ISSN:
1433-7347
Keywords:
Key words Knee joint
;
Free nerve ending type IVa
;
Nociceptor
;
Medial capsuloligamentous complex
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
,
Sports Science
Notes:
Abstract Free nerve endings (FNEs) of type IVa play a distinctive role in the articular nociceptive and sensorimotor system of the knee. This study qualitatively and quantitatively analyzed FNEs in the medial and posteromedial capsuloligamentous complexes. Biopsy specimens from ten precisely defined anatomical locations were taken from seven fresh cadaver knee joints. The specimens were fixed with 4% formaldehyde solution and stained with hematoxylin-eosin. The results were examined using immunohistochemistry. The occurrence of FNEs is described in combination with their specific pattern of distribution. A high number of FNEs were found in all investigated elements with a maximum relative density in the insertion of the semimembranosus muscle in the direct attachment on the tibial margin. The number was lowest in the superficial medial collateral ligament. The results were correlated with anatomical and biomechanical functions of the stabilizing effect of the medial capsuloligamentous complex. Our findings indicate that lesions and surgical procedures can alter normal sensory feedback and coordination by modifying the use of muscle fiber during specific movements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001670050188
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