Fig 1.
Measurement of passive external rotation.
Method used to measure passive range of motion in shoulder external rotation using a hand-held dynamometer (Industrial Research Ltd, Christchurch, New Zealand) with the ability to standardize force-overpressure at end range of motion.
Table 1.
Radiologic diagnostic criteria.
Fig 2.
Ultrasound guided diagnostic injection into the subacromial bursa
Fig 3.
Flow chart of participants through the study.
Table 2.
Participant characteristics.
Table 3.
Prevalence of imaged pathology in those reporting a positive and negative anaesthetic response to diagnostic injection into the subacromial bursa (N = 196).
Table 4.
Diagnostic accuracy of clinical examination variables for a positive response to diagnostic injection into the subacromial bursa.
(N = 196).
Table 5.
Diagnostic accuracy of imaging variables for a positive response to diagnostic injection into the subacromial bursa.
Fig 4.
Algorithm for identifying participants with subacromial pain defined by ≥80% post-injection pain relief following ultrasound guided injection of local anaesthetic into the subacromial bursa. Abbreviations: PROM, passive range of motion; SAP, subacromial pain; ABER, abduction/external rotation (external rotation performed at 90o abduction); -ve, negative; +ve, positive; XR, x-ray; USS, diagnostic ultrasound scan; FTT, full thickness tear
Table 6.
Diagnostic accuracy of combinations of clinical examination variables alone, and when combined with diagnostic ultrasound scan reports of supraspinatus pathology.