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https://www.readbyqxmd.com/read/29644267/double-plate-fixation-in-double-clavicle-fractures-a-case-report
#1
Xiaoyang Qi, Xusheng Qiu, Yixin Chen
Bilateral clavicle fractures are rare; Double clavicle fractures are particularly rare. We report a case of a 23-year-old woman presenting with double fractures (middle and distal end) of the right clavicle and single fracture of the left clavicle after she suffered a road traffic accident. Four days after the injury, the right clavicle was fixed with a reconstruction locking plate and a hook plate, the left clavicle was fixed by a S-shaped locking plate. Bone union was achieved 3 months after surgery. The patient regained full range of shoulder motion with a mild pain in the right acromion 21 months after the operation...
October 2017: Trauma Case Reports
https://www.readbyqxmd.com/read/29613881/in-vivo-evaluation-of-subacromial-and-internal-impingement-risk-in-asymptomatic-individuals
#2
Margaret S Coats-Thomas, Daniel F Massimini, Jon J P Warner, Amee L Seitz
OBJECTIVE: The study aim was to evaluate subacromial and internal impingement risk between shoulders (dominant/non-dominant) during dynamic motion using subject-specific anatomy and precise in vivo kinematics. DESIGN: In a prospective cross-sectional study, 9 subjects underwent bilateral MR (N=18 shoulders) and fluoroscopic imaging during external rotation at 90° abduction (ER) and elevation. Subject-specific bone models were created and distances from footprint to (a) acromion and (b) glenoid were measured to evaluate risk...
April 2, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29600672/-case-control-study-on-polymer-polylactic-acid-absorbable-medical-film-for-preventing-acromion-adhesion-after-arthroscopic-rotator-cuff-repair
#3
Wei Lin, Huan Xu, Hai-Lin Xing, Rong-Zong Zheng, Jin-He Ying
OBJECTIVE: To study effect of shoulder joint function after rotator cuff repair of polylactic acid absorbable membrane. METHODS: From September 2015 to December 2016, 50 patients diagnosed with rotator cuff tear were selected and divided into treatment group and control group. There were 25 patients in control group, including 12 males and 13 females, with an average age of (48.7±3.5) years old, who received simple arthroscopic rotator cuff repair. There were 25 patients in treatment group, including 11 males and 14 females, with an average age of(49...
March 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29581658/effect-of-interferential-current-therapy-on-forward-head-posture
#4
Ye-Jin Choi, Hee-Jung Kim, Sun-Young Han, Bo-Ram Choi
[Purpose] The purpose of this study was to examine the effects of interferential current therapy on the shoulder muscles of subjects with forward head posture. [Subjects and Methods] Thirty volunteers (15 forward head posture, 15 control) participated in this study. Interferential current therapy treatment was conducted for 10 min, three times per week, for 3 weeks on both the upper trapezius and levator scapulae. Subjects were measured anterior both acromion distance and posterior both acromial distance using a ruler, and the forward head posture angle using an electronic application...
March 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29576312/directional-bias-of-soft-tissue-artifacts-on-the-acromion-during-recording-of-3d-scapular-kinematics
#5
Shoji Konda, Wataru Sahara, Kazuomi Sugamoto
Scapular kinematics during sports performances can be recorded using skin-mounted trackers attached to the skin overlying the acromion for continuous data collection without restricting natural motions of the subject relative to medical imaging analyses limiting its use for wide-range or high-speed motions. This study aimed to describe the existence of a directional bias in the translational and rotational errors of skin-mounted trackers using a 3D magnetic resonance imaging (3D-MRI) protocol. 3D-MRI scans of the healthy right shoulders of 19 males were acquired in 12 arm positions...
March 10, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29569025/-simultaneous-fracture-of-the-acromion-and-coracoid-process-rare-variant-of-double-disruption-of-the-superior-shoulder-suspensory-complex
#6
Thomas Westphal, Roland Lippisch, Julian Jürgens, Stefan Piatek
INTRODUCTION: Simultaneous fracture of the acromion and coracoid process represents a double disruption of the superior shoulder suspensory complex (SSSC). To date, the two largest reported series have comprised five and eight cases. The aim of this study was to investigate the functional outcome in patients who sustained this rare injury and to provide a review of the relevant literature. MATERIAL AND METHODS: In this retrospective study, patients who were surgically treated between 2009 and 2014 were identified from medical records and the patients were asked to attend a follow-up examination...
March 22, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29558162/the-integrity-of-the-acromioclavicular-capsule-ensures-physiological-centering-of-the-acromioclavicular-joint-under-rotational-loading
#7
Felix G E Dyrna, Florian B Imhoff, Andreas Voss, Sepp Braun, Elifho Obopilwe, John M Apostolakos, Daichi Morikawa, Brendan Comer, Andreas B Imhoff, Augustus D Mazzocca, Knut Beitzel
BACKGROUND: The acromioclavicular (AC) capsule is an important stabilizer against horizontal translation and also contributes to the strut function of the clavicle, which guides rotation of the scapula. To best reproduce the biomechanical properties and the complex 3-dimensional (3D) guidance of the AC joint, detailed knowledge of the contribution of each of the distinctive capsular structures is needed. Purpose/Hypothesis: To perform a detailed biomechanical evaluation of the specific capsular structures of the AC joint and their contribution to translational and rotational stability...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29557509/acromioclavicular-joint-dislocation-a-dog-bone-button-fixation-alone-versus-dog-bone-button-fixation-augmented-with-acromioclavicular-repair-a-finite-element-analysis-study
#8
Sermsak Sumanont, Supachoke Nopamassiri, Artit Boonrod, Punyawat Apiwatanakul, Arunnit Boonrod, Chanakarn Phornphutkul
BACKGROUND: Suspension suture button fixation was frequently used to treat acromioclavicular joint (ACJ) dislocation. However, there were many studies reporting about complications and residual horizontal instability after fixation. Our study compared the stability of ACJ after fixation between coracoclavicular (CC) fixation alone and CC fixation combined with ACJ repair by using finite element analysis (FEA). MATERIALS AND METHODS: A finite element model was created by using CT images from the normal shoulder...
March 20, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29516107/-reversed-total-shoulder-arthroplasty-in-rotator-cuff-defect-arthropathy
#9
REVIEW
T Patzer
BACKGROUND: In a progredient rotator cuff tear with tendon retraction, fatty infiltration and atrophy of rotator cuff muscles the humerus cannot be centered and stabilized sufficiently in the glenohumeral joint. This leads to rotator cuff defect arthropathy as an eccentric osteoarthritis with acetabularization and wear of the acromion, as well as of the glenoid. INDICATION: A painful pseudoparalysis of the shoulder indicates the implantation of a reversed total shoulder arthroplasty (rTSA) to reduce pain and restore active motion...
March 7, 2018: Der Orthopäde
https://www.readbyqxmd.com/read/29502699/editorial-commentary-shoulder-anatomy-finding-the-axillary-nerve-measure-twice-cut-once
#10
EDITORIAL
Wesley M Nottage
Most descriptions of shoulder anatomy note that the axillary nerve lies approximately 5 cm below the anterolateral corner of the acromion, and the nerve has been reported to range from 2 to 7 cm from the acromial edge, depending on the patient and measuring technique. The safe trans-deltoid operable area has been described as up to 4 cm below the acromion. A useful clinical guide I use is that the inferior extent of the subacromial bursa ends above the axillary nerve.
March 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29490599/the-end-of-an-era
#11
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
https://www.readbyqxmd.com/read/29479963/soft-spot-the-important-zone-at-the-standard-posterior-portal-of-shoulder-arthroscopy
#12
Burcu Erçakmak, Ceren Günenç Beşer, M. Hakan Özsoy, M. Deniz Demiryürek, Alp Bayramoğlu, K. Mutlu Hayran
Background/aim: The localization of the standard posterior portal of shoulder arthroscopy and landmarks mentioned in the literature are unclear. The purpose of this prospective cadaveric study was to determine the localization of the standard posterior portal and its distance to the neural structures. Materials and methods: One fresh frozen and 10 formalin-fixed adult cadaveric shoulders were dissected. In the beach chair position, a 5-mm trocar was placed anteroposteriorly from the superior edge of the subscapularis muscle, superior to the tip of the coracoid process and tangent to the glenoid...
February 23, 2018: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29471183/axillary-motor-nerve-conduction-study-description-of-technique-and-provision-of-normative-data
#13
Panagiotis Zis, Marios Hadjivassiliou, Dasappaiah Ganesh Rao
BACKGROUND: Axillary nerve lesions can commonly occur secondary to trauma or brachial plexopathy. Our aim was to describe our technique of axillary nerve motor conduction studies and provide the respective normal values. METHODS: Active electrode was positioned over the most prominent portion of the middle deltoid, approximately 5-7 cm distal to the acromion. Reference electrode was positioned over the acromion. Ground electrode was placed between the active and the reference electrodes...
February 10, 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29457419/-treatment-of-scapular-fractures-with-lateral-incision-and-bridge-combined-internal-fixation-system
#14
Yu-Cheng Zhou, Lin-Xin Yu, Hong Duan, Jie Min, Xiao-Feng Yuan, Peng Yu, Bang-Xu Nie, Jun Hu
OBJECTIVE: To investigate the clinical results of scapula fractures with lateral incision combined with bridge internal fixation system. METHODS: From October 2012 to December 2016, 20 cases of scapular fractures were treated through the lateral incision combined with bridge fixation system, including 15 males and 5 females, with an average age of 31.6 years old(ranged, 21 to 52 years old). Fourteen cases were scapular body fracture, 10 were scapular neck fracture, 6 were scapular fracture, 1 was acromion fracture, 1 was coracoid fracture, 4 were the glenoid rim fracture, 3 were the glenoid fossa fracture...
October 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29455497/-clinical-research-of-treating-the-avulsed-fracture-of-humerus-greater-tuberosity-using-an-arthroscopic-double-row-suture-anchor-fixation-technique
#15
Ji Li, Wei-Xiong Liao, Hao Zhang, Yi-Meng Yang, Ke-Tao Wang, Zhong-Li Li
OBJECTIVE: To evaluate the early clinical effects of treating the avulsed fracture of humerus greater tuberosity using the double-row suture anchor fixation technique. METHODS: Total 20 patients with the avulsed fracture of the greater tuberosity of the humerus were treated from September 2009 to January 2013. There were 12 males and 7 females, with an average age of 46.8 years old(24 to 69 years old). Eleven patients had injuries on right shoulder joint and 8 patients had injuries on left side...
August 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29449083/three-dimensional-scapular-dyskinesis-in-hook-plated-acromioclavicular-dislocation-including-hook-motion
#16
Eugene Kim, Seunghee Lee, Hwa-Jae Jeong, Jai Hyung Park, Se-Jin Park, Jaewook Lee, Woosub Kim, Hee Jin Park, So Yeon Lee, Tsuyoshi Murase, Kazuomi Sugamoto, Sumika Ikemoto
BACKGROUND: The purpose of this study is to analyze the 3-dimensional scapular dyskinesis and the kinematics of a hook plate relative to the acromion after hook-plated acromioclavicular dislocation in vivo. Reported complications of acromioclavicular reduction using a hook plate include subacromial erosion and impingement. However, there are few reports of the 3-dimensional kinematics of the hook and scapula after the aforementioned surgical procedure. METHODS: We studied 15 cases of acromioclavicular dislocation treated with a hook plate and 15 contralateral normal shoulders using computed tomography in the neutral and full forward flexion positions...
February 13, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29445933/multimodality-imaging-of-subacromial-impingement-syndrome
#17
REVIEW
Lionel Pesquer, Sophie Borghol, Philippe Meyer, Mickael Ropars, Benjamin Dallaudière, Pierre Abadie
Subacromial impingement syndrome results from irritation of the tendons of the rotator cuff muscles in the subacromial space and may manifest as a range of pathologies. However, subacromial impingement is a dynamic condition for which imaging reveals predisposing factors but no pathognomonic indicators. Also, the usual imaging features of subacromial impingement may be seen in symptomatic and asymptomatic patients. Therefore, imaging is able to detect tears and describe the risk factors of impingement but cannot confirm subacromial impingement...
February 14, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29410583/correlation-between-pulmonary-functions-and-respiratory-muscle-activity-in-patients-with-forward-head-posture
#18
Jeong-Il Kang, Dae-Keun Jeong, Hyun Choi
[Purpose] The purpose of this study is to determine the effect that secondary postural deformities and chronic postural abnormalities have on lung capacity, as well as correlate the activity of the respiratory muscles. The results provide basic objective data about the forward head posture and respiratory muscle activity that can be used in clinical situations. [Subjects and Methods] The subjects used in this study were 24 patients aged 25 to 35 years old who visited a hospital in Jeollanam-do Province, Korea, between September 2015 and January 2016...
January 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29395551/quantitative-assessment-of-the-coracoacromial-and-the-coracoclavicular-ligaments-with-3-dimensional-mapping-of-the-coracoid-process-anatomy-a-cadaveric-study-of-surgically-relevant-structures
#19
Jorge Chahla, Daniel Cole Marchetti, Gilbert Moatshe, Márcio B Ferrari, George Sanchez, Alex W Brady, Jonas Pogorzelski, George F Lebus, Peter J Millett, Robert F LaPrade, Matthew T Provencher
PURPOSE: To perform a quantitative anatomic evaluation of the (1) coracoid process, specifically the attachment sites of the conjoint tendon, the pectoralis minor, the coracoacromial ligament (CAL), and the coracoclavicular (CC) ligaments in relation to pertinent osseous and soft tissue landmarks; (2) CC ligaments' attachments on the clavicle; and (3) CAL attachment on the acromion in relation to surgically relevant anatomic landmarks to assist in planning of the Latarjet procedure, acromioclavicular (AC) joint reconstructions, and CAL resection distances avoiding iatrogenic injury to surrounding structures...
January 24, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29394434/human-shoulder-response-to-high-velocity-lateral-impact
#20
Matthieu Lebarbé, Philippe Vezin, Frédéric Rongiéras, Denis Lafont
The armies of the North Atlantic Treaty Organization need a shoulder injury criterion for the EuroSID-2re dummy that must be reliable over a large range of loading conditions, from high velocity, short duration impacts (28 m/s - 3 ms) to low velocity long, duration impacts (4 m/s - 50 ms). In the literature, the human shoulder response to lateral impact was investigated at bounds of the loading condition spectrum as previously mentioned. For the low velocities, the injuries were mainly clavicle fractures and the maximum compression between the acromion and the sternum (Cmax) was proposed as an injury criterion...
November 2017: Stapp Car Crash Journal
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