The evidenced-based shoulder evaluation.

Area of Science:

• Orthopedic Surgery
• Diagnostic Imaging
• Musculoskeletal Medicine

Background:

• Extensive research exists on shoulder physical examination techniques.
• Published studies often lack sufficient quality and statistical power.
• Many individual shoulder tests lack diagnostic accuracy for ruling pathologies in or out.

Purpose of the Study:

• To evaluate the diagnostic accuracy of shoulder physical examination tests.
• To assess the impact of combining tests and incorporating patient history.
• To compare physical examination accuracy with imaging modalities for specific shoulder conditions.

Main Methods:

• Review of existing literature and meta-analyses on shoulder examination techniques.
• Analysis of diagnostic accuracy when tests are used in isolation versus in combination.
• Integration of specific historical findings with physical examination results.
• Evaluation of imaging modalities like ultrasound and MRI for rotator cuff tears and SLAP lesions.

Main Results:

• Individual shoulder tests generally have limited ability to rule pathologies in or out.
• Combining tests (e.g., passive distraction and active compression) improves accuracy for superior labral anterior to posterior (SLAP) lesions.
• Integrating patient history (age >39, popping/clicking, painful arc) enhances accuracy for rotator cuff tendinopathy.
• Ultrasound and MRI can rule rotator cuff tears in or out; MRI arthrography can rule out SLAP tears but may be less accurate than combined physical exams for ruling them in.

Conclusions:

• Combined physical examination maneuvers and patient history improve diagnostic accuracy for shoulder conditions.
• Imaging modalities are valuable for specific diagnoses, with varying accuracy depending on the condition.
• A multimodal approach integrating physical exam, history, and imaging offers the most reliable shoulder pathology diagnosis.