritis for patients with operative treatment was observed.
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army 107 Hospital, Yantai, Shandong, China (mainland).
authors.forename: Fengyu
authors.initials: F
authors.lastname: Pan
authors.affiliation: Department of Radiology, Haigang Hospital, Yantai, Shandong, China (mainland).
authors.forename: Shan
authors.initials: S
authors.lastname: Hua
authors.affiliation: Department of Orthopedics, Chinese People's Liberation Army 107 Hospital, Yantai, Shandong, China (mainland).
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Ma
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery; D000070598:Anterior Cruciate Ligament Injuries; D059549:Anterior Cruciate Ligament Reconstruction / Q000379:methods* / Q000534:rehabilitation; D001182:Arthroscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007718:Knee Injuries / Q000534:rehabilitation / Q000601:surgery*; D008297:Male; D008592:Menisci, Tibial / Q000601:surgery*; D010003:Osteoarthritis / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control; D020127:Recovery of Function; D012189:Retrospective Studies; D012421:Rupture / Q000601:surgery; D000070600:Tibial Meniscus Injuries; D015599:Trauma Severity Indices; D016896:Treatment Outcome; D055815:Young Adult