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Does the glenohumeral joint capsule have proprioceptive capability?

J Jerosch1, W H Castro, H Halm

  • 1Orthopedic Department, Westfälische Wilhelms University, Münster, Germany.

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|January 1, 1993
PubMed
Summary

Intra-articular lidocaine injection in the shoulder joint increased passive translation, suggesting the joint capsule has proprioceptive capabilities. This indicates nerve fibers and mechanoreceptors are present in the capsule tissue.

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Area of Science:

  • Orthopedics
  • Sports Medicine
  • Anatomy

Background:

  • The glenohumeral joint capsule's role in proprioception is not fully understood.
  • Assessing joint stability often involves subjective measures.
  • Understanding the sensory feedback from the shoulder capsule is crucial for rehabilitation.

Purpose of the Study:

  • To investigate the effect of intra-articular lidocaine on glenohumeral joint passive translation.
  • To explore the proprioceptive capabilities of the shoulder joint capsule.

Main Methods:

  • A randomized clinical study involving 60 volunteers with stable shoulder joints.
  • Group 1 received intra-articular lidocaine; Group 2 received saline and contrast dye.
  • Ultrasound was used to measure passive anteroposterior translation and inferior subluxation during stability tests.

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Main Results:

  • Lidocaine group showed significantly greater anteroposterior translation (13.2 mm vs. 6.8 mm) compared to the control group (P < 0.05).
  • The sulcus test revealed significantly increased inferior humeral head translation in the lidocaine group (5.6 mm vs. 2.7 mm) (P < 0.05).
  • No complications were reported, and patients experienced no significant pain or apprehension.

Conclusions:

  • The glenohumeral joint capsule appears to possess proprioceptive capabilities.
  • Nerve fibers and mechanoreceptors are likely localized within the capsule, contributing to a physiological feedback mechanism.
  • These findings suggest a sensory role for the shoulder capsule in joint stability and movement control.