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Jong Pil Yoon, Chang-Hwa Lee, Jae Wook Jung, Hyun-Joo Lee, Yong-Soo Lee, Ja-Yeon Kim, Ga Young Park, Jin Hyun Choi, Seok Won Chung
BACKGROUND: The failure rate for healing after rotator cuff repair is relatively high. PURPOSE: To establish a system for sustained release of transforming growth factor β1 (TGF-β1) using an alginate scaffold and evaluate the effects of the sustained release of TGF-β1 on rotator cuff healing in a rabbit model. STUDY DESIGN: Controlled laboratory study. METHODS: Before the in vivo animal study, a standard MTS assay was performed to evaluate cell proliferation and metabolic activity on the alginate scaffold...
March 1, 2018: American Journal of Sports Medicine
Hyun-Kyung Do, Joong-Hoon Lee, Jae-Young Lim
OBJECTIVE: Polydeoxyribonucleotide as adenosine receptor (A2A ) agonist has been used in plastic surgery and dermatology related to its regenerative property. The aim of this pilot study is to evaluate the safety and efficacy of polydeoxynucleotide injection in patients with rotator cuff tears by a variety of outcomes including pain, disability, physical performance test, and ultrasonography (US). METHODS: Seventeen patients (9 men, 8 women, age: 57.9 ± 9.1) with partial-thickness tear of supraspinatus tendon were evaluated in a prospective, open-label, and pre-and-post study...
March 14, 2018: Physician and Sportsmedicine
Sangeeta Rathi, Nicholas F Taylor, Brendan Soo, Rodney A Green
OBJECTIVES: To determine whether patients with symptomatic rotator cuff pathology had more glenohumeral joint translation and different patterns of rotator cuff muscle activity compared to controls. DESIGN: Repeated measurements of glenohumeral translation and muscle activity in two positions and six testing conditions in two groups. METHODS: Twenty participants with a symptomatic and diagnosed rotator cuff tear and 20 age, and gender matched controls were included...
March 2, 2018: Journal of Science and Medicine in Sport
Arel Gereli, Baris Kocaoglu, Tekin Kerem Ulku, Sena Silay, Evren Kilinc, Serap Uslu, Ufuk Nalbantoglu
PURPOSE: Little information is available regarding the healing capacity of in situ and completion repair for the treatment of partial thickness rotator cuff tears. The purpose of the study was to analyze the healing characteristics of both techniques. METHODS: Twenty-four adult Sprague-Dawley rats were operated. Partial thickness bursal side tears were created bilaterally at the supraspinatus tendons. Additional 6 rats were used as the sham group. The right shoulders were repaired in situ, and the left shoulders were repaired using the tear completion technique on the 10th day after detachment surgery...
March 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Philippe Marty, Fabrice Ferré, Bertrand Basset, Constance Marquis, Benoit Bataille, Martine Chaubard, Mehdi Merouani, Olivier Rontes, Alain Delbos
PURPOSE: Ambulatory process in arthroscopic shoulder surgery has boomed over past decades. Some anesthetic techniques such as interscalene block (ISB) and its surrogates are associated with diaphragmatic paralysis and might compromise outpatient procedure. HYPOTHESIS: This study aims to assess consequences of diaphragmatic paralysis in obese patients. METHODS: This prospective observational study screened patients with body mass index (BMI) ≥ 30 kg/m2 undergoing acromioplasty or supraspinatus tendon repair...
March 6, 2018: Journal of Anesthesia
Kenneth W Donohue, Eric T Ricchetti, Jason C Ho, Joseph P Iannotti
BACKGROUND: Glenoid morphology and rotator cuff muscle quality are important anatomic factors that can impact longevity of the glenoid component following total shoulder arthroplasty (TSA). We hypothesized that rotator cuff muscle fatty infiltration is associated with increased pathologic glenoid bone loss in glenohumeral osteoarthritis (OA). METHODS: We retrospectively reviewed 190 preoperative computed tomography (CT) scans of 175 patients (mean age, 66 years; range, 44 to 90 years) who underwent TSA for the treatment of primary glenohumeral OA...
March 7, 2018: Journal of Bone and Joint Surgery. American Volume
Yang-Soo Kim, Hyo-Jin Lee, Jong-Ho Kim, Dong-Young Noh
BACKGROUND: Patients with partial-thickness rotator cuff tears (PTRCTs) can be treated nonoperatively and/or undergo operative treatment, but the ideal time for surgical intervention is unclear. PURPOSE: The purpose is to compare the results of immediate arthroscopic rotator cuff repair with repair after 6 months of nonoperative care of PTRCTs involving more than 50% of the tendon thickness. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2...
March 1, 2018: American Journal of Sports Medicine
Muhammad Younus Khan Durrani, Amir Humza Sohail, Inamullah Khan, Pervaiz Hashmi
Various shoulder bone deformities have been identified in the pediatric age group, with the most common being undescended scapula. Sprengel's deformity is dysplasia and malposition of the scapula, especially in the supraspinatus portion, mainly due to abnormal descent in the embryonic period. The clavicle is shorter and has a different contour. In some patients cervical spine deformities are also noted. This is a case of 3 years old girl presented to the clinic with difficulty in abducting right shoulder and sleeping with an internal rotation of the right arm...
January 2018: Journal of Ayub Medical College, Abbottabad: JAMC
Egbert J D Veen, Cornelia M Donders, Robin E Westerbeek, Rosalie P H Derks, Ellie B M Landman, Cornelis T Koorevaar
BACKGROUND: A magnetic resonance imaging (MRI) scan of the shoulder can have added value in diagnosing symptomatic osteoarthritis of the acromioclavicular (AC) joint. Specific MRI signs have been recognized but not analyzed extensively before. This study aims to identify predictive MRI signs in patients with symptomatic AC osteoarthritis. METHODS: The MRI scans of 70 patients with symptomatic AC osteoarthritis were compared with those of 70 patients with subacromial pain syndrome and no clinical signs of symptomatic AC osteoarthritis...
February 28, 2018: Journal of Shoulder and Elbow Surgery
Jeremy Lewis
In 1972, American orthopaedic surgeon Charles Neer published his seminal paper, "Anterior Acromioplasty for the Chronic Impingement Syndrome in the Shoulder: A Preliminary Report." It wasn't a robust scientific paper; however, it changed the direction of orthopaedic practice for the next half century. Neer argued that a primary cause of shoulder pain was attrition of the supraspinatus tendon and related structures from the overlying acromion, especially when the arm was elevated. Neer recommended surgical removal to stop the impingement, and over the last half century, it could be argued that millions of people around the globe would have undergone acromioplasty surgery to stop this portion of the bone impinging onto the soft tissues located in the subacromial space...
March 2018: Journal of Orthopaedic and Sports Physical Therapy
George L Vestermark, Bryce A Van Doren, Patrick M Connor, James E Fleischli, Dana P Piasecki, Nady Hamid
BACKGROUND: The prevalence and severity of concomitant rotator cuff pathology in the setting of proximal biceps tendon ruptures are poorly understood. Concomitant rotator cuff disease may have important implications in the prognosis and natural history of this shoulder condition. Therefore, an observational cohort of patients with an acute rupture of the long head of the biceps tendon (LHBT) was evaluated to determine the prevalence and severity of concomitant rotator cuff disease. METHODS: Thirty consecutive patients diagnosed with acute proximal biceps tendon rupture were prospectively enrolled...
February 22, 2018: Journal of Shoulder and Elbow Surgery
Lluís Sánchez, Elsa Beltrán, Alberta de Stefani, Ling T Guo, Anita Shea, G Diane Shelton, Luisa De Risio, Louise M Burmeister
Four full-sibling intact male Miniature Poodles were evaluated at 4-19 months of age. One was clinically normal and three were affected. All affected dogs were reluctant to exercise and had generalised muscle atrophy, a stiff gait and a markedly elevated serum creatine kinase activity. Two affected dogs also showed poor development, learning difficulties and episodes of abnormal behaviour. In these two dogs, investigations into forebrain structural and metabolic diseases were unremarkable; electromyography demonstrated fibrillation potentials and complex repetitive discharges in the infraspinatus, supraspinatus and epaxial muscles...
2018: PloS One
Toru Morihara, Yoshikazu Kida, Ryuhei Furukawa, Tsuyoshi Sukenari, Yukichi Kabuto, Masao Kurokawa, Hiroyoshi Fujiwara, Toshikazu Kubo
BACKGROUND: In cases of the large or massive rotator cuff tears, retear rates after rotator cuff repairs remain high. We introduced an arthroscopic-assisted modified Debeyre-Patte procedure which enables to decrease the tension of torn rotator cuff by sliding supraspinatus and infraspinatus laterally keeping fascia connection to the rhomboids. PURPOSE: The objective of this study was to examine the clinical outcomes and retear rates after an arthroscopic-assisted modified Debeyre-Patte procedure for irreparable large and massive rotator cuff tears...
February 16, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Amir H Lebaschi, Xiang-Hua Deng, Christopher L Camp, Jianchun Zong, Guang-Ting Cong, Camila B Carballo, Zoe Album, Scott A Rodeo
PURPOSE: To develop a clinically relevant, robust murine model of rotator cuff tendon repair to examine cellular and molecular mechanisms of healing. METHODS: Sixty C57BL/6 male mice underwent rotator cuff transection and repair using microsurgical techniques. A modified Kessler suturing technique was used prior to tendon detachment. Sutures were passed through 2 intersecting bone tunnels that were made at the tendon attachment site. Mice were sacrificed at 2 and 4 weeks with subsequent biomechanical, histologic, micro-CT, and gene expression evaluations...
February 16, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Fernanda A P Habechian, Kim Van Malderen, Paula R Camargo, Ann M Cools
BACKGROUND: The shoulder complex is highly loaded during swimming. No studies were found analyzing the changes in shoulder girdle strength in young swimmers, through the years. OBJECTIVE: To analyze the changes in strength of internal rotators and external rotators of the arm, lower trapezius and supraspinatus and in the external rotators/internal rotators ratio in young elite swimmers through 3 years. METHODS: 31 adolescent elite swimmers (14-18 years, of both sexes) participated in the study...
February 6, 2018: Brazilian Journal of Physical Therapy
Matthew P Noyes, Evan Lederman, Christopher R Adams, Patrick J Denard
PURPOSE: To compare the biomechanical properties of single-row repair with triple-loaded (TL) anchor repair versus a knotless rip stop (KRS) repair in a rotator cuff repair model. METHODS: Rotator cuff tears were created in 8 cadaveric matched-pair specimens and repaired with a TL anchor or KRS construct. In the TL construct, anchors were placed in the greater tuberosity and then all suture limbs were passed through the rotator cuff as simple sutures and tied. In the KRS construct, a 2-mm suture tape was passed through the tendon in an inverted mattress fashion, and a free suture was passed medial to the suture tape to create a rip-stop...
February 15, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Mehmet Cetinkaya, Muhammet Baybars Ataoglu, Mustafa Ozer, Tacettin Ayanoglu, Ali Yusuf Oner, Ulunay Kanatli
OBJECTIVES: The aim of this study was to analyse the effect of subscapularis tear on superior humeral excursion (SHE) and acromiohumeral distance (AHD). The hypothesis was that subscapularis tears do not result in superior humeral excursion. METHODS: Patients who underwent shoulder arthroscopy between August of 2011 and 2015 were reevaluated. Those with isolated Bankart lesion were used as control group and included in the Group 1, isolated full-thickness supraspinatus tear in the Group 2, isolated subscapularis tear in the Group 3, and combined subscapularis and supraspinatus tear in the Group 4...
February 13, 2018: Acta Orthopaedica et Traumatologica Turcica
Anna Jungwirth-Weinberger, Christian Gerber, Glenn Boyce, Thorsten Jentzsch, Simon Roner, Dominik C Meyer
Background: Passive glenohumeral range of motion may be characteristically limited to specific shoulder pathologies. While pain associated with loss of range of passive external glenohumeral rotation is recognized as a salient feature in adhesive capsulitis, restriction of glenohumeral range of motion in calcific tendinitis of the supraspinatus tendon has never been studied. Hypothesis: On the basis of clinical observation, we hypothesized that calcific tendinitis of the supraspinatus tendon is associated with loss of passive glenohumeral abduction without loss of external rotation...
February 2018: Orthopaedic Journal of Sports Medicine
Daniel Cury Ribeiro, Ashleigh Day, Clark R Dickerson
Objectives: To assess: (1) the presence of any carry-over effect between interventions; (2) the immediate effects of inferior shoulder mobilization on shoulder and scapular muscle activity; and (3) to compare muscle activity response between the control and mobilization conditions. Repeated measures, cross-over, pre-post intervention study with sample of convenience. Methods: Twenty-two asymptomatic individuals performed 10 repetitions of shoulder abduction before and after the control and mobilization, with a dosage of three sets of 30-s duration, with grade-IV...
December 2017: Journal of Manual & Manipulative Therapy
Cecilie P Schrøder, Kirsten Lundgreen, Rune Kvakestad
BACKGROUND: Paralabral cysts emanating from posterosuperior labral tears may compress the suprascapular nerve and induce neuropathy. This study prospectively assessed patients with labral tears and symptomatic paralabral cysts treated with isolated labral repair. Pain relief, time to cyst resolution, reversibility of muscular edema, atrophy, fatty infiltration, and bone erosion were evaluated. METHODS: Forty-seven patients with symptomatic posterosuperior paralabral cysts were treated with isolated labral repair...
February 13, 2018: Journal of Shoulder and Elbow Surgery
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