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Lucy S. Kember, Rhodri S. Lloyd, Gregory D. Myer, and Isabel S. Moore

changes being observed, making within-group comparisons difficult. 5 Using a trial stabilization technique, it may be possible to determine the number of successive jumping cycles necessary to achieve kinetic stability. Therefore, the main aim of this study was to provide a descriptive analysis of the

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Jeffery T. Podraza and Scott C. White


Isolated atraumatic posterior glenohumeral instability is rare. Use of thermal capsulorraphy for glenohumeral instability is considered controversial. This case study describes a modified rehabilitation protocol for a patient who underwent a multistep arthroscopic procedure for isolated posterior glenohumeral instability with a postoperative complication of adhesive capsulitis.

Case Description:

A 30-y-old man with a 15-y history of bilateral posterior glenohumeral instability related to generalized hypermobility underwent right-shoulder arthroscopy consisting of a combined posterior labral repair, capsular imbrication, and thermal capsulorraphy. A gunslinger orthosis was prescribed for 6 wk of immobilization. Adhesive capsulitis was diagnosed at the 5-wk postoperative visit and immobilization was discontinued. A modified treatment protocol was devised to address both the surgical procedures performed and the adhesive capsulitis. Residual symptoms resolved with release of an adhesion while stretching 10 months postoperatively.


Scores of 5 shoulder-assessment tools improved from poor to excellent/good with subjective report of a very good outcome.


The complication of adhesive capsulitis required an individualized treatment protocol. In contrast to the standard protocol, our modified approach allowed more time to be spent in each phase of the program, was aggressive with restoring range of motion (ROM) without excessively stressing the posterior capsule, and allowed the patient to progress to activities that were tolerated regardless of protocol phase. Shoulder stiffness or frank adhesive capsulitis after stabilization, as in this case, requires a more aggressive modification to prevent permanent ROM limitations. Conversely, patients with early rapid gains in ROM must be protected from overstretching the repaired tissue with a program that allows functional motion to be incorporated over a longer time frame. This study indicates the use of thermal capsulorraphy as a viable surgical modality when it is used judiciously with the proper postoperative restrictions and rehabilitation.

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Kyung-eun Lee, Seung-min Baik, Chung-hwi Yi, Oh-yun Kwon, and Heon-seock Cynn

oblique (EO), lumbar multifidus (MF), longissimus thoracis (LgT), and Gmed to understand the activation of trunk and hip muscles during side bridge exercises to facilitate clinical decision making. According to the role in stabilization exercises, the trunk muscles could be divided into local and global

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Seok-Hyun Kim, Heon-Seock Cynn, Chung-Hwi Yi, Ji-Hyun Lee, and Seung-Min Baik

activate other shoulder muscles such as PM and UT to compensate for weak SA during protraction and arm elevation. 18 , 25 In this study, IHA primarily demands more load on SA to dynamically stabilize the scapula during exercises with IHA. 8 , 13 Especially, during WS, IHA may have generated rotatory

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Kyle B. Kosik, Kyeongtak Song, Phillip A. Gribble, Matthew C. Hoch, and Arjun Srinath

instability. 3 Most people with CAI never actively seek medical treatment until later in life, when surgical intervention is typically required. In response to this, decades of research have led to the development of lateral joint stabilization surgeries that largely produce good or excellent short-term and

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Landon B. Lempke, Matthew C. Hoch, Jarrod A. Call, Julianne D. Schmidt, and Robert C. Lynall

using variations of jumping, cutting, and single-limb rapid acceleration–deceleration tasks, such as single-leg hop stabilization tasks, may better emulate movement need for sport. 23 Thus, the ecological validity of sport-related functional movements is established, but limited evidence exists

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Michelle A. Sandrey

where instability tests would be valued 2 , 10 , 11 : lumbar spondylolisthesis 10 and the stabilization classification group. 1 , 2 , 11 , 12 In the stabilization classification group, lumbar segmental instability may be apparent along with other clinical signs such as aberrant movement, Gower’s sign

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Kyle B. Kosik, Kathryn Lucas, Matthew C. Hoch, Jacob T. Hartzell, Katherine A. Bain, and Phillip A. Gribble

landing tasks have been used to evaluate the effects of CAI on dynamic postural stability. 12 – 14 Time to stabilization (TTS) is one common method utilized to quantify dynamic postural stability by using ground reaction force (GRF) data collected with instrumented force plates. 15 , 16 TTS estimates

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Yong Wook Kim, Na Young Kim, Won Hyuk Chang, and Sang Chul Lee

damaged sensory receptors and changed muscular adjustment patterns, trigger instability in postural balance and limited trunk movement adjustment. 6 The traditional stabilizing exercise interventions are successful at treating LBP; however, there is often recurrence of LBP that has been illustrated in

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Fariba Hasanbarani and Mark L. Latash

variable (orthogonal to the UCM, V ORT ). The inequality V UCM  >  V ORT has been viewed as a sign of a synergy at the level of EVs stabilizing the salient PV. Most studies used the framework of the UCM hypothesis to explore relatively artificial laboratory tasks or well-practiced tasks, such as walking