The laser-pointer assisted angle reproduction test for evaluation of proprioceptive shoulder function in patients with instability

Abstract

The new LP-ART presented here is a technically simple, yet effective instrument for evaluation of the proprioceptive function of the shoulder. In contrast to former test setups it is feasible in daily routine. Compared to healthy controls, patients with unstable shoulder joints show significant proprioceptive disorders that can be quantified by the LP-ART.

Test validity and intra-rater reliability in the measurement of scapular position sense in asymptomatic young adults

“…Although some researchers have speculated that individuals might have better joint position reproduction with the dominant limb as a result of training, others believed that the dominant limb might be less sensitive to joint position change because overuse of limbs could lead to cumulative micro injuries (Lephart, 1994;Balke, 2011). Studies by Balke et al (2011), Herrington et al (2010, and by Lephart et al (1994) demonstrated similar results that dominant and non-dominant shoulders did not differ in glenohumeral JPS. Previous research showed that fatigued shoulder muscles compromised the scapular and shoulder JPS performance in young healthy adults (Lee, 2003;Guo, 2011).…”

“…Various studies have measured shoulder JPS and showed its deficits in individuals with shoulder injury (Lephart, 1994;Dover, 2003;Lee, 2003;Tripp, 2006;Suprak, 2007;Herrington, 2010;Yang, 2010;Balke, 2011;Guo, 2011;Lin, Hung, & Yang, 2011). There have been only a few investigations into the scapular JPS despite its importance in the functioning of the shoulder complex.…”

“…These measurements nevertheless require laboratory instrumentation which is not applicable in the clinical settings. Although some researchers believed that the dominant limb might be less sensitive to joint position change because overuse of limbs could lead to cumulative micro injuries (Lephart, 1994;Balke, 2011), no study examined the effect of arm dominance on scapular proprioception. Therefore, we designed this study (1) to determine the intra-rater repeatability for the 3D measurement of scapular joint position sense (JPS, represented by joint reposition errors) and the clinical scale ruler measurement, (2) to validate the clinical measurement of scapular JPS using the 3D measurement results and (3) to determine whether differences in scapular JPS exist between dominant and non-dominant shoulders.…”

Upper limb kinematics after arthroscopic and open shoulder stabilization

“…Such a mechanism plays a substantive role in maintaining shoulder stability. 10,15,18,23 It has been shown that disruption of the shoulder capsuloligamentous complex after traumatic dislocation has a detrimental effect on proprioception, 4,22 which may recover after surgical restoration of the normal GHJ capsular tensioning. 25,29 Whereas open shoulder stabilization has been traditionally performed for this purpose, arthroscopic techniques for capsulolabral reconstruction gained popularity during the past decade with comparable clinical outcomes.…”

Interest of emergency arthroscopic stabilization in primary shoulder dislocation in young athletes

“…Clinical assessment comprised the Quick-DASH work and sports module [20] and Walch-Duplay score. Last (2-year) follow-up included Rowe score [21], Simple Shoulder Test (SST) [22] and the "3S" satisfaction score after stabilization [23]; shoulder proprioception was assessed as the ability to reproduce a posture using a laser pointer on a wall-mounted target [24] (Fig. 5) and the Shoulder HyperAbduction Radiological Test (SHART) [25] ( Fig.…”