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https://www.readbyqxmd.com/read/28420897/in-vivo-analysis-of-three-dimensional-dynamic-scapular-dyskinesis-in-scapular-or-clavicular-fractures
#1
Eugene Kim, Jai Hyung Park, Byeong-Ryong Han, Hee Jin Park, So Yeon Lee, Tsuyoshi Murase, Kazumi Sugamoto, Sumika Ikemoto, Se-Jin Park
The three-dimensional (3D) kinematics of the scapula were analyzed in vivo in 10 patients with scapular and 10 patients with clavicular fracture. Both the injured shoulder and normal contralateral shoulder were evaluated by computed tomography in the neutral and fully elevated positions. 3D rotational and translational movements of the scapula relative to the thorax during arm elevation were analyzed. A computer simulation program was used to compare rotational elevation/depression in the coronal plane, anterior/posterior tilting in the sagittal plane and protraction/retraction in the axial plane between the normal and affected sides...
April 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/28412107/glenoid-morphology-in-obstetrical-brachial-plexus-lesion-a-three-dimensional-computed-tomography-study
#2
Lars H Frich, Pernille H Schmidt, Trine Torfing
BACKGROUND: Obstetric brachial plexus lesion (OBPL) frequently leads to glenohumeral dysplasia, and excessive retroversion of the glenoid is among the best known developmental disturbances. Most analyses of the glenoid are based on 2-dimensional (D) imaging and do not address glenoid inclination or provide information on the glenoid in the sagittal plane. We aim to describe the 3-D deformity of the glenoid in children with OBPL. METHODS: Preoperative computed tomography (CT) scans of the nonaffected and the affected scapula of 24 children (aged 5 to 12 years) with developmental disturbances after OBPL years were analyzed...
April 12, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28406877/scapulothoracic-dissociation-evaluation-and-management
#3
Andrew M Choo, Patrick C Schottel, Andrew R Burgess
Scapulothoracic dissociation is a rare, potentially limb- and life-threatening injury of the shoulder girdle. The injury is characterized by lateral displacement of the scapula resulting from traumatic disruption of the scapulothoracic articulation. The typical physical examination findings consist of substantial swelling of the shoulder girdle, along with weakness, numbness, and pulselessness in the ipsilateral upper extremity. Radiographic evaluation includes measurement of the scapular index on a nonrotated chest radiograph and assessment for either a distracted clavicle fracture or a disrupted acromioclavicular or sternoclavicular joint...
May 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28383999/energy-attenuation-performance-of-impact-protection-worn-by-motorcyclists-in-real-world-crashes
#4
Bianca Albanese, Tom Gibson, Tom Whyte, Lauren Meredith, Giovanni Savino, Liz De Rome, Matthew Baldock, Michael Fitzharris, Julie Brown
Objective Laboratory studies have demonstrated that impact protectors (IP) used in motorcycle clothing can reduce fracture severities. While crash studies have reported IP are associated with reduced likelihood of soft tissue injury, there is little evidence of their effectiveness in reducing fracture likelihood. This discrepancy might be related to IP quality. There are mandatory requirements for IP supplied with protective clothing in Europe, but not elsewhere. This study examines the energy attenuation performance of IP used by Australian riders...
April 6, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28348908/recurrent-intrathoracic-locking-of-the-scapula-after-lung-cancer-resection-and-combined-rib-resection
#5
Akinori Kimura, Hideyuki Sasanuma, Takashi Ajiki, Hitoshi Sekiya, Katsushi Takeshita
We report a case of recurrent locking of the scapula in the thorax after combined lobectomy and thoracic wall resection for advanced lung cancer. The patient was a 52-year-old man with advanced spindle cell carcinoma in his right lung. He had undergone right lung lobectomy and thoracic wall excision (Th1-5). Intrathoracic repair had not been performed to address the defect in the thoracic wall. Two months after the operation he experienced sudden acute pain in the right shoulder. Three-dimensional computed tomography revealed locking of the scapula intrathoracically...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28347934/kinematic-analysis-of-the-shoulder-complex-after-anatomic-and-reverse-total-shoulder-arthroplasty-a-cross-sectional-study
#6
Alexandra Roren, Christelle Nguyen, Clémence Palazzo, Fouad Fayad, Michel Revel, Thomas Gregory, Serge Poiraudeau, Agnès Roby-Brami, Marie-Martine Lefèvre-Colau
BACKGROUND: The movement of the arm relative to the trunk results from coordinated 3D glenohumeral and scapulothoracic movements. Changes in scapula kinematics may occur after total shoulder arthroplasty and could affect clinical and functional outcomes. OBJECTIVES: To assess the 3D movement of the scapula during arm elevation after anatomic and reverse total shoulder arthroplasty. DESIGN/METHODS: This was a single-centre, non-randomized, controlled cross-sectional study...
March 20, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28331927/bilateral-shoulder-arthrodesis-in-a-pekinese-using-three-dimensional-printed-patient-specific-osteotomy-and-reduction-guides
#7
Bill Oxley
OBJECTIVE: To report the use of computer-aided design software for virtual surgical planning and design of three-dimensional printed patient-specific osteotomy and reduction guides for facilitation of bilateral shoulder arthrodesis in a dog. METHODS: A three-year-old male entire Pekinese was presented unable to walk due to bilateral severe medial shoulder instability. Computed tomographic data was processed to yield three-dimensional mesh representations of the humeri and scapulae which could be manipulated in computer-aided design software...
March 23, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28298060/a-cadaveric-model-evaluating-the-influence-of-bony-anatomy-and-the-effectiveness-of-partial-scapulectomy-on-decompression-of-the-scapulothoracic-space-in-snapping-scapula-syndrome
#8
Dimitri S Tahal, J Christoph Katthagen, Daniel Cole Marchetti, Jacob D Mikula, Scott R Montgomery, Alex Brady, Grant J Dornan, Peter J Millett
BACKGROUND: Snapping scapula syndrome (SSS) is caused by bony and/or soft tissue impingement in the scapulothoracic articulation. Surgical resection of the superomedial angle (SMA) plus bursectomy can provide relief in most cases; however, the amount needed to achieve adequate scapulothoracic space decompression (SSD) is unknown. PURPOSE: The aim of this study was to evaluate the effectiveness of partial scapulectomy and the influence of bony anatomy on SSD. It was hypothesized that the anterior offset and costomedial angle would correlate with the amount of bony resection needed to achieve adequate SSD...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28279851/the-sensitivity-of-shoulder-muscle-and-joint-force-predictions-to-changes-in-joint-kinematics-a-monte-carlo-analysis
#9
Wen Wu, Peter Vee Sin Lee, David C Ackland
Kinematics of the shoulder girdle obtained from non-invasive measurement systems such as video motion analysis, accelerometers and magnetic tracking sensors has been shown to be adversely affected by instrumentation measurement errors and skin motion artefact. The degree to which musculoskeletal model calculations of shoulder muscle and joint loading are influenced by variations in joint kinematics is currently not well understood. A three-dimensional musculoskeletal model of the upper limb was used to evaluate the sensitivity of shoulder muscle and joint force...
March 1, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28275882/management-of-chronic-unstable-acromioclavicular-joint-injuries
#10
REVIEW
Luis Natera Cisneros, Juan Sarasquete Reiriz
The acromioclavicular joint represents the link between the clavicle and the scapula, which is responsible for the synchronized dynamic of the shoulder girdle. Chronic acromioclavicular joint instability involves changes in the orientation of the scapula, which provokes cinematic alterations that might result in chronic pain. Several surgical strategies for the management of patients with chronic and symptomatic acromioclavicular joint instability have been described. The range of possibilities includes anatomical and non-anatomical techniques, open and arthroscopy-assisted procedures, and biological and synthetic grafts...
March 8, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28273959/morphometric-evaluation-of-adult-acromion-process-in-north-indian-population
#11
Susmita Saha, Neelam Vasudeva
INTRODUCTION: Dimensions of acromion process are important to show linkage to the shoulder girdle pathologies. Also morphometric analysis of acromion process would be helpful for surgeons while performing surgical procedures on the shoulder joint. AIM: The purpose of this present study was to observe the detailed morphometric evaluation of adult acromion processes in North Indian population because different morphometric dimensions play an important role in various disorders of the shoulder, particularly sub acromial impingement syndrome...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28269632/in-vitro-identification-of-shoulder-joint-and-muscle-dynamics-based-on-motion-capture-and-musculoskeletal-computation
#12
Akihiko Murai, Yusuke Kawano, Ko Ayusawa, Mitsunori Tada, Noboru Matsumura, Takeo Nagura
Dynamics properties of shoulder joint and muscle are experimentally identified under different musculoskeletal conditions for a digital human model with accurate dynamics. Passive swing motions of scapula and upper limb bones in cadaveric specimen with and without muscles are measured by an optical motion capture system. External forces that are applied to the scapula bone are simultaneously measured by a force plate. The dynamics identification process consists of 3 steps: 1) identify the inertial parameters of the cadaveric specimen with and without muscles respectively, 2) identify the viscosity of the glenohumeral joint from the specimen without muscles, and 3) identify the viscosity of the shoulder muscles from the specimen with muscles and the identified joint viscosity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28238965/preoperative-planning-for-accurate-glenoid-component-positioning-in-reverse-shoulder-arthroplasty
#13
J Berhouet, L V Gulotta, D M Dines, E Craig, R F Warren, D Choi, X Chen, A Kontaxis
BACKGROUND: Glenoid component positioning in reverse shoulder arthroplasty (RSA) is challenging. Patient-specific instrumentation (PSI) has been advocated to improve accuracy, and is based on precise preoperative planning. The purpose of this study was to determine the accuracy of glenoid component positioning when only the glenoid surface is visible, compared to when the entire scapula is visible on a 3D virtual model. METHODS: CT scans of 30 arthritic shoulders were reconstructed in 3D models...
May 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28238054/os-acromiale-frequency-and-a-review-of-726-shoulder-mri
#14
C Rovesta, M C Marongiu, A Corradini, P Torricelli, G Ligabue
Os acromiale consist in a lack of fusion between the different ossification spots of the acromial side of scapula from the age of 23-25 years. A relation between os acromiale and some shoulder pathology like impingement syndrome, cuff tear and subacromial bursitis has been described. The etiology is not already known. The aim of this study was to evaluate the frequency of os acromiale in our population, the link between os acromiale and sex, side and shoulder pathology. 1042 shoulder MRI were evaluated to find out os acromiale and the linked cuff pathology...
February 25, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28237770/the-reliability-of-physical-examination-tests-for-the-clinical-assessment-of-scapular-dyskinesis-in-subjects-with-shoulder-complaints-a-systematic-review
#15
REVIEW
Toni Lange, Filip Struyf, Jochen Schmitt, Jörg Lützner, Christian Kopkow
STUDY DESIGN: Systematic review. OBJECTIVES: The aim of this systematic review was to summarize and evaluate intra- and interrater reliability research of physical examination tests used for the assessment of scapular dyskinesis. BACKGROUND: Scapular dyskinesis, defined as alteration of normal scapular kinematics, is described as a non-specific response to different shoulder pathologies. METHODS: A systematic literature search was conducted in MEDLINE, EMBASE, AMED and PEDro until March 20th, 2015...
November 3, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28236712/a-biomechanical-evaluation-of-the-combined-elevation-test
#16
Sam Allen, Gemma Phillips, Steve McCaig
OBJECTIVES: To evaluate biomechanically the relationships between the outcome of the Combined Elevation Test, its component joint motions, and thoracic spine angles. DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: 18 elite swimmers and triathletes (11 males and 7 females). MAIN OUTCOME MEASURES: Combined Elevation Test outcome in forehead and chin positions. Individual joint contributions to test outcome...
November 12, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28227890/in-vitro-identification-of-shoulder-joint-and-muscle-dynamics-based-on-motion-capture-and-musculoskeletal-computation
#17
Akihiko Murai, Yusuke Kawano, Ko Ayusawa, Mitsunori Tada, Noboru Matsumura, Takeo Nagura, Akihiko Murai, Yusuke Kawano, Ko Ayusawa, Mitsunori Tada, Noboru Matsumura, Takeo Nagura
Dynamics properties of shoulder joint and muscle are experimentally identified under different musculoskeletal conditions for a digital human model with accurate dynamics. Passive swing motions of scapula and upper limb bones in cadaveric specimen with and without muscles are measured by an optical motion capture system. External forces that are applied to the scapula bone are simultaneously measured by a force plate. The dynamics identification process consists of 3 steps: 1) identify the inertial parameters of the cadaveric specimen with and without muscles respectively, 2) identify the viscosity of the glenohumeral joint from the specimen without muscles, and 3) identify the viscosity of the shoulder muscles from the specimen with muscles and the identified joint viscosity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217661/winged-scapula-caused-by-rhomboid-paralysis-a-case-report
#18
Maria Grazia Benedetti, Alessandro Zati, Silvia Bonfiglioli Stagni, Isabella Fusaro, Roberta Monesi, Roberto Rotini
Scapular winging secondary to dorsal scapular nerve (DSN) damage is an underestimated condition. It is often caused by entrapment of the nerve due to a hypertrophic middle scalene muscle, or by stretching of the DSN during traumatic movements. The condition has also been attributed to myofascial pain syndrome of the rhomboids with entrapment of the DSN. The non-specific symptomatology reported by patients is often incorrectly diagnosed, and this can result in a high level of disability of the upper limb. A clinical case of misdiagnosed dorsal scapula entrapment is presented...
October 2016: Joints
https://www.readbyqxmd.com/read/28215115/correlation-between-anatomy-of-the-scapula-and-the-incidence-of-rotator-cuff-tear-and-glenohumeral-osteoarthritis-via-radiological-study
#19
Mohd Fairudz Bin Mohd Miswan, Mohd Shahril Bin Ahmad Saman, Teo Seow Hui, Mohamed Zubair Mohamed Al-Fayyadh, Mohamed Razif Bin Mohamed Ali, Ng Wuey Min
INTRODUCTION: We conducted a study to elucidate the correlation between the anatomy of the shoulder joint with the development of rotator cuff tear (RCT) and glenohumeral osteoarthritis (GHOA) by using acromioglenoid angle (AGA). MATERIALS AND METHODS: The AGA is a new measured angle formed between the line from midglenoid to lateral end of the acromion with the line parallel to the glenoid surface. The AGA was measured in a group of 85 shoulders with RCT, 49 with GHOA and 103 non-RCT/GHOA control shoulders...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28208959/secondary-aneurysmal-bone-cyst-of-the-scapula-treated-by-ct-guided-percutaneous-polidocanol-injection-a-case-report
#20
Rahul Mohan, Gopakumar Thanuvan Sreekumaran
Aneurysmal Bone Cyst (ABC) is a rare benign tumour, usually affecting early age group and at the metaphysis of long bones. Scapular ABC's are even more rare, especially successfully treated cases. Standard treatment methods like curettage have high recurrence rates hence, adjuvant therapy may be required to avoid recurrence. Polidocanol sclerotherapy is becoming popular because of its safety and efficacy and is being tried successfully for both active as well as aggressive primary ABC of size 3-5cm. We used the same principle in a large secondary ABC of the scapula, which to the best of our knowledge has not been yet reported...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
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