36,043 results match your criteria shoulder joint


Glenohumeral joint reconstruction using statistical shape modeling.

Biomech Model Mechanobiol 2021 Nov 27. Epub 2021 Nov 27.

Department of Biomedical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia.

Evaluation of the bony anatomy of the glenohumeral joint is frequently required for surgical planning and subject-specific computational modeling and simulation. The three-dimensional geometry of bones is traditionally obtained by segmenting medical image datasets, but this can be time-consuming and may not be practical in the clinical setting. The aims of this study were twofold. Read More

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November 2021

The reserve of joint torque determines movement coordination.

Sci Rep 2021 Nov 26;11(1):23008. Epub 2021 Nov 26.

EuroMov Digital Health in Motion, Univ Montpellier, IMT Mines Alès, CHU Nîmes, Le Grau du Roi, France.

Humans coordinate biomechanical degrees of freedom to perform tasks at minimum cost. When reaching a target from a seated position, the trunk-arm-forearm coordination moves the hand to the well-defined spatial goal, while typically minimising hand jerk and trunk motion. However, due to fatigue or stroke, people visibly move the trunk more, and it is unclear what cost can account for this. Read More

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November 2021

Digital analysis of external fixation area of proximal humerus fractures in elderly patients.

BMC Musculoskelet Disord 2021 Nov 26;22(1):991. Epub 2021 Nov 26.

Cangzhou Hospital of integrated traditional Chinese medicine and Western medicine, No.31, West Huanghe Road, Yunhe District, Cangzhou, 061000, Hebei Province, China.

Introduction: The purpose is based on anatomical basis, combined with three-dimensional measurement, to guide the clinical repositioning of proximal humeral fractures, select the appropriate pin entry point and angle, and simulate surgery.

Methods: 11 fresh cadaveric specimens were collected, the distance of the marked points around the shoulder joint was measured anatomically, and the vertical distance between the inferior border of the acromion and the superior border of the axillary nerve, the vertical distance between the apex of the humeral head and the superior border of the axillary nerve, the vertical distance between the inferior border of the acromion and the superior border of the anterior rotator humeral artery, and the vertical distance between the apex of the humeral head and the superior border of the anterior rotator humeral artery were marked on the 3D model based on the anatomical data to find the relative safety zone for pin placement.

Results: Contralateral data can be used to guide the repositioning and fixation of that side of the proximal humerus fracture, and uniform data cannot be used between male and female patients. Read More

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November 2021

Use of a Portable Inertial Measurement Unit as an Evaluation Method for Supraspinatus Muscle: Proposed Normative Values.

Sensors (Basel) 2021 Nov 20;21(22). Epub 2021 Nov 20.

Department of Nursing, Physical Therapy and Medicine, University of Almería, La Cañada de San Urbano, 04120 Almería, Spain.

Treatment protocols do not specify an appropriate weight for rehabilitating the shoulder joint. The purpose of this study was to establish normative values for the shoulder abduction range of motion and recommended weights to be used in the rehabilitation process after injury to the supraspinatus muscle. Fifty-eight volunteers were assessed using the DyCare system. Read More

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November 2021

Micromachined Tactile Sensor Array for RTSA.

Micromachines (Basel) 2021 Nov 21;12(11). Epub 2021 Nov 21.

Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65201, USA.

This work presents a polymer-based tactile capacitive sensor capable of measuring joint reaction forces of reverse total shoulder arthroplasty (RTSA). The capacitive sensor contains a polydimethylsiloxane (PDMS) dielectric layer with an array of electrodes. The sensor was designed in such a way that four components of glenohumeral contact forces can be quantified to help ensure proper soft tissue tensioning during the procedure. Read More

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November 2021

Hydrodynamic Characteristics of Different Undulatory Underwater Swimming Positions Based on Multi-Body Motion Numerical Simulation Method.

Int J Environ Res Public Health 2021 Nov 22;18(22). Epub 2021 Nov 22.

Institute of Physical Education, Hunan University, Changsha 410082, China.

The study of hydrodynamic characteristics of swimming is the main way to optimize the swimming movement. The relationship between position, water depth, and swimming performance of undulatory underwater swimming are one of the main concerns of scholars. Therefore, the aim of this study is to analyze the swimming performance of three different undulatory underwater swimming positions under various swimming depths using a numerical simulation method based on multi-body motion. Read More

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November 2021

Lateralization in Reverse Shoulder Arthroplasty.

J Clin Med 2021 Nov 18;10(22). Epub 2021 Nov 18.

Royal Perth Hospital, Perth 6000, Australia.

Indications for Reverse Shoulder Arthroplasty (RSA) have been extended over the last 25 years, and RSA has become the most frequently implanted shoulder arthroplasty worldwide. The initial Grammont design with medialization of the joint center of rotation (JCOR), placement of the JCOR at the bone-implant interface, distalization and semi-constrained configuration has been associated with drawbacks such as reduced rotation and range of motion (ROM), notching, instability and loss of shoulder contour. This review summarizes new strategies to overcome these drawbacks and analyzes the use of glenoid-sided, humeral-sided or global bipolar lateralization, which are applied differently by surgeons and current implant manufacturers. Read More

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November 2021

Complications of Reverse Total Shoulder Arthroplasty: A Computational Modelling Perspective.

J Clin Med 2021 Nov 16;10(22). Epub 2021 Nov 16.

Department of Biomedical Engineering, University of Melbourne, Parkville, VIC 3010, Australia.

Reverse total shoulder arthroplasty (RTSA) is an established treatment for elderly patients with irreparable rotator cuff tears, complex proximal humerus fractures, and revision arthroplasty; however, with the increasing indications for RTSA over the last decade and younger implant recipients, post-operative complications have become more frequent, which has driven advances in computational modeling and simulation of reverse shoulder biomechanics. The objective of this study was to provide a review of previously published studies that employed computational modeling to investigate complications associated with RTSA. Models and applications were reviewed and categorized into four possible complications that included scapular notching, component loosening, glenohumeral joint instability, and acromial and scapular spine fracture, all of which remain a common cause of significant functional impairment and revision surgery. Read More

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November 2021

Shoulder impingement caused by distal clavicle osteochondroma.

Ann Med Surg (Lond) 2021 Dec 3;72:103003. Epub 2021 Nov 3.

Department of Surgery, Unaizah College of Medicine and Medical Science, Qassim University, Saudi Arabia.

Introduction: One of the most common causes of shoulder pain is impingement syndrome, several structural changes of acromion, coracoid process, coracohumeral ligament and acroimclavicular joint could cause it; however a rare extrinsic benign tumor such as osteochondromas could also lead to shoulder impingement which could be treated successfully by arthroscopy.

Case Report: We presented a successful arthroscopic resection of distal clavicle osteochondroma causing shoulder impingement in a 56-year-old male patient which was not responding to conservative management.

Conclusion: Shoulder impingement could be caused by a very rare pathology such as osteochondromas. Read More

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December 2021

The role of VFG in wrist arthrodesis: Long term results in a series of 11 patients and literature review.

Injury 2021 Nov 18. Epub 2021 Nov 18.

Department of Plastic and Reconstructive Microsurgery, Careggi Universital Hospital, Via Taddeo Alderotti, 56, Florence 50139, Italy. Electronic address:

Background: Total wrist fusion (TWF) is indicated for longstanding degenerative, posttraumatic and/or post-oncological conditions to provide pain relief and wrist stability at partial expense of wrist motion.

Patients And Methods: A total of 11 consecutive patients who had completed TWF with Vascularized Fibula Graft (VFG) for massive distal radius defects were identified retrospectively from our center using inpatient records. We evaluated bone fusion times and long term functional outcomes following the procedure. Read More

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November 2021

Individualized 3D printing-assisted repair and reconstruction of neoplastic bone defects at irregular bone sites: exploration and practice in the treatment of scapular aneurysmal bone cysts.

BMC Musculoskelet Disord 2021 Nov 25;22(1):984. Epub 2021 Nov 25.

Department of Bone and Soft Tissue Oncology, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang street, Dalian, 116001, Liaoning Province, China.

Background: The irregular anatomical shape and complex structures of irregular bones make it more difficult to repair and reconstruct bone defects in irregular bones than in the long bones of the extremities. Three-dimensional (3D) printing technology can help to overcome the technical limitations of irregular bone repair by generating simulations that enable structural integration of the lesion area and bone structure of the donor site in all directions and at multiple angles. Thus, personalized and accurate treatment plans for restoring anatomical structure, muscle attachment points, and maximal function can be made. Read More

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November 2021

Impacts of Mobility Dogs on Kinematics during Ambulation: A Quantitative Study.

Vet Sci 2021 Oct 26;8(11). Epub 2021 Oct 26.

Dogwood Therapy Services, Albuquerque, NM 87120, USA.

While prior research has explored various physiological consequences associated with assistive device use for ambulation, limited research has specifically explored the impact of mobility dog partnership on human kinematics. This descriptive study examined the impact of mobility dog partnership on kinematics of individuals in the normal young adult population. Sixteen participants were video recorded while walking in a straight line for 3. Read More

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October 2021

Low Risk of Fracture With End-Range Movements of the Hip in People With Low Bone Mineral Density: A Narrative Review.

Gerontol Geriatr Med 2021 Jan-Dec;7:23337214211052398. Epub 2021 Nov 19.

Division of Anatomy, University of Toronto, Toronto, ON, Canada.

The risks of end-range movements for people with osteoporosis, specifically at the hips and shoulder, are not well understood. To synthesize literature on the safety of stretching for people with osteoporosis by searching: 1) biomechanical literature to determine how much force results from an end-range maneuverer and is required to fracture joint components (focusing on the hip joint) and 2) clinical literature to describe techniques used, populations studied, effects, and reported adverse events. We conducted two separate search strategies in PubMed, EMBASE, and Scopus (1955-2020). Read More

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November 2021

In adults, early mobilization may be beneficial for distal radius fractures treated with open reduction and internal fixation: a systematic review and meta-analysis.

J Orthop Surg Res 2021 Nov 24;16(1):691. Epub 2021 Nov 24.

Department of Orthopaedic Surgery, Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China.

Objectives: It remains debatable if early mobilization (EM) yields a better clinical outcome than the late mobilization (LM) in adults with an acute and displaced distal radial fracture (DRF) of open reduction internal fixation (ORIF). Therefore, we aimed to perform a systematic review and meta-analysis of randomized controlled trials (RCTs), comparing clinical results with the safety of EM with LM following ORIF.

Methods: Databases such as Medline, Cochrane Central Register, and Embase were searched from Jan 1, 2000, to July 31, 2021, and RCTs comparing EM with LM for DRF with ORIF were included in the analysis. Read More

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November 2021

Extra-articular resection of the hip joint for pelvic sarcomas: Are there any oncological and functional risks compared with intra-articular resection?

J Bone Oncol 2021 Dec 1;31:100401. Epub 2021 Nov 1.

Oncology Service, The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, United Kingdom.

Background: While extra-articular resection (EAR) of the knee and shoulder joint is associated with poorer clinical outcomes, the oncological and functional risks of EAR of the hip joint are unknown. We aimed to compare these risks between EAR of the hip joint and intra-articular resection (IAR).

Methods: We conducted a comparative study of 75 patients who underwent tumour resection and limb-salvage reconstruction for bone sarcomas of the -acetabulum between 1996 and 2016. Read More

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December 2021

[Re discussion on arthroscopic repair of rotator cuff tear in aged patients].

Zhongguo Gu Shang 2021 Jul;34(11):1040-3

Department of Orthopaedics, Ningbo First Hospital, Ningbo Hospital of Zhejiang University, Ningbo 315010, Zhejiang, China.

Objective: To investigate the method and clinical effects of modified anchor insertion with single-row suture arthroscopic rotator cuff repair for aged patients with rotator cuff tear.

Methods: From March 2016 to February 2020, 96 aged patients with rotator cuff tears were retrospectively analyzed, including 29 males and 67 females, aged from 65 to 85 years, with a mean of (68.8±3. Read More

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The combination of Raman Spectroscopy and Mass Spectrometry to investigate cutaneous metallosis.

Br J Dermatol 2021 Nov 22. Epub 2021 Nov 22.

Department of Dermatology, Middlemore Hospital, Auckland, New Zealand.

Skin is uniquely accessible to investigation by modern scientific methods. Raman spectroscopy is a non-invasive technology for in-vivo analysis of molecular composition. Furthermore, a skin biopsy examined with Laser ablation - Inductively Coupled Plasma - Mass Spectrometry (LA-ICP-MS) provides high resolution multi-element mapping with high sensitivity and precision for exogenous metals in biological tissue which have no intrinsic abundance. Read More

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November 2021

Polymyalgia Rheumatica in a Patient with Pseudogout and Dementia.

Am J Case Rep 2021 Nov 23;22:e933926. Epub 2021 Nov 23.

Department of General Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.

BACKGROUND The differential diagnosis of generalized pain includes reactivity associated with bacterial and viral infections, autoimmune rheumatic disease, and orthopedic diseases. Obtaining a detailed medical history and establishing an accurate diagnosis are difficult in elderly patients with dementia. In addition, the differential diagnosis between polymyalgia rheumatica and pseudogout is often difficult. Read More

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November 2021

Efficacy of intra-articular ketorolac for pain control in arthroscopic surgeries: a systematic review and meta-analysis.

J Orthop Surg Res 2021 Nov 22;16(1):688. Epub 2021 Nov 22.

Department of Pharmacy, Hangzhou Third People's Hospital, 38 Xihu Ave, Shangcheng District, Hangzhou, 310009, Zhejiang Province, China.

Background: The current systematic review and meta-analysis aimed to synthesize evidence on the efficacy of intra-articular ketorolac for patients undergoing arthroscopic surgeries.

Methods: PubMed, Embase, ScienceDirect, and Google Scholar databases were searched for randomized controlled trials assessing the analgesic effect of intra-articular ketorolac for arthroscopic surgery of hip/knee or shoulder joint.

Results: Six studies were included. Read More

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November 2021

Os acromiale may be a contraindication of the clavicle hook plate: case reports and literature review.

BMC Musculoskelet Disord 2021 Nov 22;22(1):969. Epub 2021 Nov 22.

Department of Orthopedics, Shanghai First People's Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China.

Background: Os acromiale can be potentially missed or misdiagnosed as acromion fracture, and this can affect treatment determination if it is complicated with an ipsilateral shoulder injury. The clavicle hook plate is a widely used technique for distal clavicle injuries, leading to transacromial erosion, particularly when in the presence of os acromiale.

Case Presentation: A 70-year-old man and a 78-year-old man who had limited mobility and severe pain in their right shoulders following falls attended the emergency center. Read More

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November 2021

Results of treatment of osteoarthritis of the scaphotrapeziotrapezoidal joint with tendon allograft interposition.

Acta Orthop Belg 2021 Sep;87(3):533-539

The aim of the study was to determine if the use of tendon allografts in combination with distal scaphoid resection for the treatment of isolated STT arthrosis is a save procedure. We reviewed the postoperative complications, re-operations, clinical and radiological results of this treatment modality. A retrospective cohort study was conducted. Read More

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September 2021

A novel treatment for prevention of post-traumatic elbow stiffness using onaBotulinum toxin type A: a prospective placebo controlled randomized trial.

Acta Orthop Belg 2021 Sep;87(3):509-520

Approximately 30% of all upper extremity fractures are elbow fractures which may result elbow stiffness. This study aimed to investigate the efficacy of onaBotulinum Toxin type A injection to prevent post-traumatic pain and elbow-stiffness. All patients were included who presented to a single surgeon with supracondylar/ intraarticular distal humerus fractures, proximal ulna and radius fractures. Read More

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September 2021

Long Head of Biceps Transfer to Augment Bankart Repair on Chronic Anterior Shoulder Instability with and Without Subcritical Bone Loss: A Biomechanical Study.

J Shoulder Elbow Surg 2021 Nov 19. Epub 2021 Nov 19.

Department of Orthopaedic Surgery, MedStar Union Memorial Hospital, Baltimore, MD, USA. Electronic address:

Background: Treating recurrent anterior shoulder instability in collision sports, capsule-labrum defects, and bipolar bone loss remains challenging. The study purpose was to investigate the effect of long head of biceps transfer (LHBT) on load-to-dislocation biomechanics in a repetitive serial shoulder dislocation cadaveric model comparing LHBT to the Latarjet and Bankart procedures, first-line treatment for chronic traumatic anterior shoulder instability with and without anterior glenoid bone loss, respectively.

Methods: This controlled laboratory study dislocated eight fresh-frozen cadaveric shoulders with different conditions in sequence using a custom test frame. Read More

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November 2021

Biomechanical analysis of the right elevated glenohumeral joint in violinists during legato-playing.

Technol Health Care 2021 Nov 12. Epub 2021 Nov 12.

Laboratory for Biomechanics, Ostbayerische Technische Hochschule (OTH) Regensburg, Regensburg, Germany.

Background: Many statistics reveal that violin players suffer most often from musculoskeletal disorders compared to musicians of other instrument groups. A common phenomenon, especially observed in violin beginners, is the tendency to elevate the right shoulder during playing the violin. This can probably lead to serious disorders in long-term practice with repetitive movements. Read More

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November 2021

Optical Coherence Tomography-Derived Changes in Plaque Structural Stress Over the Cardiac Cycle: A New Method for Plaque Biomechanical Assessment.

Front Cardiovasc Med 2021 4;8:715995. Epub 2021 Nov 4.

School of Biomedical Engineering, Biomedical Instrument Institute, Shanghai Jiao Tong University, Shanghai, China.

Cyclic plaque structural stress has been hypothesized as a mechanism for plaque fatigue and eventually plaque rupture. A novel approach to derive cyclic plaque stress from optical coherence tomography (OCT) is hereby developed. All intermediate lesions from a previous OCT study were enrolled. Read More

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November 2021

Biomechanics of axial load transmission across the native human elbow.

Shoulder Elbow 2021 Oct 9;13(6):671-676. Epub 2020 Oct 9.

Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA.

Background: Elbow and forearm motion are thought to affect elbow load transmission, yet little empirical evidence exists to quantify the biomechanics.

Methods: Eight fresh-frozen human cadaver upper extremities were utilized. A 100 N axial force was applied across the elbow joint at elbow flexion angles of (0°, 30°, 60°, and 90°) and forearm rotation angles (0°, 45° supination, and 45° pronation). Read More

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October 2021

Joint replacement surgery for elbow tumours: a systematic review of outcomes.

Shoulder Elbow 2021 Oct 20;13(6):656-670. Epub 2021 May 20.

Department is Hand and Upper Limb Unit, Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, UK.

Background: Tumour resection followed by joint reconstruction is a surgical option in the appropriate patient. The evidence for such reconstructive surgery of the elbow joint is limited. The aim of this study is to review the literature to evaluate the outcomes of joint replacement surgery in tumours of the elbow. Read More

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October 2021

Shoulder hydrodilatation for primary, post-traumatic and post-operative adhesive capsulitis.

Shoulder Elbow 2021 Oct 9;13(6):649-655. Epub 2020 Dec 9.

Orthopaedic Department, Upper Limb Unit, Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan, UK.

Background: Adhesive capsulitis (frozen shoulder) is characterised by pain and loss of range of motion of the glenohumeral joint. It can be present as primary (idiopathic) or secondary to surgery, trauma or other conditions that restrict the use of the shoulder joint. Various treatment options have been adopted including physiotherapy, manipulation under anaesthetic, hydrodilatation and arthroscopic or open capsular release but the optimal form of management remains uncertain. Read More

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October 2021

Clinical and radiographic outcomes of total shoulder arthroplasty with a partially cemented all-polyethylene pegged bone-ingrowth glenoid component: a systematic review.

Shoulder Elbow 2021 Oct 27;13(6):627-641. Epub 2020 Jul 27.

3rd Orthopaedic Department, Hygeia Hospital, Athens, Greece.

Background: Several articles have been published reporting on the clinical performance of a novel pegged, all-polyethylene glenoid component design which features a central peg, circumferentially fluted, interference-fit peg for tissue integration and three small peripheral pegs for cementing. However, no systematic review exists to this date.

Methods: The US National Library of Medicine (PubMed/MEDLINE), EMBASE, and the Cochrane Database of Systematic Reviews were queried for publications up to May 2020. Read More

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October 2021

The risk of early infection following intra-articular corticosteroid injection following shoulder arthroplasty.

Shoulder Elbow 2021 Oct 21;13(6):605-609. Epub 2020 May 21.

Department of Orthopaedic Surgery, University of Virginia Health System, Charlottesville, USA.

Background: There is little literature examining the association of corticosteroid injections into shoulders with a pre-existing arthroplasty. The aim of the current study was to determine the risk of early infection following intra-articular corticosteroid injection into a pre-existing shoulder arthroplasty.

Methods: The PearlDiver database was retrospectively reviewed to identify patients with a pre-existing shoulder arthroplasty from 2007 to 2017. Read More

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October 2021