Treatment of Shoulder Dislocation Due to Rotator Cuff Syndrome: A Comparative Study Between A Manual Relocating Technique and A Shoulder Rehabilitation Device

Abstract

Our objective is to introduce a new device designated to reduce shoulder dislocation (METHOD-2) compared to a manual technique (METHOD-1). Eighteen shoulders in 20 right-handed participants (22±5) were evaluated as non-traumatic posterior instability. Patients recorded scores ranging between 71.6 and 88.42% when performing the Japanese orthopaedic association shoulder scale (JOASS). Participants were divided into two groups of tens. A licensed physical therapist applied METHOD-1 on GROUP-1. As for GROUP-2, they completed two sets of 10 tractions and pulls using METHOD-2. Participants were asked to complete a relocating maneuver (METHOD-1 or METHOD-2) followed by a pain assessment (Borg-CR10) and a «Self-Assessment Manikin» (SAM). A retest was set 6 to 8 days later.  The data collected were abduction, elevation, medial and lateral rotation goniometry, as well as, the scores obtained from the SAM and Borg-CR10 scales. A paired Student-T test was realized in order to compare test and retest results (p<.05).  GROUP-1 procured a decrease in Borg-CR10 Scale (0.9) and an increase in the SAM scale (1.5). The gains of amplitude in GROUP-1 participants were significantly higher (p<.05) than those attained in GROUP-2 (p>.05). In conclusion, METHOD-2 had no shoulder relocating effects, but decreased the self-reported pain perception.