Abstract
Controversies about the existence of accessory proximal popliteus muscle attachments can be found in the literature. The aim of this study was to verify the occurrence and width of popliteus attachments on the articular and periarticular structures of the knee joint. The relation of these attachments to tibiofemoral cartilage and meniscus degeneration was also investigated. Forty-two anatomical specimens were dissected. The incidence of accessory proximal attachments was determined and their width measured using a caliper. The fibular attachment of the popliteus was observed in 98% of cases; its mean width was 11 (SD 3) mm. At least one attachment on the lateral meniscus was found in 95% of the specimens, with a mean width of 6 (SD 2) mm. Three types of meniscal attachments of the popliteus could be identified. The severity of meniscus and tibiofemoral cartilage alterations was significantly related to the number of meniscopopliteal fascicles: more severe alterations were seen in knees with fewer meniscopopliteal fascicles. Popliteus attachments on the posterior knee joint capsule (57%), arcuate (90%) and oblique popliteal (79%) ligaments were also observed in most specimens. Popliteus muscle relationships with the posterior cruciate (5%) and meniscofemoral (33%) ligament were less common. In conclusion, accessory popliteus attachments on the fibula, lateral meniscus and arcuate popliteal ligament can be considered constant characteristics. The results of this study suggest a role of the popliteus in the protection of knee menisci and tibiofemoral cartilage. The French version of this article is available in the form of electronic supplementary material and can be obtained by using the Springer Link server located at http://dx.doi.org/10.1007/s00276-002-0093-7.
Résumé
Des controverses au sujet de l'existence des insertions proximales annexes du muscle poplité peuvent être trouvées dans la littérature. Le but de cette étude était de vérifier l'incidence et la largeur des insertions du muscle poplité sur les structures articulaires et péri-articulaires du genou. La relation de ces attaches à la dégénérescence du cartilage tibio-fémoral et des ménisques a également été étudiée. Quarante-deux préparations anatomiques ont été disséquées. L'incidence des insertions proximales annexes a été déterminée et leur largeur a été mesurée à l'aide d'un pied à coulisse. L'attache fibulaire du muscle poplité a été observée dans 98% des cas, sa largeur moyenne était de 11 mm (SD 2). Au moins une attache sur le ménisque latéral a été trouvée dans 95% des spécimens, avec une largeur moyenne de 6 mm (SD 2). Trois types de connexions méniscales du muscle poplité ont pu être identifiés. La sévérité des altérations des ménisques et du cartilage tibio-fémoral était significativement liée au nombre de fascicules ménisco-poplités: des altérations plus sévères étaient observées dans les genoux présentant moins de fascicules ménisco-poplités. Des attaches du muscle poplité sur la capsule articulaire postérieure du genou (57%) et les ligaments poplités arqué (90%) et oblique (de 79%) étaient aussi présentes dans la plupart des spécimens. Les rapports du muscle poplité avec les ligaments croisé postérieur (5%) et ménisco-fémoral (33%) étaient moins communs. En conclusion, les attaches annexes du muscle poplité sur la fibula, le ménisque latéral et le ligament poplité arqué peuvent être considérées comme des caractéristiques constantes. Les résultats de cette étude suggèrent un rôle du muscle poplité dans la protection des ménisques du genou et du cartilage tibio-fémoral.
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The French version of this article is available in the form of electronic supplementary material and can be obtained by using the Springer Link server located at http://dx.doi.org/10.1007/s00276-002-0093-7
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Feipel, V., Simonnet, ML. & Rooze, M. The proximal attachments of the popliteus muscle: a quantitative study and clinical significance. Surg Radiol Anat 25, 58–63 (2003). https://doi.org/10.1007/s00276-002-0093-7
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DOI: https://doi.org/10.1007/s00276-002-0093-7