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The anterolateral ligament of the human knee: an anatomic and histologic study.
MedLine Citation:
PMID:  21717216     Owner:  NLM     Status:  Publisher    
PURPOSE: The functional anatomy of the knee is frequently studied but remains incompletely understood. Numerous authors have described a structure in the lateral knee connecting the lateral femoral condyle with the lateral meniscus and tibial plateau. The goal of this study is to define the incidence, anatomy, and histology of this structure, the anterolateral ligament. METHODS: The incidence of the ligament was determined in 30 consecutive patients undergoing total knee arthroplasty (TKA) for medial compartment osteoarthritis. The anatomy and histology were evaluated using 10 cadaveric knees. RESULTS: The anterolateral ligament was noted to be present in all 40 knees. In all cases, it was noted to take origin near or on the popliteus tendon insertion and insert into the lateral meniscus and tibial plateau 5 mm distal to the articular surface and posterior to Gerdy's Tubercle. The average width of the relatively flat structure was 8.2 ± 1.5 mm, and the average length was 34.1 ± 3.4 mm. Histologic analysis revealed a discreet structure with a fibrous core surrounded by synovium. Fibers blended with the popliteus at its origin and with the lateral meniscus as it passed distally. CONCLUSIONS: The anterolateral ligament may play a role in preventing anterior tibial translation. The role, if any, of this structure in meniscal stability and the pathology of meniscal tears remain unclear. LEVEL OF EVIDENCE: Not applicable-Descriptive Anatomic Study.
Jean-Philippe Vincent; Robert A Magnussen; Ferittu Gezmez; Arnaud Uguen; Matthias Jacobi; Florent Weppe; Ma'ad F Al-Saati; Sébastien Lustig; Guillaume Demey; Elvire Servien; Philippe Neyret
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-30
Journal Detail:
Title:  Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA     Volume:  -     ISSN:  1433-7347     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9314730     Medline TA:  Knee Surg Sports Traumatol Arthrosc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Centre Hospitalier Universitaire Brest, Brest, France.
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