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Muscles of the Shoulder

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The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
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Related Experiment Video

Updated: Apr 29, 2026

Reverse Total Shoulder Arthroplasty

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

Shoulder joint arthroscopy.

J R Andrews, W G Carson

|May 15, 2014

Summary

This summary is machine-generated.

This study details a diagnostic and surgical shoulder arthroscopy technique. The findings in 118 patients show arthroscopy is reliable for diagnosing shoulder abnormalities when anatomy and technique are carefully considered.

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Area of Science:

Orthopedic Surgery
Sports Medicine
Diagnostic Imaging

Background:

Presents a standardized technique for diagnostic and surgical shoulder arthroscopy.
Describes normal and variant arthroscopic anatomy crucial for accurate diagnosis.
Based on findings from 118 patients (120 shoulders) with shoulder pain, popping, or instability.

Discussion:

Highlights the high diagnostic yield of arthroscopy, with 88% of patients showing abnormalities.
Emphasizes the importance of understanding shoulder anatomy for reproducible results.
Discusses the average 12-month symptom duration before surgical intervention.

Key Insights:

Diagnostic shoulder arthroscopy is a systematic and reproducible procedure.
Accurate identification of normal and variant anatomy is critical for diagnostic success.
The technique aids in diagnosing various shoulder pathologies effectively.

Outlook:

Potential for improved diagnostic accuracy in shoulder conditions.
Further refinement of arthroscopic techniques for enhanced patient outcomes.
Application in training orthopedic surgeons for shoulder arthroscopy.