The Effect of Blood Flow Restriction Therapy on Shoulder Function Following Shoulder Stabilization Surgery: A Case Series

# Background Traumatic shoulder instability is a common injury in athletes and military personnel. Surgical stabilization reduces recurrence, but athletes often return to sport before recovering upper extremity rotational strength and sport-specific abilities. Blood flow restriction (BFR) may stimul...

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Main Authors: John H. McGinniss (Author), John S. Mason (Author), Jamie B. Morris (Author), Will Pitt (Author), Erin M. Miller (Author), Michael S. Crowell (Author)
Format: Book
Published: North American Sports Medicine Institute, 2022-10-01T00:00:00Z.
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042 |a dc 
100 1 0 |a John H. McGinniss  |e author 
700 1 0 |a John S. Mason  |e author 
700 1 0 |a Jamie B. Morris  |e author 
700 1 0 |a Will Pitt  |e author 
700 1 0 |a Erin M. Miller  |e author 
700 1 0 |a Michael S. Crowell  |e author 
245 0 0 |a The Effect of Blood Flow Restriction Therapy on Shoulder Function Following Shoulder Stabilization Surgery: A Case Series 
260 |b North American Sports Medicine Institute,   |c 2022-10-01T00:00:00Z. 
500 |a 10.26603/001c.37865 
500 |a 2159-2896 
520 |a # Background Traumatic shoulder instability is a common injury in athletes and military personnel. Surgical stabilization reduces recurrence, but athletes often return to sport before recovering upper extremity rotational strength and sport-specific abilities. Blood flow restriction (BFR) may stimulate muscle growth without the need for heavy resistance training post-surgically. # Hypothesis/Purpose To observe changes in shoulder strength, self-reported function, upper extremity performance, and range of motion (ROM) in military cadets recovering from shoulder stabilization surgery who completed a standard rehabilitation program with six weeks of BFR training. # Study Design Prospective case series # Methods Military cadets who underwent shoulder stabilization surgery completed six weeks of upper extremity BFR training, beginning post-op week six. Primary outcomes were shoulder isometric strength and patient-reported function assessed at 6-weeks, 12-weeks, and 6-months postoperatively. Secondary outcomes included shoulder ROM assessed at each timepoint and the Closed Kinetic Chain Upper Extremity Stability Test (CKCUEST), the Upper Extremity Y-Balance Test (UQYBT), and the Unilateral Seated Shotput Test (USPT) assessed at the six-month follow-up. # Results Twenty cadets performed an average 10.9 BFR training sessions over six weeks. Statistically significant and clinically meaningful increases in surgical extremity external rotation strength (*p* \< 0.001; mean difference, .049; 95% CI: .021, .077), abduction strength (*p* \< 0.001; mean difference, .079; 95% CI: .050, .108), and internal rotation strength (*p \<* 0.001; mean difference, .060; CI: .028, .093) occurred from six to 12 weeks postoperatively. Statistically significant and clinically meaningful improvements were reported on the Single Assessment Numeric Evaluation (*p* \< 0.001; mean difference, 17.7; CI: 9.4, 25.9) and Shoulder Pain and Disability Index (*p* \< 0.001; mean difference, -31.1; CI: -44.2, -18.0) from six to 12 weeks postoperatively. Additionally, over 70 percent of participants met reference values on two to three performance tests at 6-months. # Conclusion While the degree of improvement attributable to the addition of BFR is unknown, the clinically meaningful improvements in shoulder strength, self-reported function, and upper extremity performance warrant further exploration of BFR during upper extremity rehabilitation. # Level of Evidence 4, Case Series 
546 |a EN 
690 |a Sports medicine 
690 |a RC1200-1245 
655 7 |a article  |2 local 
786 0 |n International Journal of Sports Physical Therapy, Vol 17, Iss 6 (2022) 
787 0 |n https://doi.org/10.26603/001c.37865 
787 0 |n https://doaj.org/toc/2159-2896 
856 4 1 |u https://doaj.org/article/8a5ad4e0a10a49b8a7a9e55d1f97f29f  |z Connect to this object online.