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Related Experiment Videos

Instability after arthroplasty: the shoulder.

Russell F Warren1, Struan H Coleman, Joshua S Dines

  • 1Sports Medicine and Shoulder Service, The Hospital for Special Surgery, New York, New York 10021, USA.

The Journal of Arthroplasty
|June 18, 2002
PubMed
Summary
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Shoulder instability after total shoulder arthroplasty is a common complication. Correctly identifying the anatomical cause through imaging is crucial for successful treatment and restoring shoulder stability.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Shoulder instability is a frequent complication following total shoulder arthroplasty.
  • Causes include component malposition, incorrect versioning, soft tissue issues, and rotator cuff deficiency.

Purpose of the Study:

  • To outline the classification and causes of shoulder instability after total shoulder arthroplasty.
  • To emphasize the importance of accurate diagnosis and anatomical assessment for effective treatment.

Main Methods:

  • Review of potential causes of instability.
  • Importance of radiographic, computed tomography (CT), and magnetic resonance imaging (MRI) for diagnosis.
  • Understanding normal glenoid and humeral head anatomy.

Main Results:

Related Experiment Videos

  • Instability can be anterior, posterior, superior, or inferior, often due to combined deficiencies.
  • Accurate component positioning and soft tissue management are key.
  • Restoring cuff integrity is vital for stability.

Conclusions:

  • Recognizing the specific anatomical cause of instability is critical for treatment planning.
  • Comprehensive evaluation using advanced imaging guides the surgical approach.
  • Successful management involves addressing component alignment, soft tissue balance, and rotator cuff function.