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[Shoulder instability and pain. Computerized arthro-tomography assessment]

P Pricca1, A Cecchini, M Petullà

  • 1Servizio di Radiodiagnostica, IRCCS Policlinico S. Matteo, Pavia.

La Radiologia Medica
|May 1, 1993
PubMed
Summary

CT arthrography is a highly accurate imaging method for shoulder instability and pain, effectively identifying labral and capsular injuries, and aiding surgical planning.

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Area of Science:

  • Orthopedic imaging
  • Radiology
  • Musculoskeletal diagnostics

Background:

  • Increasing demand for detailed shoulder joint imaging in orthopedics.
  • Need for comprehensive visualization of bone, capsuloligamentous, and musculotendinous structures.
  • CT arthrography as a widely adopted method for detailed shoulder assessment.

Purpose of the Study:

  • To evaluate the utility of CT arthrography in diagnosing shoulder instability and pain.
  • To identify common pathologies associated with traumatic and atraumatic shoulder instability.
  • To assess the effectiveness of CT arthrography in diagnosing various shoulder conditions.

Main Methods:

  • Retrospective analysis of 282 patients undergoing CT arthrography.
  • Categorization of patients based on anatomical instability, functional instability, or shoulder pain.

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  • Detailed examination of imaging findings, including labral tears, capsular lesions, and Hill-Sachs lesions.

    • Main Results:

    • High incidence of glenoid labra (91%) and capsule (82%) injuries in traumatic instability, often associated.
    • Frequent detection of Hill-Sachs lesions (65.8%) in traumatic cases.
    • Common causes of shoulder pain identified include impingement syndrome (30.5%) and superior labrum lesions (16.7%).
    • CT arthrography demonstrated high specificity (97.7%), sensitivity (91%), and accuracy (96%).

    Conclusions:

    • CT arthrography is highly effective in identifying labral and capsular abnormalities, rotator cuff conditions, and fractures.
    • The imaging modality is minimally invasive, well-tolerated, and crucial for treatment and surgical planning.
    • CT arthrography provides comprehensive diagnostic information for diverse shoulder pathologies.