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Microstructural analysis on the innervation of the anterior, medial, and lateral human hip capsule: Preliminary evidence on its neuromechanical contribution.
Tomlinson, Joanna C L; Zwirner, Johann; Oorschot, Dorothy E; Morawski, Markus; Ondruschka, Benjamin; Zhang, Ming; Hammer, Niels.
Afiliación
  • Tomlinson JCL; School of Anatomy, University of Bristol, Bristol, United Kingdom; Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, Otago, New Zealand. Electronic address: jcltomlinson@hotmail.co.uk.
  • Zwirner J; Institute of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Oral Sciences, University of Otago, Dunedin, Otago, New Zealand.
  • Oorschot DE; Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, Otago, New Zealand.
  • Morawski M; Paul Flechsig Institute for Brain Research, Medical Faculty, University of Leipzig, Leipzig, Saxony, Germany.
  • Ondruschka B; Institute of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
  • Zhang M; Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, Otago, New Zealand.
  • Hammer N; Division of Macroscopic and Clinical Anatomy, Gottfried Schatz Research Center, Medical University of Graz, Graz, Styria, Austria; Division of Biomechatronics, Fraunhofer Institute for Machine Tools and Forming Technology (Fraunhofer IWU), Dresden, Saxony, Germany; Department of Orthopaedic and Trau
Osteoarthritis Cartilage ; 31(11): 1469-1480, 2023 11.
Article en En | MEDLINE | ID: mdl-37574111
OBJECTIVE: Capsular repair aims to minimize damage to the hip joint capsular complex (HJCC) and subsequent dislocation risk following total hip arthroplasty (THA). Numerous explanations for its success have been advocated, including neuromuscular feedback loops originating from within the intact HJCC. This research investigates the hypothesis that the HJCC contributes to hip joint stability by analyzing HJCC innervation. METHOD: Twenty-nine samples from the anterior, medial, and lateral aspects of the midportion HJCC of 29 individuals were investigated stereologically and immunohistochemically to identify encapsulated mechanoreceptors according to a modified Freeman and Wyke classification, totaling 11,745 sections. Consecutive slices were observed to determine the nerve course within the HJCC. RESULTS: Few encapsulated mechanoreceptors were found in the HJCC subregions and overlying tissues across the cohort studied. Of regions studied, no significant regional differences in the density of mechanoreceptors were found. No significant difference in mechanoreceptor density was found between sides (left, 10.2×10-4/mm3, 4.0×10-4 - 19.0×10-4/mm3; right 12.9×10-4/mm3, 5.0×10-4 - 22.0×10-4/mm3; mean, 95% confidence intervals) sexes (female 10.4×10-4/mm3, 4.0×10-4 - 18.0×10-4/mm3; male 11.6×10-4/mm3, 5.0×10-4 - 20.0×10-4/mm3; mean, 95% confidence intervals), nor in correlation with age demographics. Myelinated nerves coursed consistently within the HJCC in various orientations. CONCLUSION: Sparse mechanoreceptor density suggests that the HJCC contributes to a limited extent to hip joint stabilization. HJCC nerve terminals may potentially contribute to neuromuscular feedback loops with associated muscles to mediate joint stability in tandem with the active and passive components of the joint.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Artroplastia de Reemplazo de Cadera / Luxaciones Articulares / Luxación de la Cadera Límite: Female / Humans / Male Idioma: En Revista: Osteoarthritis Cartilage Asunto de la revista: ORTOPEDIA / REUMATOLOGIA Año: 2023 Tipo del documento: Article

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Artroplastia de Reemplazo de Cadera / Luxaciones Articulares / Luxación de la Cadera Límite: Female / Humans / Male Idioma: En Revista: Osteoarthritis Cartilage Asunto de la revista: ORTOPEDIA / REUMATOLOGIA Año: 2023 Tipo del documento: Article