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https://www.readbyqxmd.com/read/29449002/shoulder-joint-kinetics-and-dynamics-during-underwater-forward-arm-elevation
#1
Jessy Lauer, João Paulo Vilas-Boas, Annie Hélène Rouard
Aquatic exercises are widely implemented into rehabilitation programs. However, both evaluating their mechanical demands on the musculoskeletal system and designing protocols to provide progressive loading are difficult tasks. This study reports for the first time shoulder joint kinetics and dynamics during underwater forward arm elevation performed at speeds ranging from 22.5 to 90°/s. Net joint moments projected onto anatomical axes of rotation, joint power, and joint work were calculated in 18 participants through a novel approach coupling numerical fluid flow simulations and inverse dynamics...
February 9, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29447302/in-throwers-with-posterior-instability-rotator-cuff-tears-are-common-but-do-not-affect-surgical-outcomes
#2
Justin W Arner, Michael P McClincy, James P Bradley
In a previous study, compared with throwing athletes with superior labral anterior posterior (SLAP) tears, those with concomitant SLAP tears and rotator cuff tears (RCTs) had significantly poorer outcome scores and return to play. Posterior shoulder instability also occurs in throwing athletes, but no studies currently exist regarding outcomes of these patients with concomitant RCTs. The authors hypothesized that throwing athletes treated with arthroscopic capsulolabral repair for posterior shoulder instability with coexistent rotator cuff pathology would have poorer outcome scores and return to play...
January 2018: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29447092/evolution-of-muscular-fatigue-in-periscapular-and-rotator-cuff-muscles-during-isokinetic-shoulder-rotations
#3
Sylvain Gaudet, Jonathan Tremblay, Fabien Dal Maso
To this day, how shoulder muscles react to a strong fatigue stimulus during dynamic shoulder rotations remains unknown. The aims of this study were to assess the effect of repeated maximal internal-external isokinetic shoulder rotations on shoulder strength and muscle activity. Twenty-four individuals completed a 50-repetition fatiguing isokinetic protocol while electromyography was recorded on eleven muscles of the shoulder girdle. Time-frequency transformation and an ANOVA model using statistical parametric mapping methods were used to analyze shifts in instantaneous median frequency (MDF) between each 10-repetition Blocks...
February 15, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29442159/open-reduction-and-fixation-with-a-locking-plate-without-bone-grafting-is-a-reasonable-and-safe-option-for-treating-proximal-humerus-nonunion
#4
Stefan Quadlbauer, Georg J Hofmann, Martin Leixnering, Rudolf Rosenauer, Thomas Hausner, Jürgen Reichetseder
AIM OF THE STUDY: The aim of this study was to evaluate union rate and clinical outcome in patients with proximal humeral nonunions treated by open reduction and locking plate fixation without bone grafting. METHODS: From 2011 to 2016, nine patients were treated using open reduction and locking plate stabilization without bone grafting. They were examined both clinically and radiologically, with a mean follow-up period of 31 months. Outcome was evaluated using pain and range of motion (ROM) parameters...
February 13, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29438625/biomechanical-evaluation-of-a-single-versus-double-tunnel-coracoclavicular-ligament-reconstruction-with-acromioclavicular-stabilization-for-acromioclavicular-joint-injuries
#5
Michael B Banffy, Carlos Uquillas, Julie A Neumann, Neal S ElAttrache
BACKGROUND: An anatomic double-tunnel (DT) reconstruction technique has been widely adopted to reconstruct the ruptured coracoclavicular (CC) ligaments seen with high-grade acromioclavicular (AC) joint injuries. However, the anatomic DT reconstruction has been associated with the risk of clavicle fractures, which may be problematic, particularly for contact athletes. Purpose/Hypothesis: The purpose was to compare a single-tunnel (ST) CC ligament reconstruction for AC joint injuries with the native state as well as with the more established anatomic DT CC ligament reconstruction...
February 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29437064/the-challenge-of-monteggia-like-lesions-of-the-elbow-mid-term-results-of-46-cases
#6
P Jungbluth, S Tanner, J Schneppendahl, J-P Grassmann, M Wild, M Hakimi, J Windolf, R Laun
AIMS: The aim of this retrospective multicentre study was to evaluate mid-term results of the operative treatment of Monteggia-like lesions and to determine the prognostic factors that influence the clinical and radiological outcome. PATIENTS AND METHODS: A total of 46 patients (27 women and 19 men), with a mean age of 57.7 years (18 to 84) who had sustained a Monteggia-like lesion were followed up clinically and radiologically after surgical treatment. The Mayo Modified Wrist Score (MMWS), Mayo Elbow Performance Score (MEPS), Broberg and Morrey Score, and Disabilities of the Arm, Shoulder and Hand (DASH) score were used for evaluation at a mean of 65 months (27 to 111) postoperatively...
February 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29435624/arthroscopic-soft-tissue-reconstruction-in-anterior-shoulder-instability
#7
REVIEW
R M Frank, A A Romeo
Anterior glenohumeral instability remains a difficult problem in the athletic and working patient populations. Treatment strategies are variable and range from nonoperative approaches incorporating immobilization and rehabilitation to surgical management. Surgical decision-making can be challenging, especially with a high-level patient who wishes to return to high-demand activities. Operative options range from open soft tissue stabilization to arthroscopic soft tissue stabilization, with both open and arthroscopic options for bony reconstruction in the setting of clinically significant anterior glenoid bone loss...
February 2018: Der Orthopäde
https://www.readbyqxmd.com/read/29434457/role-and-significance-of-trunk-and-upper-extremity-muscles-in-walker-assisted-paraplegic-gait-a-case-study
#8
Mina Baniasad, Farzam Farahmand, Mokhtar Arazpour, Hassan Zohoor
Background and Purpose: Understanding the role and significance of trunk and upper extremity muscles in paraplegic gait can help in designing more effective assistive devices for these patients and also provides valuable information for improving muscle strengthening programs. Methods: In a patient with a spinal cord injury (SCI) who could walk independently (rating scale of ambulatory capacity, 9) with the aid of bilateral ankle-foot orthosis and a walker, the kinematics, kinetics and electromyographic (EMG) activities of 16 muscles from the trunk and upper and lower extremities were recorded during gait...
2018: Topics in Spinal Cord Injury Rehabilitation
https://www.readbyqxmd.com/read/29430501/modified-internal-fixation-technique-for-acromio-clavicular-ac-joint-dislocation-the-hidden-knot-technique
#9
Hamidreza Aslani, Fateme Mirzaee, Zohreh Zafarani, Shahin Salehi
Acromioclavicular (AC) joint injuries are common and often seen in contact athletes, resulting from a fall on the shoulder tip with adducted arm. This joint is stabilized by both static and dynamic structures including the coracoclavicular (CC) ligament. Most reconstruction techniques focus on CC ligament augmentation as the primary stabilizer of the AC joint. The best surgical technique for some AC joint dislocations is still controversial. In this study, we explained a modification of the CC ligament reconstruction technique described by Wellmann...
January 2018: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29426741/lower-shoulder-abduction-during-throwing-motion-may-cause-forceful-internal-impingement-and-decreased-anterior-stability
#10
Masaki Akeda, Teruhisa Mihata, Woong Kyo Jeong, Michelle H McGarry, Tetsuya Yamazaki, Thay Q Lee
BACKGROUND: Internal impingement and decreased anterior stability, which result from shoulder capsular loosening, are common shoulder pathologies in throwing athletes. The purpose of this study was to assess the effect of shoulder abduction angle on shoulder internal impingement and anterior shoulder stability during the simulated throwing motion. METHODS: Eight cadaveric shoulders were tested by simulating the late-cocking and acceleration phases of the throwing motion for intact and thrower's shoulder conditions...
February 7, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29420806/a-history-of-shoulder-instability-in-the-military-where-we-have-been-and-what-we-have-learned
#11
Jared A Wolfe, Daniel L Christensen, Timothy C Mauntel, Brett D Owens, Lance E LeClere, Jonathan F Dickens
Introduction: Shoulder instability is one of the most common pathologies seen by the orthopedic sports medicine surgeon. With a uniquely young, high-demand patient population in the U.S. Military, the incidence of shoulder instability is remarkably more common than the civilian population. As such, military orthopedic surgeons and sports medicine and shoulder specialists have developed a unique understanding and experience of shoulder instability. The historical advances of shoulder instability in the military have been instrumental in understanding the epidemiology, evaluation, pathology, treatment of first-time shoulder subluxations and dislocations, operative and non-operative treatment options, arthroscopic and open stabilization methods, management of the in-season athlete, treatment of combined and circumferential labral pathology, and associated pathology...
February 6, 2018: Military Medicine
https://www.readbyqxmd.com/read/29420773/trends-in-surgical-management-of-anterior-shoulder-instability-increased-utilization-of-bone-augmentation-techniques%C3%A2
#12
Joseph W Galvin, Josef K Eichinger, Eric J Cotter, Alyssa R Greenhouse, Stephen A Parada, Brian R Waterman
Purpose: The purpose of this study is to evaluate the trends in surgical management for anterior shoulder instability in the U.S. Military. Methods: A retrospective analysis of military service members undergoing arthroscopic or open shoulder stabilization from 2012 to 2015 within the U.S. Military Health System was conducted. Demographic and surgical variables were extracted from the medical record. Chi-square and linear regression analysis were performed to identify temporal trends by surgical procedures and concomitant surgery...
February 6, 2018: Military Medicine
https://www.readbyqxmd.com/read/29416978/arthroscopic-transfer-of-the-long-head-of-the-biceps-brachii-for-anterior-shoulder-instability
#13
Jin Tang, Jinzhong Zhao
In the treatment of anterior shoulder instability, there are various conditions in which a sling effect is needed to enhance anterior stability. The traditional Latarjet procedure provides a sling effect but destroys the coracoacromial arch, which may result in superior instability. To preserve the coracoacromial arch and create a sling to enhance the anterior-inferior side of the shoulder, we introduce an arthroscopic technique to transfer the long head of the biceps (LHB) brachii. Indications of LHB transfer are patients younger than 45 years of age who participate in competitive sports, require forceful external rotation and abduction movement of the shoulder, and/or have capsule-ligament insufficiency, as well as patients 45 years o or older who have combined SLAP lesions (type II or IV)...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29415617/sagittal-band-reconstruction-in-the-index-finger-using-a-modified-elson-technique
#14
Nobuyuki Takahashi, Kousuke Iba, Megumi Hanaka, Yasuhiro Ozasa, Kohei Kanaya, Toshihiko Yamashita
PURPOSE: The Elson technique is a rigid reconstruction method for a hypoplastic or absent sagittal band in the treatment of chronic extensor digitorum communis (EDC) tendon dislocation. We performed a modified procedure based on the Elson technique for reconstruction of the radial sagittal band in case involving the index finger. We investigated the postoperative outcomes of chronic EDC dislocation after treatment with the original and modified Elson technique. METHODS: We examined five fingers of five patients (2 males and 3 females) with a mean age of 41 years...
January 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29413183/editorial-commentary-is-arthroscopic-bone-grafting-nearly-equivalent-to-open-bone-grafting-for-glenoid-bone-defects-in-recurrent-anterior-shoulder-instability
#15
EDITORIAL
Matthew T Provencher
Arthroscopic techniques are an emerging technology to deal with glenoid bone defects in patients with anterior shoulder instability, and improvements are being made to safely minimize the risk of injury to the anterior neurovascular structures including the axillary nerve. Arthroscopic glenoid reconstruction is a technically demanding procedure, but it does have promising short-term outcomes. I truly like the concept of anterior (and also posterior) bone grafting for defects of the glenoid, including the arthroscopic Latarjet...
February 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29410596/immediate-effects-of-scapular-stabilizing-exercise-in-chronic-stroke-patient-with-winging-and-elevated-scapula-a-case-study
#16
Si-Eun Park, Yang-Rae Kim, Yong-Youn Kim
[Purpose] The purpose of this study was to investigate the effect of scapular stabilizing exercise in a stroke patient with winging and elevated scapula. [Subject and Methods] The subject was a 46-year-old female with a history of stroke. She had right side hemiplegia with winging and elevated scapula on the right side, and had compensatory motions of the neck and shoulder when using the paretic upper extremity. The subject participated in scapular stabilizing exercises for four days. This exercise program consisted of scapular protraction-retraction in an upright seated position...
January 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29410562/effects-of-microcurrent-and-cryotherapy-on-c-reactive-protein-levels-and-muscle-tone-of-patients-with-rotator-cuff-reconstruction
#17
Jeong-Il Kang, Dae-Keun Jeong, Hyun Choi
[Purpose] The purpose of the present study was to apply early intervention via microcurrent and cryotherapy in patients who underwent rotator cuff reconstruction surgery, and to investigate the effects of such interventions on pain and inflammation levels based on the analysis of C-reactive protein (CRP) levels, and on changes in muscle tone. [Subjects and Methods] The study population consisted of 30 patients who had undergone rotator cuff reconstruction surgery, with 10 patients each assigned to the control, experimental I (E-1), and experimental II (E-II) groups...
January 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29409412/metacarpophalangeal-joint-arthroplasty-using-flexible-hinge-toe-implant-with-grommets-for-boutonni%C3%A3-re-deformity-of-rheumatoid-thumb
#18
Tetsuya Nemoto, Hajime Ishikawa, Asami Abe, Kiyoshi Nakazono, Hiroshi Otani, Hyunho Lee, Akira Murasawa, Yoichi Toyoshima, Katsunori Inagaki
BACKGROUND: MP joint arthroplasty is one of the treatment options for the rheumatoid thumb with boutonniere deformity. The use of flexible hinge toe implant for MP joint reconstruction was introduced; however, the outcome of flexible toe implantation for the reconstruction of the MP joint has not as yet been reported in detail. Therefore, in this study, we retrospectively investigated the clinical outcome and radiological findings. METHODS: We assessed 56 Swanson implant arthroplasties that used flexible hinge toe implants with grommets to address boutonnière deformity of the thumb MP joint...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29405822/incidence-of-shoulder-injury-in-elite-wheelchair-athletes-differ-between-sports-a-critically-appraised-topic
#19
Jessica R Fairbairn, Kellie C Huxel Bliven
Clinical Scenario: Until recently, injury epidemiology data on elite Paralympic athletes was limited. Current data suggests high rates of shoulder injury in wheelchair athletes. Differences in shoulder injury rates between sports have not been reported in this population. CLINICAL QUESTION: Is the incidence of shoulder injury in elite wheelchair athletes different between sports? Summary of Key Findings: Shoulder injury rates are high in elite wheelchair athletes, particularly in sports such as field events and fencing that require a stable base (eg, trunk, core control) from which to perform...
February 6, 2018: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29402585/modified-latarjet-procedure-without-capsulolabral-repair-for-the-treatment-of-failed-previous-operative-stabilizations-in-athletes
#20
Maximiliano Ranalletta, Luciano A Rossi, Agustin Bertona, Ignacio Tanoira, Gastón D Maignon, Santiago L Bongiovanni
PURPOSE: To analyze time to return to sport, functional outcomes, and recurrences of the modified Latarjet procedure without capsulolabral repair in athletes with recurrent anterior shoulder instability after a failed previous operative stabilization. METHODS: We included athletes with recurrent anterior shoulder instability with a previous failed operative stabilization treated with the modified Latarjet procedure without capsulolabral repair with a minimum of 2-year follow-up...
February 3, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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