In many instances , no or minimal attempts to screen were undertaken or reported .
Background Subacromial shoulder pain is a common clinical presentation with much diagnostic uncertainty .
Some of this uncertainty relates to the involvement of the cervical spine as a source or contribution to subacromial shoulder pain .
Currently , there is no accepted method of screening of the cervical spine in the presence of subacromial shoulder pain , which risks patients receiving misguided and /or ineffective interventions .
Objective To evaluate approaches used to screen the cervical spine in patients with subacromial shoulder pain .
Interferential light therapy in the treatment of shoulder tendinopathies: a randomized controlled pilot study
Objectives : To test the safety of the diode light therapy and evaluate the advantages of the interferential effect of two light probes versus a conventional light probe in the relief of  shoulder pain and disability caused by shoulder tendinopathies . Design : R and omized single-blind pilot study . Setting : Clinical electrotherapy unit . Participants : A total of 30 patients with shoulder pain from tendinopathies . Interventions : The patients were r and omly assigned into two groups . Group 1 ( n = 15 ) received interferential light therapy generated by two independent and identical cluster probes composed of light emitting and superluminescent diodes . Similarly , two applicators were applied in group 2 ( n = 15 ) , but only one was active , as in conventional clinical therapy . Each multi-diode cluster probe was composed of seven light-emitting diodes at 600 nm and 12 superluminescent diodes at 950 nm . Main outcome measures : Pain was evaluated by visual analogue scale ( VAS ) at day , at night and during several shoulder movements . Shoulder functional status was measured by means of the University California Los Angeles scale ( UCLA ) . Results : Comparison between both treatments using the Mann – Whitney U-test showed better results for the interferential treatment . There were significant differences in pain reduction during abduction ( P < 0.05 ) and external rotation ( P < 0.05 ) , with pain reductions in abduction and external rotation of 1.5 ( ± 1.3 ) and 0.5 ( ± 1.0 ) respectively . Conclusion : Interferential light therapy was safe and effective regarding the shoulder pain reduction during abduction and external rotation movements . The estimated size sample needed for future two-treatment parallel- design studies will require about 60 patients
In many instances , no or minimal attempts to screen were undertaken or reported .
Background Subacromial shoulder pain is a common clinical presentation with much diagnostic uncertainty .
Some of this uncertainty relates to the involvement of the cervical spine as a source or contribution to subacromial shoulder pain .
Currently , there is no accepted method of screening of the cervical spine in the presence of subacromial shoulder pain , which risks patients receiving misguided and /or ineffective interventions .
Objective To evaluate approaches used to screen the cervical spine in patients with subacromial shoulder pain .