Yamamoto, J Shoulder Elbow Surg 2010 - Prevalence and Risk Factors of a Rotator Cuff Tear in the General Population

Prevalence and Risk Factors of a Rotator Cuff Tear in the General Population

Yamamoto, Kobayashi, et al.·J Shoulder Elbow Surg·2010·1,372 citations·Prospective cohort

Background

Little information is available about the epidemiology of rotator cuff tears in a population-based study. The purpose of this study was to elucidate the true prevalence of rotator cuff tears regardless of the presence or absence of symptoms in the general population and to assess the relationship between tears and their backgrounds.

Methods

A medical check-up was conducted for residents of a mountain village in Japan.
The subjects consisted of 683 people (total of 1,366 shoulders), including 229 males and 454 females with a mean age of 57.9 years (range, 22-87).
We examined their background factors, physical examinations and ultrasonographic examinations on both shoulders.

Results

Rotator cuff tears were present in 20.7% and the prevalence increased with age.
36 percent of the subjects with current symptoms had rotator cuff tears, while 16.9% of the subjects without symptoms also had rotator cuff tears.
Rotator cuff tears in the general population were most commonly associated with elderly patients, males, affected the dominant arm, engaged in heavy labor, having a history of trauma, positive for impingement sign, showed lesser active forward elevation and weaker muscle strength in abduction and external rotation.
A logistic regression analysis revealed the risk factors for a rotator cuff tear to be a history of trauma, dominant arm and age.

Conclusions

20.7% of 1,366 shoulders had full-thickness rotator cuff tears in the general population. The risk factors for rotator cuff tear included a history of trauma, dominant arm and age.

Level of evidence: Level 3. Copyright remains with the authors and publisher.

Core

Prevalence and Risk Factors of a Rotator Cuff Tear in the General Population.

Yamamoto, Kobayashi, et al.J Shoulder Elbow Surg20101,372 citationsProspective cohort

Landmark

Acetabular Defect Classification and Surgical Reconstruction in Revision Arthroplasty. A 6-Year Follow-Up Evaluation.

Paprosky, Lawrence, et al.J Arthroplasty19941,213 citationsRetrospective cohort

Landmark

Effects of Bracing in Adolescents with Idiopathic Scoliosis.

Weinstein, Dobbs, et al.N Engl J Med20131,160 citationsRCT

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Adolescent Idiopathic Scoliosis: A New Classification to Determine Extent of Spinal Arthrodesis.

Lenke, Blanke, et al.J Bone Joint Surg Am20011,720 citationsDiagnostic study

Landmark

Problems in the Management of Type III (Severe) Open Fractures: A New Classification of Type III Open Fractures.

Gustilo, Williams, et al.J Trauma19842,361 citationsRetrospective cohort

Landmark

Neer Award 2005: The Grammont Reverse Shoulder Prosthesis: Results in Cuff Tear Arthritis, Fracture Sequelae, and Revision Arthroplasty.

Boileau, Hovorka, et al.J Shoulder Elbow Surg20061,115 citationsProspective cohort

Landmark

A System for the Surgical Staging of Musculoskeletal Sarcoma.

Enneking, Goodman, et al.Clin Orthop Relat Res19802,112 citationsRetrospective cohort

Landmark

Fracture Fixation in the Operative Management of Hip Fractures (FAITH): An International, Multicentre, Randomised Controlled Trial.

Fixation using Alternative Implants for the Treatment of Hip fractures (FAITH) InvestigatorsLancet2017310 citationsRCT

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Fatty Muscle Degeneration in Cuff Ruptures. Pre- and Postoperative Evaluation by CT Scan.

Goutallier, Voisin, et al.Clin Orthop Relat Res19942,669 citationsProspective cohort

Landmark

Dislocations after Total Hip-Replacement Arthroplasties.

Lewinnek, Zimmerman, et al.J Bone Joint Surg Am19782,549 citationsRetrospective cohort

Landmark

Morphologic Study of the Glenoid in Primary Glenohumeral Osteoarthritis.

Walch, Khoury, et al.J Arthroplasty19991,142 citationsRetrospective cohort

Landmark

The Three Column Spine and Its Significance in the Classification of Acute Thoracolumbar Spinal Injuries.

DenisSpine (Phila Pa 1976)19832,566 citationsRetrospective cohort

Landmark

The Reverse Shoulder Prosthesis for Glenohumeral Arthritis Associated with Severe Rotator Cuff Deficiency. A Minimum Two-Year Follow-Up Study of Sixty Patients.

Frankle, Vasey, et al.J Bone Joint Surg Am2005773 citationsRetrospective cohort

Landmark

Randomized Trial of Reamed and Unreamed Intramedullary Nailing of Tibial Shaft Fractures.

Study to Prospectively Evaluate Reamed Intramedullary Nails in Patients with Tibial Fractures Investigators, Walter, et al.J Bone Joint Surg Am2008445 citationsRCT

Landmark

A New Classification of Thoracolumbar Injuries: The Importance of Injury Morphology, the Integrity of the Posterior Ligamentous Complex, and Neurologic Status.

Vaccaro, Oner, et al.Spine (Phila Pa 1976)2005866 citationsConsensus statement

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A Trial of Wound Irrigation in the Initial Management of Open Fracture Wounds.

FLOW Investigators, Guyatt, et al.N Engl J Med2015347 citationsRCT

Landmark

Curve Progression in Idiopathic Scoliosis.

Weinstein, PonsetiJ Bone Joint Surg Am1983641 citationsRetrospective cohort

Landmark

Traumatic Glenohumeral Bone Defects and Their Relationship to Failure of Arthroscopic Bankart Repairs: Significance of the Inverted-Pear Glenoid and the Humeral Engaging Hill-Sachs Lesion.

Burkhart, De BeerArthroscopy20001,884 citationsCase series

Landmark

The Value of the Tip-Apex Distance in Predicting Failure of Fixation of Peritrochanteric Fractures of the Hip.

Baumgaertner, Keggi, et al.J Bone Joint Surg Am19951,441 citationsRetrospective cohort

Landmark

Transchondral Fractures (Osteochondritis Dissecans) of the Talus.

Berndt, HartyJ Bone Joint Surg Am1959945 citationsBiomechanical study

Landmark

Surgical versus Nonsurgical Therapy for Lumbar Spinal Stenosis.

Weinstein, SPORT Investigators, et al.N Engl J Med20081,207 citationsRCT

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The Lateral Pillar Classification of Legg-Calvé-Perthes Disease.

Herring, Browne, et al.J Pediatr Orthop1992461 citationsRetrospective cohort

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Natural History of Asymptomatic Rotator Cuff Tears: A Longitudinal Analysis of Asymptomatic Tears Detected Sonographically.

Yamaguchi, Middleton, et al.J Shoulder Elbow Surg2001498 citationsRetrospective cohort

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The Rotator Crescent and Rotator Cable: An Anatomic Description of the Shoulder's "Suspension Bridge".

Burkhart, Jolson, et al.Arthroscopy1993469 citationsAnatomic study

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Posterolateral Rotatory Instability of the Elbow.

O'Driscoll, Morrey, et al.J Bone Joint Surg Am1991997 citationsCase series

Landmark

Preoperative versus Postoperative Radiotherapy in Soft-Tissue Sarcoma of the Limbs: A Randomised Trial.

O'Sullivan, Zee, et al.Lancet20021,587 citationsRCT

Landmark

Nonoperative Treatment Compared with Plate Fixation of Displaced Midshaft Clavicular Fractures. A Multicenter, Randomized Clinical Trial.

Canadian Orthopaedic Trauma SocietyJ Bone Joint Surg Am2007804 citationsRCT

Landmark

Microvasculature of the Human Meniscus.

Arnoczky, WarrenAm J Sports Med19821,227 citationsAnatomic study

Landmark

Metastatic Disease in Long Bones. A Proposed Scoring System for Diagnosing Impending Pathologic Fractures.

MirelsClin Orthop Relat Res19891,222 citationsRetrospective cohort

Landmark

Early versus Delayed Decompression for Traumatic Cervical Spinal Cord Injury: Results of the Surgical Timing in Acute Spinal Cord Injury Study (STASCIS).

Fehlings, Rampersaud, et al.PLoS One20121,200 citationsProspective cohort

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Three-Dimensional Analysis of the Proximal Part of the Humerus: Relevance to Arthroplasty

Robertson, Yamaguchi, et al.J Bone Joint Surg Am2000255 citationsAnatomic study

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Impingement Lesions.

NeerClin Orthop Relat Res19831,827 citationsReview article

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Direct Decompressive Surgical Resection in the Treatment of Spinal Cord Compression Caused by Metastatic Cancer: A Randomised Trial.

Patchell, Young, et al.Lancet20052,356 citationsRCT

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Injuries Involving the Epiphyseal Plate

Salter, HarrisJ Bone Joint Surg Am19631,737 citationsRetrospective cohort

Landmark

The Disabled Throwing Shoulder: Spectrum of Pathology Part III: The SICK Scapula, Scapular Dyskinesis, the Kinetic Chain, and Rehabilitation.

Burkhart, Kibler, et al.Arthroscopy2003929 citations

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Cuff-Tear Arthropathy.

Neer, Fukuda, et al.J Bone Joint Surg Am1983774 citationsCase series

Landmark

A System of Staging Musculoskeletal Neoplasms.

EnnekingClin Orthop Relat Res19861,083 citationsReview article

Landmark

Elbow Instability.

O'DriscollActa Orthop Belg199959 citationsReview article

Landmark

Effect of Achilles Tendon Lengthening on Neuropathic Plantar Ulcers: A Randomized Clinical Trial

Mueller, Johnson, et al.J Bone Joint Surg Am2003347 citationsRCT

Landmark

The Management of Acetabular Insufficiency Secondary to Metastatic Malignant Disease

HarringtonJ Bone Joint Surg Am1981303 citationsCase series

Landmark

Acetabular Anatomy and the Transacetabular Fixation of Screws in Total Hip Arthroplasty

Wasielewski, Rubash, et al.J Bone Joint Surg Am1990290 citationsAnatomic study

Landmark

Biomechanical Measures of Neuromuscular Control and Valgus Loading of the Knee Predict Anterior Cruciate Ligament Injury Risk in Female Athletes: A Prospective Study.

Hewett, Succop, et al.Am J Sports Med20053,495 citationsProspective cohort

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Grammont Inverted Total Shoulder Arthroplasty in the Treatment of Glenohumeral Osteoarthritis with Massive Rupture of the Cuff. Results of a Multicentre Study of 80 Shoulders.

Sirveaux, Molé, et al.J Bone Joint Surg Br20041,598 citationsRetrospective cohort

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Hip Morphology Influences the Pattern of Damage to the Acetabular Cartilage: Femoroacetabular Impingement as a Cause of Early Osteoarthritis of the Hip.

Beck, Ganz, et al.J Bone Joint Surg Br20051,955 citationsRetrospective cohort

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Sanders, Walling, et al.Clin Orthop Relat Res1993891 citationsProspective cohort

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Fractures of the Ankle. II. Combined Experimental-Surgical and Experimental-Roentgenologic Investigations.

Lauge-HansenArch Surg1950830 citationsBiomechanical study

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Stulberg, Wallensten, et al.J Bone Joint Surg Am1981810 citationsRetrospective cohort

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Reconstruction of the Ulnar Collateral Ligament in Athletes.

Jobe, Lombardo, et al.J Bone Joint Surg Am1986758 citationsCase series

Landmark

Replacement Arthroplasty for Glenohumeral Osteoarthritis.

NeerJ Bone Joint Surg Am1974598 citationsCase series

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Fractures of the Neck of the Talus.

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Degenerative Lumbar Spondylolisthesis with Spinal Stenosis. A Prospective Study Comparing Decompression with Decompression and Intertransverse Process Arthrodesis.

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Limits of Movement in the Human Knee. Effect of Sectioning the Posterior Cruciate Ligament and Posterolateral Structures.

Grood, Noyes, et al.J Bone Joint Surg Am1988674 citationsBiomechanical study

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Galatz, Yamaguchi, et al.J Bone Joint Surg Am20042,135 citationsCase series

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Displaced Proximal Humeral Fractures. I. Classification and Evaluation.

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Arthroscopic Repair of Full-Thickness Tears of the Supraspinatus: Does the Tendon Really Heal?

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Gerber, Vinh, et al.J Bone Joint Surg Am1990441 citationsAnatomic study

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Snyder, Friedman, et al.Arthroscopy19901,264 citationsCase series

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Displaced Proximal Humeral Fractures. II. Treatment of Three-Part and Four-Part Displacement.

NeerJ Bone Joint Surg Am19701,283 citationsRetrospective cohort

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Functional and Structural Outcome after Arthroscopic Full-Thickness Rotator Cuff Repair: Single-Row versus Dual-Row Fixation

Sugaya, Moriishi, et al.Arthroscopy2005918 citationsRetrospective cohort

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The Treatment of Soft-Tissue Sarcomas of the Extremities: Prospective Randomized Evaluations of (1) Limb-Sparing Surgery Plus Radiation Therapy Compared with Amputation and (2) the Role of Adjuvant Chemotherapy.

Rosenberg, Wesley, et al.Ann Surg19821,347 citationsRCT

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Anterior Acromioplasty for the Chronic Impingement Syndrome in the Shoulder. 1972.

NeerJ Bone Joint Surg Am1972536 citationsCase series

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Abnormal Magnetic-Resonance Scans of the Lumbar Spine in Asymptomatic Subjects. A Prospective Investigation.

Boden, Wiesel, et al.J Bone Joint Surg Am1990668 citationsProspective cohort

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Hip Arthroscopy versus Best Conservative Care for the Treatment of Femoroacetabular Impingement Syndrome (UK FASHIoN): A Multicentre Randomised Controlled Trial.

Griffin, FASHIoN Study Group, et al.Lancet2018542 citationsRCT

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Morrey, Chao, et al.J Bone Joint Surg Am19811,380 citationsBiomechanical study

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Burkhart, Kibler, et al.Arthroscopy20031,304 citationsReview article

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Judet, Letournel, et al.J Bone Joint Surg Am1964980 citationsCase series

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Neer, FosterJ Bone Joint Surg Am1980934 citationsCase series

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The Impact of Positive Sagittal Balance in Adult Spinal Deformity.

Glassman, Schwab, et al.Spine (Phila Pa 1976)20051,878 citationsRetrospective cohort

Landmark

An Analysis of Outcomes of Reconstruction or Amputation after Leg-Threatening Injuries.

Bosse, Castillo, et al.N Engl J Med2002901 citationsProspective cohort

Landmark

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Poppen, WalkerJ Bone Joint Surg Am1976886 citationsCase-control study

Landmark

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Harms, MelcherSpine (Phila Pa 1976)20011,528 citationsCase series

Landmark

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Landmark

A Randomized Trial of Vertebroplasty for Painful Osteoporotic Vertebral Fractures.

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Landmark

Validity of a Set of Clinical Criteria to Rule Out Injury to the Cervical Spine in Patients with Blunt Trauma. National Emergency X-Radiography Utilization Study Group.

Hoffman, Zucker, et al.N Engl J Med20001,302 citationsProspective cohort

Landmark

Total Hip Arthroplasty or Hemiarthroplasty for Hip Fracture

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Landmark

A Classification for Congenital Limb Malformations.

SwansonJ Hand Surg Am1976429 citationsReview article

Landmark

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PipkinJ Bone Joint Surg Am1957445 citationsCase series

Landmark

Compression-Plate Fixation in Acute Diaphyseal Fractures of the Radius and Ulna

Anderson, Park, et al.J Bone Joint Surg Am1975416 citationsCase series

Landmark

Legg-Calve-Perthes Disease. Part II: Prospective Multicenter Study of the Effect of Treatment on Outcome.

Herring, Browne, et al.J Bone Joint Surg Am2004143 citationsProspective cohort

Landmark

The Role of the Scapula in Athletic Shoulder Function.

KiblerAm J Sports Med19981,240 citationsReview article

Landmark

The SLAC Wrist: Scapholunate Advanced Collapse Pattern of Degenerative Arthritis.

Watson, BalletJ Hand Surg Am19841,138 citationsRetrospective cohort

Landmark

Classification and an Algorithmic Approach to the Reconstruction of Femoral Deficiency in Revision Total Hip Arthroplasty.

Valle, PaproskyJ Bone Joint Surg Am2003199 citationsRetrospective cohort

Landmark

The Tibial Plateau Fracture. The Toronto Experience 1968--1975.

Schatzker, Bruce, et al.Clin Orthop Relat Res19791,029 citationsRetrospective cohort

Landmark

Surgical Dislocation of the Adult Hip a Technique with Full Access to the Femoral Head and Acetabulum without the Risk of Avascular Necrosis.

Ganz, Berlemann, et al.J Bone Joint Surg Br20011,367 citationsCase series

Landmark

Predictors of Humeral Head Ischemia after Intracapsular Fracture of the Proximal Humerus.

Hertel, Leunig, et al.J Shoulder Elbow Surg2004837 citationsProspective cohort

Landmark

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Bone, Scheinberg, et al.J Bone Joint Surg Am1989795 citationsRCT

Landmark

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LetournelClin Orthop Relat Res1980715 citationsRetrospective cohort

Landmark

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Fisher, Fourney, et al.Spine (Phila Pa 1976)20101,224 citationsConsensus statement

Landmark

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Rangan, PROFHER Trial Collaborators, et al.JAMA2015540 citationsRCT

Landmark

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Landmark

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Landmark

Health and Function of Patients with Untreated Idiopathic Scoliosis: A 50-Year Natural History Study.

Weinstein, Ponseti, et al.JAMA2003755 citationsProspective cohort

Prevalence and Risk Factors of a Rotator Cuff Tear in the General Population

Yamamoto, Kobayashi, et al.·J Shoulder Elbow Surg·2010·1,372 citations·Prospective cohort

DOI·PubMed

Background

Methods

A medical check-up was conducted for residents of a mountain village in Japan.
The subjects consisted of 683 people (total of 1,366 shoulders), including 229 males and 454 females with a mean age of 57.9 years (range, 22-87).
We examined their background factors, physical examinations and ultrasonographic examinations on both shoulders.

Results

Rotator cuff tears were present in 20.7% and the prevalence increased with age.
36 percent of the subjects with current symptoms had rotator cuff tears, while 16.9% of the subjects without symptoms also had rotator cuff tears.
Rotator cuff tears in the general population were most commonly associated with elderly patients, males, affected the dominant arm, engaged in heavy labor, having a history of trauma, positive for impingement sign, showed lesser active forward elevation and weaker muscle strength in abduction and external rotation.
A logistic regression analysis revealed the risk factors for a rotator cuff tear to be a history of trauma, dominant arm and age.

Conclusions

20.7% of 1,366 shoulders had full-thickness rotator cuff tears in the general population. The risk factors for rotator cuff tear included a history of trauma, dominant arm and age.

Level of evidence: Level 3. Copyright remains with the authors and publisher.

Background

Methods

A medical check-up was conducted for residents of a mountain village in Japan.
The subjects consisted of 683 people (total of 1,366 shoulders), including 229 males and 454 females with a mean age of 57.9 years (range, 22-87).
We examined their background factors, physical examinations and ultrasonographic examinations on both shoulders.

Results

Rotator cuff tears were present in 20.7% and the prevalence increased with age.
36 percent of the subjects with current symptoms had rotator cuff tears, while 16.9% of the subjects without symptoms also had rotator cuff tears.
Rotator cuff tears in the general population were most commonly associated with elderly patients, males, affected the dominant arm, engaged in heavy labor, having a history of trauma, positive for impingement sign, showed lesser active forward elevation and weaker muscle strength in abduction and external rotation.
A logistic regression analysis revealed the risk factors for a rotator cuff tear to be a history of trauma, dominant arm and age.

Conclusions

20.7% of 1,366 shoulders had full-thickness rotator cuff tears in the general population. The risk factors for rotator cuff tear included a history of trauma, dominant arm and age.

Level of evidence: Level 3. Copyright remains with the authors and publisher.

Background

Methods

A medical check-up was conducted for residents of a mountain village in Japan.
The subjects consisted of 683 people (total of 1,366 shoulders), including 229 males and 454 females with a mean age of 57.9 years (range, 22-87).
We examined their background factors, physical examinations and ultrasonographic examinations on both shoulders.

Results

Rotator cuff tears were present in 20.7% and the prevalence increased with age.
36 percent of the subjects with current symptoms had rotator cuff tears, while 16.9% of the subjects without symptoms also had rotator cuff tears.
Rotator cuff tears in the general population were most commonly associated with elderly patients, males, affected the dominant arm, engaged in heavy labor, having a history of trauma, positive for impingement sign, showed lesser active forward elevation and weaker muscle strength in abduction and external rotation.
A logistic regression analysis revealed the risk factors for a rotator cuff tear to be a history of trauma, dominant arm and age.

Conclusions

20.7% of 1,366 shoulders had full-thickness rotator cuff tears in the general population. The risk factors for rotator cuff tear included a history of trauma, dominant arm and age.

Level of evidence: Level 3. Copyright remains with the authors and publisher.