Measurement of joint capsule tissue loading in the cat knee using calibrated mechanoreceptors

The vertical loading in the posterior capsule of the cat knee has been measured while the knee is rotated into hyperextension. Tissue loading was determined using a previously verified model of the capsule that represents its upper edge as a catenary suspension cable. Tensile loads in the cable were...

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Veröffentlicht in:	Journal of biomechanics 1989, Vol.22 (8), p.787-791
Hauptverfasser:	Hoffman, A.H., Grigg, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Biological and medical sciences Calibration Cats Female Fundamental and applied biological sciences. Psychology In Vitro Techniques Knee Joint - innervation Knee Joint - physiology Male Mechanoreceptors - physiology Models, Neurological Neurons, Afferent - physiology Rotation Skeleton and joints Space life sciences Stress, Mechanical Vertebrates: osteoarticular system, musculoskeletal system
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Beschreibung
Zusammenfassung:	The vertical loading in the posterior capsule of the cat knee has been measured while the knee is rotated into hyperextension. Tissue loading was determined using a previously verified model of the capsule that represents its upper edge as a catenary suspension cable. Tensile loads in the cable were measured using the discharge of mechanoreceptive sensory neurons that had been calibrated as load sensors. The results revealed that the capsule is very lightly loaded in extension rotations. Less than 4% of the applied moment is sustained by the capsule.
ISSN:	0021-9290 1873-2380
DOI:	10.1016/0021-9290(89)90062-6