Tendon and fascial structure contributions to knee muscle excursions and knee joint displacement

Abstract Background Semitendinosus and gracilis muscles whose tendons are used in surgical reconstruction of the anterior cruciate ligament maintain their contractile ability, and a limited decrease of hamstring muscles force is observed postoperatively despite important changes. The goal was to qua...

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Bibliographic Details
Published in:Clinical biomechanics (Bristol) 2014-11, Vol.29 (9), p.1070-1076
Main Authors: Snoeck, O, Beyer, B, Feipel, V, Salvia, P, Sterckx, J.-L, Rooze, M, Van Sint Jan, S
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Analysis of Variance
Anterior cruciate ligament
Anterior Cruciate Ligament - physiopathology
Anterior Cruciate Ligament - surgery
Biomechanical Phenomena - physiology
Cadaver
Connective tissue
Fascia
Fascia - physiopathology
Female
Femur
Hamstrings harvesting
Humans
Joint Instability - physiopathology
Knee Joint - physiopathology
Knee Joint - surgery
Male
Moment arms
Muscle Contraction - physiology
Muscle, Skeletal - physiopathology
Physical Medicine and Rehabilitation
Tendons - physiopathology
Tendons - surgery
Tibia
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Summary:Abstract Background Semitendinosus and gracilis muscles whose tendons are used in surgical reconstruction of the anterior cruciate ligament maintain their contractile ability, and a limited decrease of hamstring muscles force is observed postoperatively despite important changes. The goal was to quantify the influence of the myofascial structures on excursions and moment arms of knee muscles to attempt explaining the above-mentioned post-surgical observations. Methods Hamstring harvesting procedures were performed by a senior orthopaedic surgeon on seven lower limbs from fresh-frozen specimens. Femoro-tibial kinematics and tendons excursion were simultaneously recorded at each steps of the surgery. Findings No significant difference was demonstrated for excursions and moment arms after tenotomies and gracilis tendon harvesting ( P ≥ 0.05). The first significant semitendinosus excursion ( P < 1.17 × 10 − 4 ) and moment arm ( P < 6.88 × 10 − 5 ) decrease was observed after semitendinosus tendon harvesting (46% of the initial excursion). Interpretation Gracilis and semitendinosus myofascial pathway is crucial for force transmission towards the knee joint.
ISSN:0268-0033
1879-1271
DOI:10.1016/j.clinbiomech.2014.08.003