Related Experiment Video
Updated: Jan 21, 2026

Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft
Published on: June 6, 2025
Immobilization in external rotation vs internal rotation after shoulder dislocation: A systematic review and
Xin Cui1,2, Long Liang2, Hongyan Zhang3
1Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences.
This systematic review compares external rotation versus internal rotation fixation for shoulder dislocation treatment. It aims to determine the most effective and safest conservative therapy for this common injury.
Area of Science:
- Orthopedics
- Sports Medicine
- Rehabilitation
Background:
- Shoulder joint dislocation is a frequent injury, particularly in young individuals, with a high rate of recurrence.
- Conservative management is the primary treatment approach.
- External rotation and internal rotation fixation are common conservative therapies.
Purpose of the Study:
- To systematically review and meta-analyze the efficacy and safety of external rotation versus internal rotation fixation for shoulder dislocation.
- To compare the clinical outcomes of these two conservative treatment methods.
Main Methods:
- A systematic search of nine electronic databases (PubMed, Web of Science, Embase, Cochrane Library, CENTRAL, ClinicalTrials.gov, CNKI, Wanfang, VIP).
- Inclusion of randomized controlled trials.
- Data analysis using RevMan5.3, with subgroup and sensitivity analyses as needed.
- Evidence hierarchy evaluation using GRADE.
Main Results:
- This study will analyze and integrate existing evidence on the clinical efficacy and safety of external rotation and internal rotation immobilization for shoulder dislocation.
- Quantitative synthesis of data from included randomized controlled trials.
Conclusions:
- The study will provide higher-level evidence and recommendations for treating shoulder dislocation.
- Findings will aid in guiding clinical decision-making for optimal patient outcomes.
Related Concept Videos
Relative Motion Analysis using Rotating Axes - Acceleration
Time differentiation is...
Kinematic Equations for Rotation
For instance, imagine a point A on a rigid body engaged in circular motion. The translational velocity of this particular point can be calculated by taking the time derivatives of the displacement equation, which essentially measures the...
Relative Motion Analysis using Rotating Axes
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
External and Internal Respiration
Internal and External Forces
Rotation of Asymmetric Top
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...

