Abstract
Objective:
To estimate the prevalence of rotator cuff (RC) imaging abnormalities (tendinopathy, partial-thickness tear, full-thickness tear, or calcification) on radiograph, ultrasound, computed tomography, or magnetic resonance imaging (MRI) in asymptomatic adult shoulders.
Study Design:
Systematic review.
Literature Search:
Ovid MEDLINE, Embase, CINAHL, and Web of Science (searched September 1, 2024), with forward and backward citation searches.
Study Selection Criteria:
We included studies reporting the prevalence of RC abnormalities on imaging of asymptomatic shoulders.
Data Synthesis:
Due to heterogeneity, data were synthesized without meta-analysis. Risk of bias was assessed using a tool for prevalence studies. Certainty of evidence was determined using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.
Results:
After screening 3801 records and 188 studies in full text, we included 53 studies (29 ultrasound, 24 MRI) across population-based, miscellaneous, and athlete populations. The certainty of evidence was low to very low. For full-thickness tears, prevalence on ultrasound was 11% to 17% in 2 population-based samples (1631 shoulders), 0% to 35% across 14 studies of miscellaneous populations (3390 shoulders), and 0% to 22% across 4 studies of athlete populations (346 shoulders). On MRI, the prevalence was 20% in 1 population-based study (20 shoulders), 0% to 14% across 10 studies of miscellaneous populations (490 shoulders), and 0% to 11% across 12 studies of athlete populations (326 shoulders). For tendinopathy and/or partial-thickness tears, the prevalence on ultrasound was 34% in 1 population-based sample (539 shoulders), 0% to 47% across 11 studies of miscellaneous populations (1971 shoulders), and 7% to 70% across 4 studies of athlete populations (346 shoulders). On MRI, the prevalence was 65% in 1 population-based sample (20 shoulders), 0% to 100% across 10 studies of miscellaneous populations (490 shoulders), and 6% to 96% across 13 studies of athlete populations (426 shoulders).
Conclusion:
Across studies with low- to very low-certainty of evidence, the prevalence of RC imaging abnormalities in asymptomatic shoulders ranged from 0% to 100%.
To estimate the prevalence of rotator cuff (RC) imaging abnormalities (tendinopathy, partial-thickness tear, full-thickness tear, or calcification) on radiograph, ultrasound, computed tomography, or magnetic resonance imaging (MRI) in asymptomatic adult shoulders.
Study Design:
Systematic review.
Literature Search:
Ovid MEDLINE, Embase, CINAHL, and Web of Science (searched September 1, 2024), with forward and backward citation searches.
Study Selection Criteria:
We included studies reporting the prevalence of RC abnormalities on imaging of asymptomatic shoulders.
Data Synthesis:
Due to heterogeneity, data were synthesized without meta-analysis. Risk of bias was assessed using a tool for prevalence studies. Certainty of evidence was determined using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.
Results:
After screening 3801 records and 188 studies in full text, we included 53 studies (29 ultrasound, 24 MRI) across population-based, miscellaneous, and athlete populations. The certainty of evidence was low to very low. For full-thickness tears, prevalence on ultrasound was 11% to 17% in 2 population-based samples (1631 shoulders), 0% to 35% across 14 studies of miscellaneous populations (3390 shoulders), and 0% to 22% across 4 studies of athlete populations (346 shoulders). On MRI, the prevalence was 20% in 1 population-based study (20 shoulders), 0% to 14% across 10 studies of miscellaneous populations (490 shoulders), and 0% to 11% across 12 studies of athlete populations (326 shoulders). For tendinopathy and/or partial-thickness tears, the prevalence on ultrasound was 34% in 1 population-based sample (539 shoulders), 0% to 47% across 11 studies of miscellaneous populations (1971 shoulders), and 7% to 70% across 4 studies of athlete populations (346 shoulders). On MRI, the prevalence was 65% in 1 population-based sample (20 shoulders), 0% to 100% across 10 studies of miscellaneous populations (490 shoulders), and 6% to 96% across 13 studies of athlete populations (426 shoulders).
Conclusion:
Across studies with low- to very low-certainty of evidence, the prevalence of RC imaging abnormalities in asymptomatic shoulders ranged from 0% to 100%.
| Original language | English |
|---|---|
| Pages (from-to) | 736-751 |
| Number of pages | 16 |
| Journal | Journal of Orthopaedic and Sports Physical Therapy |
| Volume | 55 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Dec 2025 |