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The validity of the lag signs in the diagnosis of rotator cuff dysfunction in patients with shoulder pain

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN13159107
Enrollment
40
Registered
2003-09-12
Start date
2003-04-01
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Musculoskeletal Diseases: Shoulder pain Musculoskeletal Diseases Shoulder pain

Interventions

It is normal that patients with shoulder pain attending an orthopaedic out-patient clinic are clinically assessed for the likelihood of having rotator cuff dysfunction. Manual tests assessing the inte

Sponsors

Record provided by the NHS Trusts Clinical Trials Register - Department of Health (UK)
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Following a power calculation with the statistician (Peter Knight) it is thought that this study will need a minimum of 40 patients to make it clinically significant. Sample numbers of 40-50 have been recommended in the literature (Hicks 1999). However it is accepted that the larger the sample the greater the probability of randomness and chance operating as expected and this will reduce the chance of a sampling error (Hicks 1999). Sample: Sample is one of convenience: patients over 18 with shoulder pain attending an outpatient clinic at the Royal Orthopaedic Hospital who have been referred for ultrasound.

Exclusion criteria

Exclusion criteria: 1. Previous surgery in the last year to the limb being assessed 2. Neurological deficit on the side of pain 3. Restricted passive Range Of Motion (ROM) 4. Comprehension difficulties

Design outcomes

Primary

MeasureTime frame
The relationship between a positive lag sign and rotator cuff dysfunction

Secondary

MeasureTime frame
Not provided at time of registration

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026