Abstract
The mechanics of the knee was analyzed in the sagittal plane to study effects on patellar tendon force as influenced by placement of external flexing loads on the tibia and by translation of the tibial bone 7 mm anterior to the femoral bone during the flexion range 0–120°. Anatomical parameters and measurements for orientations and moment arms of the patellar tendon during the flexion range were estimated from experiments on cadaver knees available in the literature.
The analysis suggests that the force in the patellar tendon varies directly with the distance of external flexing load placed distal to the tibial surface. This effect is uniform throughout the joint flexion range. Further, 7 mm anterior translation of the tibia relative to the femur resulted in significantly reduced anterior component of net shear force for all flexion positions and all placements of loads distal to the joint line. This has relevance to ACL-deficient knees where large tibial translations may be necessary to compensate for the deficiency (ACL is anterior cruciate ligament).
Two critical factors that may require special attention to protect the ACL during rehabilitation exercises are the flexion angle and the position of flexing load below the tibial surface.
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References
Masouros, S.D., Bull, A., Amis, A.: Biomechanics of the knee joint. Orthop. Trauma 24(2), 84–91 (2010)
Herzog, W., Read, L.J.: Lines of action and moment arms of the major force-carrying structures crossing the human knee joint. J. Anat. 182, 213–230 (1993)
Imran, A.: Analyzing the patellar tendon force during quadriceps muscle exercise. Lecture notes in engineering and computer science: proceedings of the world congress on engineering 2014, WCE 2014, pp. 1313–1316. London, 2–4 July 2014
Imran, A.: Analyzing the role of patellar tendon force during flexion of the knee. Lecture notes in engineering and computer science: proceedings of the world congress on engineering 2013, WCE 2013, pp. 1929–1932. London, 3–5 July 2013
Imran, A., Huss, R., Holstein, H., O’Connor, J.: The variation in the orientations and moment arms of the knee extensor and flexor muscle tendons with increasing muscle force: a mathematical analysis. J. Engg. Med. 214(H), 277–286 (2000)
Krevolin, J.L., Pandy, M.G., Pearce, J.C.: Moment arm of the patellar tendon in the human knee. J. Biomech. 37(5), 785–788 (2004)
O’Brien, D.T., Reeves, N.D., Baltzopoulos, V., Jones, D.A., Maganaris, C.N.: Moment arms of the knee extensor mechanism in children and adults. J. Anat. 215, 198–205 (2009)
Stagni, R., Fantozzi, S., Catani, F., Leardini, A.: Can patellar tendon angle reveal sagittal kinematics in total knee arthroplasty? Knee Surg. Sports Traumatol. Arthrosc. 18(7), 949–954 (2010)
Sellis, E.K., Baltzopoulosb, V.: In vivo determination of the patella tendon and hamstrings moment arms in adult males using videofluoroscopy during submaximal knee extension and flexion. Clin. Biomech. 14, 118–124 (1999)
Tsaopoulos, D.E., Baltzopoulos, V., Richards, P.J., Maganaris, C.N.: In vivo changes in the human patellar tendon moment arm length with different modes and intensities of muscle contraction. J. Biomech. 40(15), 3325–3332 (2007)
Mommersteeg, T., Blankevoort, L., Huiskes, R., Kooloos, J., Kauer, J.: Characterization of the mechanical behavior of human knee ligaments: a numerical-experimental approach. J. Biomech. 29(2), 151–160 (1996)
Klass, D., Toms, A.P., Greenwood, R., Hopgood, P.: MR imaging of acute anterior cruciate ligament injuries. Knee 14, 339–347 (2007)
Unsworth, A., Dowson, D., Wright, V.: Some new evidence on human joint lubrication. Ann. Rheum. Dis. 34, 277–285 (1975)
Deluzio, K.J., Wyss, U.P., Zee, P., Costigan, P.A., Sorbie, C.: Principal component models of knee kinematics and kinetics: normal vs. pathological gait patterns. Hum. Mov. Sci. 16, 201–217 (1997)
Collins, J.J., O’Connor, J.: Muscle-ligament interactions at the knee during walking. Proc. Inst. Mech. Eng. H J. Eng. Med. 205, 11–18 (1991)
Nakhaee, K., Farahmand, F., Salarieh, H.: Studying the effect of kinematical pattern on the mechanical performance of paraplegic gait with reciprocating orthosis. Proc. Inst. Mech. Eng. H J. Eng. Med. 226(8), 600–611 (2012)
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This work was supported by research fund provided by the College of Engineering at Ajman University of Science & Technology, Ajman, UAE.
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Imran, A. (2015). Influence of Tibial Translation on Estimates of Patellar Tendon Force During Knee Flexion. In: Yang, GC., Ao, SI., Gelman, L. (eds) Transactions on Engineering Technologies. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-9804-4_12
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DOI: https://doi.org/10.1007/978-94-017-9804-4_12
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