Laser testing for upper extremity proprioceptive deficits following rotator cuff injury: two case reports

Effect of electroacupuncture combined with rehabilitation techniques on shoulder function in patients with rotator cuff injuries

BACKGROUND

The rotator cuff is located below the acromion and deltoid muscles and comprises multiple tendons that wrap around the humeral head, maintaining shoulder joint stability.

AIM

To explore the effect of electroacupuncture combined with rehabilitation techniques on shoulder function in patients with rotator cuff injuries.

METHODS

We selected 97 patients with rotator cuff injuries treated in the People's Hospital of Yuhuan from February 2020 to May 2023. Patients were grouped using the envelope method.

RESULTS

After treatment, the study group's treatment effective rate was 94.90% (46/49 patients), significantly higher than that in the control group (79.17%, 38/48 cases; P < 0.05). Before treatment, there was no difference in Constant Murley Score (CMS) scores, shoulder mobility, or 36-Item Short Form Health Survey (SF-36) scale scores (P > 0.05). Compared with those before treatment, the CMS scores (including pain, daily living ability, shoulder mobility, and muscle strength), all aspects of shoulder mobility (forward flexion, posterior extension, external rotation, internal rotation), and SF-36 scale scores (including physiological, psychological, emotional, physical, vitality, and health status) were higher in both groups after treatment and significantly higher in the study group (P < 0.05). There was no difference in the occurrence of complications between the two treatment groups (P > 0.05).

CONCLUSION

Electroacupuncture combined with rehabilitation techniques has a good treatment effect on patients with rotator cuff injuries, helps accelerate the recovery of shoulder function, improves the quality of life, and is highly safe.

THE INTER-RATER AND INTRA-RATER RELIABILITY OF GLENOHUMERAL JOINT POSITION AND MOVEMENT SENSE TESTS APPLIED USING AN ISOKINETIC DYNAMOMETER

Purpose: The aim of this study was to test the inter-rater and intra-rater reliability of glenohumeral joint (GHJ) position and movement sense tests of an isokinetic dynamometer in healthy individuals. Methods: The study included 17 healthy subjects. GHJ position and movement sense tests were applied with an isokinetic dynamometer to the dominant extremity. Results: The different error types calculated for position sense were in the range of mean 0.02±1.62 - 5.42±1.74. The ICC value for the different error types was determined in the range of 0.038 - 0.657 for the intra-rater tests, and 0.095 - 0.779 for the inter-rater tests. The movement sense test results for different directions and angles ranged from 9.61±2.61 to 11.18±2.89. The ICC values for movemeent sense were in the range of 0.687 – 0.912 for the intra-rater tests, and 0.844 - 0.925 for the inter-rater tests. Conclusion: The isokinetic dynamometer showed moderate-good intra-rater and inter-rater test reliability in the measurement of the GHJ internal rotation movement sense. The intra-rater test reliability was poor in external rotation but the inter-rater test reliability was moderate-good. However in the measurement of movement sense, the isokinetic dynamometer showed intra-rater and inter-rater test reliability at an excellent level. The conformity of both the position and the movement sense tests, and therefore, the repeatability, was extremely good.

Laser-Pointer assisted angle reproduction test (LP-ART): reliability, performance, and correlation with shoulder pain and disability in patients with subacromial pain syndrome

INTRODUCTION

The proprioception plays an important role in the stability of the shoulder joint. However, clinical practice lacks reliable and user-friendly tools.

OBJECTIVES

To evaluate the intra- and inter-rater reliability of the Laser-Pointer assisted Angle Reproduction Test (LP-ART), to analyze the difference in proprioception between the symptomatic and asymptomatic shoulders, and to investigate if there is a correlation between the LP-ART and the pain intensity assessed by 11-point Numerical Rating Pain Scale (NRPS) and the level of shoulder disability and pain assessed by the Disability Index and Shoulder Pain (SPADI - BR).

METHODS

Fifty patients (age = 56.2 ± 10.4 years) performed the LP-ART at 90° of shoulder flexion.

RESULTS

The intra and interrater reliability of the LP-ART measurements was moderate (Intraclass Correlation Coefficient_2,3 = 0.41 to 0.65) for both shoulders, symptomatic and asymptomatic. There was no difference in the absolute angular deviation between shoulders (mean difference of 0.4°, P = .581). The absolute angular deviation was not significantly correlated with the pain intensity (rs = 0.007, P = .962) and the SPADI - BR (r_s = 0.022, P = .881).

CONCLUSION

The LP-ART measurement showed moderate reliability in participants with subacromial pain syndrome. The active joint position sense was not different between symptomatic and asymptomatic shoulders, and there was no correlation between proprioception and the pain intensity and shoulder pain and disability level.