painful arc syndrome subacromial pain syndrome
Conditions
Interventions
None listed
Sponsors
Leids Universitair Medisch Centrum
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: The clinical diagnosis of stage I or II SIS is made when one or more of the following mentioned factors exist, next to a positive Neer impingement test and a positive Hawkins test.;Patients* history: - Diffuse unilateral shoulder pain for > 3 months; - Pain during activities with abduction, retroflexion and/or internal rotation (i.e. closing the door, putting on jacket, overhead activities); - Pain at night or incapable of lying on the shoulder.;Physical examination: - Diffuse pain at palpation of the greater tuberosity; - Disturbed scapulohumeral rhythm; - Painful arc; - No complaints or sings of pathologies on the contralateral shoulder; - > 90 Degrees external rotation in 90 degrees of passive abduction (frozen shoulder); - Positive Yocum test.
Exclusion criteria
Exclusion criteria: Patients are excluded if one of the following characteristics is found: - 60 years old - Restrictions in passive movements of glenohumeral joint/frozen shoulder; - History of fracture or dislocation of the shoulder; - History of surgery around the shoulder (in anamnesis); - Tumors; - No informed consent; - Clinical and radiographic signs of comorbidities or alternative diagnoses on the affected shoulder (glenohumeral instability, glenohumeral movement restriction, glenohumeral osteoarthritis or arthritis, rheumatic disorder, labrum lesions, a history of trauma on the affected shoulder, biceps muscle tendinitis, complete (full thickness) rotator cuff rupture, cervical radiculopathy, PASTA lesion, or calcifying tendinitis); - Contralateral shoulder with clinical signs of shoulder complaints. - Pacemaker or other electronic implants
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary study parameters: - Cranial translation of the humerus as measured on AP-radiographs in rest, and with a constant abduction and adduction force exertion against an force transducer - Scapulohumeral rhythm and shoulder-arm Range of Motion as measured with an electromagnetic motion tracking device. | — |
Secondary
| Measure | Time frame |
|---|---|
| All study parameters categorized for etiological subgroups: 1) Relative cranial translation of the humerus: 3D arm-scapula motion registration (3D RoM), muscle activation parameters of shoulder and rotator cuff muscles (EMG), static acromiohumeral distance (sAH) on AP-radiographs *at rest* and with exerted ab- and adduction moments (dAH), integrate bony 3D-shape with 3D RoM to describe dynamic AH (3DdAH). 2) Structural (bony) narrowing of the subacromial space: shape parameters of scapula (i.e. Bigliani acromion classification) and humerus, 3D kinematic analysis of scapulo-humeral motion by integration of bony 3D-shapes with 3D RoM. 3) Subacromial inflammatory processes and damaged tissues: MRI for rotator cuff and muscle quality (Goutallier score) and signs of bursitis, tendinitis and rotator cuff ruptures. 4) Other primary pathologies leading to SIS complaints: evaluation of MRI and radiographs for acromioclavicular-osteoarthritis, full thickness rotator cuff-ruptures, coracoid impingement and other subacromial pathologies. | — |
Countries
Netherlands
Outcome results
None listed