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https://www.readbyqxmd.com/read/28528016/the-influence-of-humeral-neck-shaft-angle-and-glenoid-lateralization-on-range-of-motion-in-reverse-shoulder-arthroplasty
#1
Birgit S Werner, Jean Chaoui, Gilles Walch
BACKGROUND: Recent developments in reverse shoulder arthroplasty (RSA) have focused on changes in several design-related parameters, including humeral component design, to allow for easier convertibility. Alterations in humeral inclination and offset on shoulder kinematics may have a relevant influence on postoperative outcome. This study used a virtual computer simulation to evaluate the influence of humeral neck shaft angle and glenoid lateralization on range of motion in onlay design RSA...
May 17, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28514491/3d-image-based-morphometric-analysis-of-the-scapular-neck-length-in-subjects-undergoing-reverse-shoulder-arthroplasty
#2
P Simon, M Diaz, M Cusick, B Santoni, M Frankle
INTRODUCTION: Scapular notching after RSA may, in part, be related to a patient's scapular morphology. The purpose of this study was to develop a novel 3D measurement technique to describe infraglenoid tubercle morphometry. We hypothesize that the parameters describing infraglenoid tubercle would be normally distributed and would correlate with individual's demographics and glenoid morphometry. MATERIALS AND METHODS: A group of 110 subjects treated with RSA were evaluated...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28507972/bilateral-coracoid-avulsion-fractures-with-unilateral-anterior-instability-with-glenoid-bone-loss-use-of-avulsed-fragment-for-reconstruction-of-glenoid
#3
Prateek Kumar Gupta, Ashis Acharya, Amit Mourya
INTRODUCTION: Coracoid fractures are often missed since the fracture is not visualized in a routine anteroposterior view of the shoulder and special views are not ordered. Shoulder dislocation is common but it is rare to have a dislocation with a coracoid fracture. The purpose of this paper is to present the rare occurrence of bilateral coracoid fractures in a patient with unilateral anterior shoulder instability managed using the same fractured coracoid fragment by the latarjet procedure...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28506491/mapping-of-glenoid-bone-loss-in-recurrent-anterior-shoulder-instability-is-there-a-particular-deficit-pattern
#4
Benjamin Bockmann, Arne Johannes Venjakob, Frank Reichwein, Marthe Hagenacker, Wolfgang Nebelung
BACKGROUND: Glenoid bone loss in recurrent anterior shoulder instability is a challenging problem for shoulder surgeons, and knowledge about the anatomy of glenoid deficits is scarce. In this study, we tried to evaluate the pattern of this pathology. METHODS: Our analysis included 44 shoulders from 44 patients with recurrent anterior shoulder instability accompanied by a clinically relevant glenoid bone loss. The defect size, the localization of the inferior defect edge, and the defect angle were measured, and osseous landmarks were identified...
May 11, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28497167/results-of-arthroscopic-bankart-repair-with-hill-sachs-remplissage-for-anterior-shoulder-instability
#5
Nicolas Bonnevialle, Vadim Azoulay, Amélie Faraud, Fanny Elia, Pascal Swider, Pierre Mansat
PURPOSE: The aim of this study was to evaluate mid-term outcomes of Bankart repair with Hill-Sachs remplissage (BHSR) and to highlight prognostic factors of failure. METHODS: Thirty-four patients operated on for anterior shoulder instability with BHSR were enrolled in a prospective non-randomised study. Clinical and radiographic evaluation was performed at 1.5, three, six months and yearly thereafter. Outcome measures included Rowe and Walch-Duplay score. RESULTS: At mean follow-up of 35 months (24-63), the Rowe and Walch-Duplay scores reached respectively 92...
May 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28488015/no-relationship-between-critical-shoulder-angle-and-glenoid-erosion-after-shoulder-hemiarthroplasty-a-comparative-radiographic-study
#6
S Cerciello, B J Morris, E Visonà, K Corona, T B Edwards, N Maffulli, G Walch
INTRODUCTION: Symptomatic glenoid erosion is one of the most common causes of functional impairment after shoulder hemiarthroplasty. A decrease in the critical shoulder angle (CSA) has been associated with the development of shoulder arthritis. The inter-observer reliability of the CSA and the relationship between CSA and symptomatic glenoid erosion after shoulder hemiarthroplasty were investigated. MATERIALS AND METHODS: Twenty-eight patients with symptomatic glenoid erosion after anatomic hemiarthroplasty were compared to a control group of 30 patients with no signs of symptomatic glenoid erosion...
May 9, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28483434/posterior-glenoid-bone-grafting-in-total-shoulder-arthroplasty-for-osteoarthritis-with-severe-posterior-glenoid-wear
#7
Gregory P Nicholson, Gregory L Cvetanovich, Allison J Rao, Patrick O'Donnell
BACKGROUND: Total shoulder arthroplasty (TSA) in cases with posterior wear can be addressed by eccentric reaming of the anterior glenoid or by augmenting the posterior glenoid with bone grafting or augmented glenoid implants. We report the results of TSA with posterior glenoid bone grafting (PGBG) with humeral head autograft in patients with shoulder osteoarthritis and severe posterior glenoid wear. METHODS: A retrospective review of cases from 2004 to 2014 revealed 34 patients...
May 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28483433/can-glenoid-wear-be-accurately-assessed-using-x-ray-imaging-evaluating-agreement-of-x-ray-and-magnetic-resonance-imaging-walch-classification
#8
Michaela Kopka, Mitchell Fourman, Ashish Soni, Andrew C Cordle, Albert Lin
BACKGROUND: The Walch classification is the most recognized means of assessing glenoid wear in preoperative planning for shoulder arthroplasty. This classification relies on advanced imaging, which is more expensive and less practical than plain radiographs. The purpose of this study was to determine whether the Walch classification could be accurately applied to x-ray images compared with magnetic resonance imaging (MRI) as the gold standard. We hypothesized that x-ray images cannot adequately replace advanced imaging in the evaluation of glenoid wear...
May 5, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28478901/three-dimensional-quantitative-analysis-of-humeral-head-and-glenoid-bone-defects-with-recurrent-glenohumeral-instability
#9
Noboru Matsumura, Satoshi Oki, Masateru Kitashiro, Mayu Minemoto, Takeru Ichikawa, Morio Matsumoto, Masaya Nakamura, Takeo Nagura
BACKGROUND: Although bone defects of the humeral head and glenoid could affect glenohumeral instability, bone loss has not been sufficiently evaluated. The purpose of this study was to quantify bone defects 3-dimensionally in cases with glenohumeral instability. METHODS: Three-dimensional surface models of bilateral proximal humeri and glenoids were reconstructed from computed tomography scans of 90 patients with symptomatic, unilateral, recurrent glenohumeral instability...
May 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28476372/editorial-commentary-are-all-suture-anchors-as-good-as-conventional-anchors
#10
EDITORIAL
F Alan Barber
Research in this issue, like other biomechanical testing, suggests that the all-suture anchors studied here seem strong enough for glenoid and acetabular applications. Testing suture anchors in nonbiologic material may be problematic unless that material is validated or there is a control. The cyclic loads used influence the data, and oscillating between 10 and 50 N does not allow for sufficient anchor performance differentiation. The next question is whether there will be any adverse events associated with the use of all-suture anchors clinically...
May 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28476368/editorial-commentary-distal-tibia-allograft-as-an-option-for-glenoid-reconstruction-in-recurrent-shoulder-instability-it-s-all-about-the-bone
#11
EDITORIAL
Ronak M Patel, Anthony Miniaci
Bony defects in recurrent shoulder instability can lead to the failure of soft tissue reconstruction. Many techniques have been developed to address glenoid defects in an attempt to prevent recurrent instability. However, the high complication rates with the Latarjet procedure have led surgeons to identify other sources of bone graft, including the distal tibia allograft (DTA). The DTA appears to be a suitable option for anterior glenoid reconstruction, highlighting the importance of reconstructing all bony defects and the versatility and efficacy of allograft bone blocks...
May 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28474965/the-effect-of-subcritical-bone-loss-and-exposure-on-recurrent-instability-after-arthroscopic-bankart-repair-in-intercollegiate-american-football
#12
Jonathan F Dickens, Brett D Owens, Kenneth L Cameron, Thomas M DeBerardino, Brendan D Masini, Karen Y Peck, Steven J Svoboda
BACKGROUND: There is no consensus on the optimal method of stabilization (arthroscopic or open) in collision athletes with anterior shoulder instability. PURPOSE: To examine the effect of "subcritical" bone loss and football-specific exposure on the rate of recurrent shoulder instability after arthroscopic stabilization in an intercollegiate American football population. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Fifty intercollegiate football players underwent primary arthroscopic stabilization for anterior shoulder instability and returned to football for at least a single season...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28474074/-measurement-of-temporomandibular-joint-space-of-patients-with-obstructive-sleep-apnea-hypopnea-syndrome
#13
Rui Zhao, Wei-Sheng Wen, Ge Yang, Ye Tao, Rui Jia
PURPOSE: This research evaluated the morphological differences of temporomandibular joint (TMJ) between patients with obstructive sleep apnea hypopnea Syndrome (OSAHS) and normal population using magnetic resonance imaging (MRI). METHODS: Eighteen OSAHS patients were admitted from January 2014 to May 2016 and 18 healthy adults were chosen as control. OSAHS patients were divided into three sub-groups (n=6), i.e. the mild group, the moderate group and the severe group, according to apnea and hypopnea index (AHI)...
February 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28470339/magnetic-resonance-imaging-and-clinical-features-of-glenoid-labral-flap-tears
#14
Jessica K Stewart, Dean C Taylor, Emily N Vinson
OBJECTIVE: Displaced flaps of glenoid labral tissue are an uncommonly encountered finding on MRI of the shoulder, and are of unclear clinical significance. The purpose of this study is to describe the imaging characteristics of displaced glenoid labral flaps, evaluate for any common concomitant injuries, and identify the typical clinical presentation and management of patients with this lesion. MATERIALS AND METHODS: This retrospective, observational study was approved by the institutional review board...
May 3, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28463922/ultrasound-screening-for-posterior-shoulder-dislocation-in-infants-with-persistent-brachial-plexus-birth-palsy
#15
Andrea S Bauer, Justin F Lucas, Nasser Heyrani, Ryan L Anderson, Leslie A Kalish, Michelle A James
BACKGROUND: Early detection of posterior shoulder dislocation in infants with brachial plexus birth palsy (BPBP) is essential, but it may be difficult to accomplish with physical examination alone. The aim of this study was to determine the prevalence of shoulder dislocation in patients with BPBP using ultrasound and to identify which physical examination measurements correlated most with dislocation in these patients. METHODS: This study was a retrospective review of data obtained in an ultrasound screening program of infants with BPBP born from January 2011 to April 2014...
May 3, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28455478/early-migration-of-a-partially-cemented-fluted-glenoid-component-inserted-using-a-cannulated-preparation-system
#16
D Nuttall, A Birch, J F Haines, A C Watts, I A Trail
AIMS: Radiostereometric analysis (RSA) allows an extremely accurate measurement of early micromotion of components following arthroplasty. PATIENTS AND METHODS: In this study, RSA was used to measure the migration of 11 partially cemented fluted pegged glenoid components in patients with osteoarthritis who underwent total shoulder arthroplasty using an improved surgical technique (seven men, four women, mean age 68). Patients were evaluated clinically using the American Shoulder and Elbow Surgeons (ASES) and Constant-Murley scores and by CT scans two years post-operatively...
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28451621/is-there-an-association-between-the-critical-shoulder-angle-and-clinical-outcome-after-rotator-cuff-repair
#17
Jacob M Kirsch, Amit Nathani, Christopher B Robbins, Joel J Gagnier, Asheesh Bedi, Bruce S Miller
BACKGROUND: Variations in scapular morphology have been associated with the development of atraumatic rotator cuff tears (RCTs). The critical shoulder angle (CSA) accounts for both glenoid inclination and lateral extension of the acromion. The impact of the CSA on outcomes after rotator cuff repair (RCR) has not been investigated previously. HYPOTHESIS: Our hypothesis was that individuals with smaller CSAs will have better patient-reported outcome scores over time compared with those with larger CSAs...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28439163/superolateral-dislocation-of-bilateral-intact-mandibular-condyles-a-rare-case-series
#18
Satishkumar G Patil, Bindu S Patil, Udupikrishna Joshi, B M Rudagi, Aafreen Aftab
BACKGROUND AND PURPOSE: The dislocation of mandibular condyle is a clinical condition in which the head of condyle has been displaced out of the glenoid fossa. Complete dislocation of the mandibular condyle can occur in anterior, posterior, lateral and superior direction. Among these dislocations, bilateral superolateral dislocation of mandibular condyles is quite rare and often misdiagnosed. Because of its rare occurrence and unusual clinical course, the best treatment is debatable. PATIENTS AND METHOD: We present the first case series of true bilateral superolateral dislocation of intact mandibular condyles (Type 2B) without fracturing the Zygomatic arch, associated with symphysis fracture...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28437496/novel-solution-for-massive-glenoid-defects-in-shoulder-arthroplasty-a-patient-specific-glenoid-vault-reconstruction-system
#19
David M Dines, Lawrence Gulotta, Edward V Craig, Joshua S Dines
Complex glenoid deformities present the most difficult challenges in shoulder arthroplasty. These deformities may be caused by severe degenerative or congenital deformity, posttraumatic anatomy, tumor, or, in most cases, bone loss after glenoid failure in anatomical total shoulder arthroplasty. Methods of treating severe bone loss have included inlay and onlay bone-graft options with augmented fixation and, in severe cases, salvage hemiarthroplasty with limited goal expectations. Unfortunately, none of these methods has provided consistently satisfactory reproducible results...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28430721/outcomes-of-reverse-total-shoulder-arthroplasty-for-proximal-humeral-fractures-primary-arthroplasty-versus-secondary-arthroplasty-following-failed-proximal-humeral-locking-plate-fixation
#20
Emilio Sebastia-Forcada, Alejandro Lizaur-Utrilla, Román Cebrian-Gomez, Francisco A Miralles-Muñoz, Fernando A Lopez-Prats
OBJECTIVE: To compare the outcomes of reverse shoulder arthroplasty (RSA) between patients with failed proximal humeral locking plate (PHLP) fixation and those with acute fractures. DESIGN: Matched case-control study. SETTING: University hospital, level I trauma center. PATIENTS: 30 consecutive patients with fracture sequelae due to failed PHLP fixation (mean age 73) were age- and gender-matched to 30 patients with acute fracture (mean age 75)...
April 6, 2017: Journal of Orthopaedic Trauma
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