32,644 results match your criteria Shoulder Joint


3D Zero Echo Time (ZTE) MRI versus 3D CT for Glenoid Bone Assessment.

Arthroscopy 2020 Jun 2. Epub 2020 Jun 2.

Radiology Service, VA San Diego Healthcare System, San Diego, CA 92161; Department of Radiology, University of California, San Diego Medical Center, San Diego, CA 92103.

Purpose: To evaluate the 3D ZTE MRI technique and compare with 3D CT for the assessment of the glenoid bone.

Methods: ZTE MRI using multiple resolutions and multislice CT was performed on six shoulder specimens before and after creation of glenoid defects and ten glenohumeral instability patients. Two musculoskeletal radiologists independently generated 3D volume rendered images of the glenoid en face. Read More

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http://dx.doi.org/10.1016/j.arthro.2020.05.042DOI Listing

Evaluating Correlations of CHL Thickness with Restricted Shoulder ROM and Clinical Duration of AC with Ultrasound Measurements.

PM R 2020 Jun 5. Epub 2020 Jun 5.

Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital, Taipei, Taiwan.

Objectives: The primary objective of this study is to evaluate the correlation between coracohumeral ligament (CHL) thickness and restricted shoulder range of motion (ROM) in patients with adhesive capsulitis (AC) using ultrasound measurements. The secondary objective is to investigate the correlation between CHL thickness and disease duration.

Design: Prospective cross-sectional survey. Read More

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http://dx.doi.org/10.1002/pmrj.12432DOI Listing

Radial collateral ligament repair of the thumb: long-term outcomes and predictive factors of postoperative deficits.

Arch Orthop Trauma Surg 2020 Jun 4. Epub 2020 Jun 4.

Department of Hand-, Plastic and Reconstructive Surgery, Microsurgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwig-Guttmann-Str. 13, 67071, Ludwigshafen, Germany.

Background: The thumb's radial collateral ligament (RCL) plays an important role in stabilizing the first metacarpophalangeal joint (MCP-1). RCL injuries are rare and treatment recommendations are inconsistent in the current literature. The aim of this study was to report on long-term outcomes following surgical repair of thumb RCL tear and to identify prognostic risk factors for treatment failure. Read More

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http://dx.doi.org/10.1007/s00402-020-03509-0DOI Listing

Kinematic bidimensional analysis of the propulsion technique in wheelchair rugby athletes.

Eur J Transl Myol 2020 Apr 1;30(1):8902. Epub 2020 Apr 1.

Physical medicine and rehabilitation School, Neuroscience Department, Padova University, Italy.

Wheelchair rugby is a sport ideated for individuals with cervical spinal cord injury (CSCI) which is extremely important for maintaining their neuromuscular abilities and improving their social and psychological wellbeing. However, due to the frequent changes in direction and speed it considerably stresses the players' upper limbs. 13 athletes have undergone two sports-related tests on an inertial drum bench and several kinematic parameters have been registered. Read More

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http://dx.doi.org/10.4081/ejtm.2019.8902DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7254415PMC

A biomechanical confirmation of the relationship between critical shoulder angle (CSA) and articular joint loading.

J Shoulder Elbow Surg 2020 Jun 1. Epub 2020 Jun 1.

Department of Orthopaedic Surgery and Traumatology, Hôpital Gabriel Montpied, Clermont-Ferrand, France.

Background: The critical shoulder angle (CSA) has been shown to be correlated with shoulder disease states. The biomechanical hypothesis to explain this correlation is that the CSA changes the shear and compressive forces on the shoulder. The objective of this study is to test this hypothesis by use of a validated computational shoulder model. Read More

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http://dx.doi.org/10.1016/j.jse.2020.03.002DOI Listing

Cutibacterium acnes: a threat to shoulder surgery or an orthopedic red herring?

J Shoulder Elbow Surg 2020 Jun 1. Epub 2020 Jun 1.

Department of Orthopaedic Surgery, The Rothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.

Cutibacterium acnes is a lipophilic, anaerobic, gram-positive bacillus that mainly colonizes the pilosebaceous glands of human skin. It has been implicated as the leading cause of prosthetic joint infection (PJI) after shoulder arthroplasty. However, PJI caused by C acnes rarely manifests as overt clinical, laboratory, or imaging features. Read More

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http://dx.doi.org/10.1016/j.jse.2020.02.020DOI Listing

Reverse shoulder replacement: a day-case procedure.

JSES Int 2020 Jun 29;4(2):397-399. Epub 2020 Apr 29.

Department of Trauma and Orthopaedics, Bedford Hospital NHS Trust, Bedford, United Kingdom.

Background And Hypothesis: Reverse shoulder arthroplasty (RSA) is an increasingly popular treatment modality for glenohumeral joint arthritis in association with rotator cuff arthropathy. A prolonged hospital stay following joint arthroplasty risks increased complications for patients plus financial implications for institutions. We hypothesized that RSA could be safely and effectively carried out as an outpatient procedure with reduced risks to patients and institutional costs. Read More

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http://dx.doi.org/10.1016/j.jseint.2020.01.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256897PMC

Efficacy of local infiltration anesthesia versus interscalene nerve blockade for total shoulder arthroplasty.

JSES Int 2020 Jun 3;4(2):357-361. Epub 2020 Mar 3.

Department of Orthopedics, Penn State Hershey Medical Center, Hershey, PA, USA.

Background: Optimal modalities for pain control in shoulder arthroplasty are not yet established. Although regional nerve blockade has been a well-accepted modality, complications and rebound pain have led some surgeons to seek other pain control modalities. Local injection of anesthetics has recently gained popularity in joint arthroplasty. Read More

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http://dx.doi.org/10.1016/j.jseint.2019.12.007DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256779PMC

A new pathophysiology of atraumatic rotator cuff tears: adduction restriction of the glenohumeral joint.

JSES Int 2020 Jun 27;4(2):333-340. Epub 2020 Apr 27.

Department of Orthopaedic Surgery, East Japan Railway Sendai Hospital, Miyagi, Japan.

Background: The pathophysiology of atraumatic rotator cuff tears (ATTs) has not been fully understood. Adduction restriction of the glenohumeral joint can cause pain and disability in patients with ATTs. We aimed to use our adduction test (pushing the humerus toward the side in the coronal plane with scapular fixation) to fluoroscopically measure the glenohumeral adduction angle (GAA) and to assess the effectiveness of adduction manipulation. Read More

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http://dx.doi.org/10.1016/j.jseint.2020.02.003DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256894PMC

Surgical anatomy of the pectoralis major tendon insertion revisited: relationship to nearby structures and the pectoral eminence for defining the anatomic footprint.

JSES Int 2020 Jun 7;4(2):324-332. Epub 2020 May 7.

Section of Orthopaedic Surgery, Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Background: Intraoperative identification of the normal pectoralis major (PM) footprint can be challenging to identify in the acute and chronic settings. The purpose of this study was to revisit the anatomic footprint of the PM tendon and to determine which nearby landmarks can be used to re-create the normal insertion site during anatomic repair or reconstruction.

Methods: Twenty-one fresh-frozen human cadaveric shoulder specimens were used to define the PM tendon width (ie, superior-to-inferior) and to determine the relationship between the superior aspect of the PM insertion and that of the latissimus dorsi (LD) and anterior deltoid (AD) tendons. Read More

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http://dx.doi.org/10.1016/j.jseint.2020.02.010DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256899PMC

Acromioclavicular joint dislocations: incidence, injury profile, and patient characteristics from a prospective case series.

JSES Int 2020 Jun 8;4(2):246-250. Epub 2020 Apr 8.

Department of Orthopedics, Lund University, Helsingborg Hospital, Helsingborg, Sweden.

Background: Acromioclavicular joint (ACJ) dislocations are common but evidence regarding the epidemiology of these injuries is incomplete. This study aims to describe the incidence, injury mechanisms, distribution of classifications, risk factors, and patient characteristics for ACJ dislocations in a general population.

Methods: Inclusion was performed prospectively during a 4-year period with the following criteria; age 18-75 years, shoulder trauma within 2 weeks, a clinical suspicion of ACJ dislocation, and radiographs that excluded fracture. Read More

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http://dx.doi.org/10.1016/j.jseint.2020.01.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256880PMC

Methods used to assess the severity of acromioclavicular joint separations in Japan: a survey.

JSES Int 2020 Jun 13;4(2):242-245. Epub 2020 Feb 13.

Scientific Research Project Committee of the Japan Shoulder Society, Tokyo, Japan.

Background: In acromioclavicular joint (ACJ) separations, patient characteristics determine the indications for surgery. However, in Japan, classification methods used to assess the severity of ACJ separations differ between institutions, and even within a classification method, different interpretations can lead to different assessments of severity. Therefore, in this study, we conducted an email survey of Japan Shoulder Society (JSS) members regarding their assessment methods for ACJ separation severity. Read More

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http://dx.doi.org/10.1016/j.jseint.2019.11.006DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256793PMC

Stenotrophomonas maltophilia periprosthetic joint infection after reverse total shoulder arthroplasty.

IDCases 2020 14;21:e00796. Epub 2020 May 14.

The Department of Orthopaedic Surgery Faculty of Medicine, School of Health Sciences, University of Hospital of Larissa, Larissa, Greece.

is a well-known opportunistic Gram-negative bacterium causing mainly hospital-acquired infections, . We report the first case, to our knowledge, of a periprosthetic infection caused by this pathogen in an artificial joint. has the ability to form biofilm, and subsequently should not be excluded in the investigation of prosthetic joint infections. Read More

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http://dx.doi.org/10.1016/j.idcr.2020.e00796DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7256290PMC

Three-Dimensional Morphometric Analysis of Penetrative Depth and Size of Nonarthritic and Degenerative Arthritic Glenoids: Implications for Glenoid Replacement in Shoulder Arthroplasty.

Clin Orthop Surg 2020 Jun 14;12(2):224-231. Epub 2020 May 14.

Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Background: Shoulder arthroplasty is technically demanding and relies heavily on the precision of surgical techniques. Proper glenoid component sizing plays a crucial role in successful shoulder arthroplasty. We measured the size and penetrative depth of the glenoid for peg or screw fixation in nonarthritic and degenerative arthritic shoulders by using three-dimensional computed tomography to determine the reference dimensions of the glenoid in nonarthritic and degenerative arthritic shoulders. Read More

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http://dx.doi.org/10.4055/cios19088DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7237260PMC

Effects of Glenoid and Humeral Bone Defects on Recurrent Anterior Instability of the Shoulder.

Clin Orthop Surg 2020 Jun 14;12(2):145-150. Epub 2020 May 14.

Department of Orthopedic Surgery, Ewha Womans University Seoul Hospital, Ewha Womans University School of Medicine, Seoul, Korea.

For proper treatment of recurrent anterior instability of the shoulder with a bone defect, the defect size should be assessed preoperatively with three-dimensional computed tomography or magnetic resonance imaging. In general, the risk of postoperative recurrence of instability is estimated on the basis of preoperative imaging of bipolar bone defects: more than 20%-25% glenoid bone loss and off-track Hill-Sachs lesions have been considered risk factors for recurrence. In patients with a glenoid bone defect more than 20%-25%, a bone graft procedure, such as the Latarjet procedure, is preferred regardless of the glenoid track concept, because compared with arthroscopic stabilization procedure, it provides greater postoperative stability. Read More

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http://dx.doi.org/10.4055/cios19060DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7237246PMC

Study of Medical Ultrasound for Rhizarthrosis (SUR): study protocol for a randomized controlled single-center pilot-trial.

Trials 2020 Jun 1;21(1):450. Epub 2020 Jun 1.

Department of Hand Surgery, Upper Extremity and Foot Surgery, Center for Orthopedics and Trauma Surgery, Hospital Waldfriede, Argentinische Allee 40, 14163, Berlin, Germany.

Background: Rhizarthrosis (trapeziometacarpal osteoarthritis) is the second most common site of osteoarthritis in the hand affecting 10-30% of adults over the age of 50. Up to four times as many women as men have rhizarthrosis. Clinical symptoms include functional disability of the thumb, pain, joint swelling, and reduced strength. Read More

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http://dx.doi.org/10.1186/s13063-020-04375-2DOI Listing

[Isolated biceps tenodesis by double row for pulley lesions].

Zhonghua Yi Xue Za Zhi 2020 Jun;100(21):1648-1653

Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, China.

To explore clinical outcome of isolated arthroscopic biceps tenodesis by double row for pulley lesions. Forty-nine patients with pulley lesions were treated from July 2017 to June 2018 in the Department of Sport Medicine, the Affiliated Zhongshan Hospital of Dalian University by isolated arthroscopic biceps tenodesis by double row. Patients were divided into 2 groups according to the intraoperative damage of the pulley system. Read More

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http://dx.doi.org/10.3760/cma.j.cn112137-20191106-02411DOI Listing

An Unusual Presentation of a Massive Acromioclavicular Joint Ganglion Cyst Geyser Sign Secondary to Massive Rotator Cuff Tear and Cuff Arthropathy.

J Long Term Eff Med Implants 2019 ;29(3):187-190

Trauma and Orthopaedic Department, "Korgialenio-Benakio" Hellenic Red Cross Hospital, Athens, Greece; Trauma and Orthopaedic Department, Ealing Hospital, North West University Healthcare NHS Trust, London, United Kingdom.

A Geyser sign is a rare manifestation of acromioclavicular joint (ACJ) ganglion cysts that are seen in patients with massive rotator cuff tears and arthritis of the ACJ. We present a case report of a 70-yr-old male who was presented to our hospital with a massive AC ganglion cyst measuring 7 × 8 cm with normal shoulder function tests. Imaging studies revealed a massive rotator cuff tear, advanced cuff arthropathy, degeneration of the ACJ, and a Geyser sign (seen with magnetic resonance imaging). Read More

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http://dx.doi.org/10.1615/JLongTermEffMedImplants.2019033022DOI Listing
January 2019

Development and Clinical Evaluation of Web-based Upper-limb Home Rehabilitation System using Smartwatch and Machine-learning model for Chronic Stroke Survivors: Development, Usability, and Comparative Study.

JMIR Mhealth Uhealth 2020 May 14. Epub 2020 May 14.

Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, KR.

Background: Recent advancement of wearable sensor technology has shown feasibility of remote physical therapy at home. Especially, current crisis of pandemic has revealed the need and opportunity of internet-based wearable technology in the future healthcare system. Previous researches have shown the feasibility of human activity recognition technology for monitoring rehabilitation activities at home environments; however, few comprehensive studies ranging from the development to the clinical evaluation exist. Read More

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http://dx.doi.org/10.2196/17216DOI Listing

Filoviruses infect rhesus macaque synoviocytes in vivo and primary human synoviocytes in vitro.

Am J Pathol 2020 May 29. Epub 2020 May 29.

Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD, USA.

The most commonly reported symptom of post-Ebola virus disease syndrome in survivors is arthralgia, yet involvement of the joints in acute or convalescent Ebola virus infection has not been well-characterized in human patients or animal models. By immunohistochemistry, we found that the lining synovial intima of the stifle (knee) is a target for acute infection by Ebola virus/Kikwit, Ebola virus/Makona-C05, and Marburg virus/Angola in the rhesus macaque model. Further, we demonstrate by histology, immunohistochemistry, RNAscope in situ hybridization, and transmission electron microscopy that synoviocytes of the stifle, shoulder, and hip are a target for mouse-adapted Ebola virus/Yambuku-Mayinga infection during acute disease in rhesus macaques. Read More

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http://dx.doi.org/10.1016/j.ajpath.2020.05.013DOI Listing

Biotribological Testing and Analysis of Articular Cartilage Sliding against Metal for Implants.

J Vis Exp 2020 May 14(159). Epub 2020 May 14.

Faculty of Health and Medicine, Department for Health Sciences, Medicine and Research, Center for Regenerative Medicine, Danube University Krems.

Osteochondral defects in middle-aged patients might be treated with focal metallic implants. First developed for defects in the knee joint, implants are now available for the shoulder, hip, ankle and the first metatarsalphalangeal joint. While providing pain reduction and clinical improvement, progressive degenerative changes of the opposing cartilage are observed in many patients. Read More

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http://dx.doi.org/10.3791/61304DOI Listing

infection of shoulder joint after latissimus dorsi tendon transfer: A case report.

SAGE Open Med Case Rep 2020 6;8:2050313X20921326. Epub 2020 May 6.

Orthopedics Section, Department of Medical Science of Basis, Neuroscience and Organs of Sense, Faculty of Medicine and Surgery, University of Study of Bari, General Hospital, Bari, Italy.

Infection rates of arthroscopic procedures have been consistently reported at approximately 1% and are even less common in shoulder arthroscopy (0.3%). We are unaware of any prior reports of infection associated with an arthroscopic-assisted latissimus dorsi transfer and report on a 60-year-old male who experienced this event. Read More

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http://dx.doi.org/10.1177/2050313X20921326DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7234343PMC

Health-related quality of life after paediatric supracondylar humeral fractures.

Bone Joint J 2020 Jun;102-B(6):755-765

Department of Paediatric Orthopaedics and Traumatology, Clinic for Paediatric Surgery, Inselspital Bern University Hospital, University of Bern, Bern, Switzerland.

Aims: We aimed to evaluate the health-related quality of life (HRQoL) in children with supracondylar humeral fractures (SCHFs), who were treated following the recommendations of the Paediatric Comprehensive AO Classification, and to assess if HRQoL was associated with AO fracture classification, or fixation with a lateral external fixator compared with closed reduction and percutaneous pinning (CRPP).

Methods: We were able to follow-up on 775 patients (395 girls, 380 boys) who sustained a SCHF from 2004 to 2017. Patients completed questionnaires including the Quick Disabilities of the Arm, Shoulder and Hand questionnaire (QuickDASH; primary outcome), and the Pediatric Quality of Life Inventory (PedsQL). Read More

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http://dx.doi.org/10.1302/0301-620X.102B6.BJJ-2019-1391.R2DOI Listing

Correlation between patient-reported outcome measures and Single Assessment Numerical Evaluation score in patients treated with a volar locking plate for a distal radial fracture.

Bone Joint J 2020 Jun;102-B(6):744-748

Department of Orthopaedic Surgery, Hanyang University College of Medicine, Seoul, South Korea.

Aims: The aim of this study was to compare patient-reported outcome measures (PROMs) and the Single Assessment Numerical Evaluation (SANE) score in patients treated with a volar locking plate for a distal radial fracture.

Methods: This study was a retrospective review of a prospective database of 155 patients who underwent internal fixation with a volar locking plate for a distal radial fracture between August 2014 and April 2017. Data which were collected included postoperative PROMs (Disabilities of the Arm, Shoulder, and Hand questionnaire (DASH) and Patient-Rated Wrist Evaluation (PRWE)), and SANE scores at one month (n = 153), two months (n = 155), three months (n = 144), six months (n = 128), and one year (n = 73) after operation. Read More

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http://dx.doi.org/10.1302/0301-620X.102B6.BJJ-2019-0859.R2DOI Listing

The Effect of Distal Transfer of the Spinal Accessory Nerve to the Suprascapular Nerve on the Shoulder Reanimation in Spontaneously Partially Recovered Obstetric Brachial Plexus Lesion.

Ann Plast Surg 2020 May 27. Epub 2020 May 27.

From the Department of Orthopedics Surgery and Traumatology, Faculty of Medicine, University of Alexandria, Egypt.

Background: Spontaneous recovery of elbow flexion in obstetric brachial plexus palsy at 4 to 6 months of age is sufficient to exclude the child from the early microsurgical intervention. However, lack of complete active external rotation of shoulder is a common finding in such cases despite ongoing other arm and shoulder functions. Nerve transfer is proposed to manage such cases before the age of 18 months. Read More

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http://dx.doi.org/10.1097/SAP.0000000000002409DOI Listing

Assessment of surgeon variability in preoperative planning of reverse total shoulder arthroplasty: a quantitative comparison of 49 cases planned by 9 surgeons.

J Shoulder Elbow Surg 2020 May 26. Epub 2020 May 26.

Department of Orthopaedics, New York University Langone Medicine Center, New York, NY, USA.

Background: Preoperative planning software is gaining utility in reverse total shoulder arthroplasty (RTSA), particularly when addressing pathologic glenoid wear. The purpose of this study was to quantify inter- and intrasurgeon variability in preoperative planning a series of RTSA cases to identify differences in how surgeons consider optimal implant placement. This may help identify opportunities to establish consensus when correlating plan differences with clinical data. Read More

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http://dx.doi.org/10.1016/j.jse.2020.02.023DOI Listing

Risk factors of impairment of shoulder function after axillary dissection for breast cancer.

Support Care Cancer 2020 May 28. Epub 2020 May 28.

Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ko-160, Minamiumemoto-cho, Matsuyama City, 7910280, Japan.

Objectives: Postoperative shoulder joint dysfunction has been observed at a certain rate after breast cancer surgery with axillary lymph node dissection. The purposes of this study were to verify the feasibility and effects of home-based exercise using a DVD and clarify the target of intensive intervention with physiotherapy by identifying the factors that cause postoperative shoulder dysfunction.

Methods: The study comprised 237 female patients who underwent breast cancer surgery with axillary lymph node dissection, whose data were acquired until 3 months postoperatively. Read More

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http://dx.doi.org/10.1007/s00520-020-05533-7DOI Listing

Identification of working reindeer using palaeopathology and entheseal changes.

Int J Paleopathol 2020 May 25;30:57-67. Epub 2020 May 25.

Biodiversity Unit, University of Oulu, P.O. Box 3000, 90014, University of Oulu, Finland.

Objective: This paper explores the potential of analyzing pathological lesions and entheseal changes in the identification of working reindeer.

Methods: The skeletons of 26 modern working reindeer from Siberia and Northern Finland are analyzed for pathological lesions and entheseal changes.

Results: Working results in elevated frequencies of pathological lesions, specifically joint disease in cervical and thoracic vertebrae, humeri, os coxae and proximal phalanges. Read More

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http://dx.doi.org/10.1016/j.ijpp.2020.02.001DOI Listing

Movement Analysis with Inertial Measurement Unit Sensor After Surgical Treatment for Distal Radius Fractures.

Biores Open Access 2020 21;9(1):151-161. Epub 2020 May 21.

Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Sapienza University, Rome, Italy.

Inertial measurement unit (IMU) has recently been used to evaluate a movement of a body segment to provide accurate information of movement's characteristics. IMU systems have been validated to successfully measure joint angle during upper limb range of motion (ROM). The study aimed to retrospectively evaluate, using an IMU, the ROM recovery of the wrist after surgical treatment for distal-radius fractures with Kirschner wire fixation (KWF) or with volar plate fixation (VPF) and screws. Read More

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http://dx.doi.org/10.1089/biores.2019.0035DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7247043PMC

Comparison of Treatment Outcomes after Collagenase Injection and Percutaneous Needle Fasciotomy for Dupuytren's Contracture: Objective and Subjective Comparisons with a 3-Year Follow-Up.

Authors:
Yoshihiro Abe

Plast Reconstr Surg 2020 Jun;145(6):1464-1474

Ichihara City, Japan From the Department of Orthopedic Surgery, Chiba Rosai Hospital.

Background: This study compared the effectiveness of injectable collagenase clostridium histolyticum and percutaneous needle fasciotomy in the treatment of Dupuytren's contracture.

Methods: Patients with a total passive extension deficit of 30 degrees or more in a single digital ray were enrolled and assigned randomly to receive either collagenase clostridium histolyticum injections or percutaneous needle fasciotomy. Preoperative severity of proximal interphalangeal joint contracture for Dupuytren's disease was classified according to the British Society for Surgery of the Hand as less than 30 degrees (stage I) or 30 degrees or more (stage II). Read More

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http://dx.doi.org/10.1097/PRS.0000000000006828DOI Listing

[Repair of skin and soft tissue defects in shoulder and elbow with rotator scapular artery perforator flap, lateral thoracic perforator flap, or medial brachial artery perforator flap].

Zhonghua Shao Shang Za Zhi 2020 May;36(5):395-398

Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China.

From January 2014 to June 2018, 12 patients with skin and soft tissue defects in shoulder and elbow were admitted to General Hospital of Ningxia Medical University with skin and soft tissue defect size of 6 cm×5 cm to 11 cm×8 cm, including 9 males and 3 females aged 15-56 years. Wounds of 5 patients were repaired with rotator scapular artery perforator flap (flap area of 8 cm×7 cm to 12 cm×6 cm), and the donor flap area was sutured directly. Wounds of 3 patients were repaired with lateral thoracic perforator flap (flap area of 8 cm×7 cm to 13 cm×9 cm). Read More

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http://dx.doi.org/10.3760/cma.j.cn501120-20190117-00010DOI Listing

The Preliminary Exploration of Micro-Friction Stir Welding Process and Material Flow of Copper and Brass Ultra-Thin Sheets.

Materials (Basel) 2020 May 22;13(10). Epub 2020 May 22.

School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China.

In the friction stir welding (FSW) of ultra-thin dissimilar metal sheets, different physical material properties, the reduction of plastic metal in the weld zone, and insufficient plastic metal flow lead to poor weld seam shapes and joint qualities. Therefore, it is necessary to study the flow behavior during the FSW of ultrathin sheets. In this study, micro friction stir welding (μFSW) was conducted and analyzed for the butt welding of 0. Read More

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http://dx.doi.org/10.3390/ma13102401DOI Listing

Using Wearable Inertial Sensors to Estimate Kinematic Parameters and Variability in the Table Tennis Topspin Forehand Stroke.

Appl Bionics Biomech 2020 10;2020:8413948. Epub 2020 May 10.

Division of Biomechanics, Faculty of Physical Education, University School of Physical Education in Wrocław, Wrocław, Poland.

The study examined kinematic parameters and their inter- and intrasubject variability in the topspin forehand of seven top-level table tennis players. A wireless inertial measurement unit (IMU) system measured the movement of the playing hand to analyze the Ready position, Backswing, and Forward events, and a racket-mounted piezoelectric sensor captured the racket-ball Contact. In a four-phase cycle (Backswing, Hitting, Followthrough, and Back to Ready position), body sensors recorded the cycle and phase duration; angles in the sagittal plane at the shoulder, elbow, and wrist of the playing hand and at the knee joints; and acceleration of the playing hand at the moment of racket-ball contact. Read More

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http://dx.doi.org/10.1155/2020/8413948DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7238326PMC

Risk Factors for Fungal Prosthetic Joint Infection.

J Bone Jt Infect 2020 26;5(2):76-81. Epub 2020 Mar 26.

Division of Infectious Diseases, Medical University of South Carolina, Charleston, South Carolina.

: Fungal prosthetic joint infections (PJIs) are rare and often associated with poor outcome; however, risk factors are not well described. : This was a retrospective case control study among all patients with PJIs from 2006-2016 at two major academic centers. Each fungal PJI case was matched 1:1 with a bacterial PJI control by joint (hip, knee, shoulder) and year of diagnosis. Read More

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http://dx.doi.org/10.7150/jbji.40402DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7242408PMC

Volar Locked Plating Versus Closed Reduction and Casting for Acute, Displaced Distal Radial Fractures in the Elderly: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

J Bone Joint Surg Am 2020 May 25. Epub 2020 May 25.

Division of Public Health (A.P.P. and C.Z.), Eccles Health Sciences Library (M.M.M.), Department of Orthopaedics (A.R.T. and N.H.K.), and School of Medicine (A.R.S.), University of Utah, Salt Lake City, Utah.

Background: It remains unclear whether volar locked plating (VLP) yields a better functional outcome than closed reduction and casting (CRC) for elderly patients with an acute, displaced distal radial fracture. Our purpose was to conduct a systematic review and meta-analysis of randomized controlled trials comparing outcomes of VLP and CRC for elderly patients (age, ≥60 years).

Methods: Multiple databases, including MEDLINE, were searched for randomized controlled trials evaluating outcomes following distal radial fracture treatment. Read More

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http://dx.doi.org/10.2106/JBJS.19.01442DOI Listing

Comparison of upper limb kinematics in two activities of daily living with different handling requirements.

Hum Mov Sci 2020 May 21;72:102632. Epub 2020 May 21.

Center for Rehabilitation Research (CIR) (CIR), School of Health of Polytechnic of Porto (ESS-P.Porto), Rua Dr. António Bernardino de Almeida, 400, 4200 - 072 Porto, Portugal; Department of Physiotherapy, School of Health of Polytechnic of Porto (ESS-P.Porto), Rua Dr. António Bernardino de Almeida, 400, 4200 - 072 Porto, Portugal.

Introduction: Recently, kinematic analysis of the drinking task (DRINK) has been recommended to assess the quality of upper limb (UL) movement after stroke, but the accomplishment of this task may become difficult for poststroke patients with hand impairment. Therefore, it is necessary to study ADLs that involve a simpler interaction with a daily life target, such as the turning on a light task (LIGHT). As the knowledge of movement performed by healthy adults becomes essential to assess the quality of movement of poststroke patients, the main goal of this article was to compare the kinematic strategies used by healthy adults in LIGHT with those that are used in DRINK. Read More

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http://dx.doi.org/10.1016/j.humov.2020.102632DOI Listing

Abobotulinumtoxina injections in shoulder muscles for adult upper limb spasticity: Results from a phase 4 real-world study and a phase 3 open-label trial.

J Rehabil Med 2020 May 25. Epub 2020 May 25.

Physical Medicine and Rehabilitation Department, Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Avenue Hippocrate 10, BE-1200 Brussels, Belgium. E-mail:

Objective: To compare patients with upper limb spasticity who did or did not receive abobotulinumtoxinA (Dysport®) in shoulder muscles during 2 international clinical studies.

Design: Phase 4 Upper Limb International Spasticity Study-II (ULIS-II; NCT01020500) endpoints: primary goal selection and achievement. Phase 3 Adult Upper Limb open-label study (NCT01313299) endpoints: Disability Assessment Scale principal target of treatment and mean (standard deviation) change from baseline to week 4 (last cycle involving shoulder muscles) for pain, Modified Frenchay Scale (active function), and Tardieu Scale parameters. Read More

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http://dx.doi.org/10.2340/16501977-2695DOI Listing

Incidence of Cutibacterium acnes from shoulder arthroplasties in Asians: ethnic differences should be considered.

J Shoulder Elbow Surg 2020 May 22. Epub 2020 May 22.

Kyung Hee University Hospital, Seoul, Republic of Korea. Electronic address:

Background: Most studies on Cutibacterium acnes in shoulder surgery have been conducted in the Western population, and studies on Asians are rare. We evaluated the incidence and risk factors of C acnes in shoulder arthroplasty in Asians.

Methods: We retrospectively analyzed 154 patients between January 2017 and May 2019 who underwent shoulder arthroplasty. Read More

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http://dx.doi.org/10.1016/j.jse.2020.02.015DOI Listing

[Italian Arthroplasty Registry: learning curve and optimization of data entry procedures.]

Recenti Prog Med 2020 May;111(5):327-330

Dipartimento MeSVA, Università dell'Aquila.

Arthroplasty registries represent a fundamental tool for the production of evidence in total joint replacement. Italy started in 2005 a national registry (Italian Arthroplasty Registry - RIAP) organised as federation of regional registries under the coordination of the Istituto Superiore di Sanità. However, data collection still appears to be hardened by the additional workload required from clinicians. Read More

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http://dx.doi.org/10.1701/3366.33414DOI Listing

Arthroscopic approaches to and anatomy of the shoulder joint of cattle: a cadaver study.

BMC Vet Res 2020 May 24;16(1):150. Epub 2020 May 24.

Clinic for Ruminants, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Berne, CH-3001, Bern, Switzerland.

Background: Arthroscopic surgery is described as a minimally invasive technique for diagnosis, exploration and treatment of joint disorders. It allows intraarticular structures to be assessed accurately, thereby improving the diagnostic capabilities, and it broadens the spectrum of surgical techniques feasible for treatment of articular pathologies in cattle. This study aimed to assess for cattle the described arthroscopic approaches to the shoulder joint of horses, and to describe the appearance of the corresponding intraarticular structures of the shoulder joint. Read More

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http://dx.doi.org/10.1186/s12917-020-02337-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7245894PMC

Increased Vascularity in the Neonatal versus Adult Meniscus: Evaluation with Magnetic Resonance Imaging.

Cartilage 2020 May 23:1947603520923143. Epub 2020 May 23.

Miami Orthopedics and Sports Medicine Institute, Baptist Health South Florida, Miami, FL, USA.

. Quantification of meniscus vascularity has been limited with previous techniques, and minimal data exist describing differential vascular zones in the skeletally immature meniscus. The objective of this study is to use quantitative contrast-enhanced magnetic resonance imaging (MRI) to compare meniscal vascularity in neonatal specimens with adults. Read More

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http://dx.doi.org/10.1177/1947603520923143DOI Listing

Imaging of shoulder instability.

Skeletal Radiol 2020 May 23. Epub 2020 May 23.

Shoulder Unit, Humanitas Researche Hospital, Via Manzoni 56 Rozzano, Milan, Italy.

The shoulder enjoys the widest range of motion of all the joints in the human body, therefore requires a delicate balance between stability and motility. The glenohumeral joint is inclined to fall into two main instability categories: macro and micro. Macroinstability can be traumatic or atraumatic, with anterior or posterior dislocation of the humeral head. Read More

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http://dx.doi.org/10.1007/s00256-020-03459-zDOI Listing

Shoulder and elbow education during COVID19-perspectives from the resident, fellow, and attending level.

J Shoulder Elbow Surg 2020 Apr 29. Epub 2020 Apr 29.

Director, Joint Preservation Center, Assistant Professor, Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, CO, USA. Electronic address:

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http://dx.doi.org/10.1016/j.jse.2020.04.017DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7188618PMC

Comparison of the Effects of Vapocoolant Spray and Topical Anesthetic Cream on Pain during Intraarticular Injection of the Shoulder: a Randomized Double-Blind Controlled Trial.

Arch Phys Med Rehabil 2020 May 20. Epub 2020 May 20.

Department of Physical Medicine and Rehabilitation, College of Medicine, Soonchunhyang University Hospital, Bucheon.

Objective: This study was performed to compare the effects of a vapocoolant spray and an eutectic mixture of local anesthetics (EMLA) cream on reducing pain during intraarticular (IA) injection of the shoulder.

Design: Double-blind randomized placebo-controlled clinical trial.

Setting: University hospital. Read More

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http://dx.doi.org/10.1016/j.apmr.2020.04.021DOI Listing