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https://www.readbyqxmd.com/read/29781910/superior-baseplate-inclination-is-associated-with-instability-after-reverse-total-shoulder-arthroplasty
#1
Robert Z Tashjian, Brook I Martin, Cassandra A Ricketts, Heath B Henninger, Erin K Granger, Peter N Chalmers
BACKGROUND: Instability is the most common complication after reverse total shoulder arthroplasty (rTSA). In the native glenohumeral joint, in addition to full dislocations, more subtle forms of instability exist. However, the incidence of more subtle forms of instability, the factors associated with instability, and the effect of instability on validated outcome scores after rTSA remain poorly understood. QUESTIONS/PURPOSES: (1) After rTSA, what is the risk of instability, including more subtle forms of subjective instability? (2) What are the factors associated with instability? (3) Are more subtle forms of instability associated with lower American Shoulder and Elbow Surgeons (ASES) functional outcome scores than those patients without instability? METHODS: A total of 168 rTSAs were performed during the study period...
May 17, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29780738/effect-of-rapid-maxillary-expansion-on-glenoid-fossa-and-condyle-fossa-relationship-in-growing-patients-megp-study-protocol-for-a-controlled-clinical-trial
#2
Mona Sayegh Ghoussoub, Khaldoun Rifai, Robert Garcia, Ghassan Sleilaty
Aims and Objectives: Rapid maxillary expansion (RME) is an orthodontic nonsurgical procedure aiming at increasing the width of the maxilla by opening mainly the intermaxillary suture in patients presenting a transverse maxillary skeletal deficiency. The objectives of the current prospective controlled clinical and radiographic study are to evaluate the hypothesis that RME in growing patients will result in radiographic changes at the level of interglenoid fossa distance, condyle-fossa relationship, and nasal cavity widths compared to the group who received no treatment initially and served as untreated control...
March 2018: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29778592/comparative-analysis-of-2-glenoid-version-measurement-methods-in-variable-axial-slices-on-3-dimensionally-reconstructed-computed-tomography-scans
#3
Gregory Cunningham, John Freebody, Margaret M Smith, Mohy E Taha, Allan A Young, Benjamin Cass, Bruno Giuffre
BACKGROUND: Most glenoid version measurement methods have been validated on 3-dimensionally corrected axial computed tomography (CT) slices at the mid glenoid. Variability of the vault according to slice height and angulation has not yet been studied and is crucial for proper surgical implant positioning. The aim of this study was to analyze the variation of the glenoid vault compared with the Friedman angle according to different CT slice heights and angulations. The hypothesis was that the Friedman angle would show less variability...
May 16, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29778591/complications-of-antibiotic-cement-spacers-used-for-shoulder-infections
#4
Edward G McFarland, Jorge Rojas, Jeremy Smalley, Amrut U Borade, Jacob Joseph
BACKGROUND: Our aim was to evaluate complications related to commercially available antibiotic cement spacers used in the treatment of shoulder infections. METHODS: We performed a retrospective review of commercially available antibiotic spacers implanted in 53 patients (60 spacers) between April 2009 and October 2017 as part of a 2-stage treatment plan for infection at the site of a shoulder arthroplasty (n = 39), other (non-arthroplasty) shoulder surgery (n = 8), or primary shoulder infection without previous surgery (n = 6)...
May 16, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29774949/the-critical-shoulder-angle-acromial-coverage-is-more-relevant-than-glenoid-inclination
#5
Silvan Beeler, Anita Hasler, Tobias Götschi, Dominik C Meyer, Christian Gerber
It is still unknown whether glenoid inclination or lateral acromial roof extension is a more important determinant for development of rotator cuff tears (RCT) or osteoarthritis (OA) of the shoulder. It was the purpose of this study, to evaluate whether there is a potential predominance of one of these factors in pathogenesis of RCT or concentric OA. We analyzed 70 shoulders with advanced degenerative RCT and 54 shoulders with concentric OA undergoing primary shoulder arthroplasty (anatomical or reverse) using antero-posterior radiography and multiplanar computed tomography...
May 18, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29770769/ct-fluoroscopy-guided-percutaneous-osteoplasty-with-or-without-radiofrequency-ablation-in-the-treatment-of-painful-extraspinal-and-spinal-bone-metastases-technical-outcome-and-complications-in-29-patients
#6
Caroline A Burgard, Julien Dinkel, Frederik Strobl, Philipp M Paprottka, Nicolai Schramm, Maximilian Reiser, Christoph G Trumm
PURPOSE: We aimed to assess the safety and technical outcome of computed tomography (CT) fluoroscopy-guided osteoplasty with or without prior percutaneous radiofrequency ablation (RFA) in patients with painful osteolyses. METHODS: We performed a retrospective analysis of 29 patients with painful extraspinal and spinal osteolyses (16 women, 13 men; 63.1±14.4 years) who underwent CT fluoroscopy-guided osteoplasty (10-20 mAs tube current) with or without RFA (26 and 14 lesions, respectively), in 33 consecutive procedures from 2002 to 2016...
May 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29762108/midterm-follow-up-of-divergent-peg-glenoid-components-in-total-shoulder-arthroplasty
#7
Thomas W Wright, Tony L Bryant, Christopher G Stevens, Brett C Bentley, Kevin W Farmer
Glenoid component aseptic loosening is the most common source of total shoulder arthroplasty (TSA) revision. Divergent pegged glenoids may improve fixation. Thirty-four patients underwent divergent peg TSA. Data were reviewed for component loosening. Failure was defined as the need for revision after loosening. The last postoperative radiographs were graded on a Lazarus glenoid lucency scale. Mean follow-up was 5.6 years ± 2.44 (range, 2-10 years). Radiolucency around one or fewer pegs was noted in 14/20 patients...
2018: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/29759906/determining-glenoid-component-version-after-total-shoulder-arthroplasty
#8
Manish P Mehta, Laura A Vogel, Brian B Shiu, Elizabeth R Dennis, Djuro Petkovic, William N Levine, Charles M Jobin
BACKGROUND: Glenoid component loosening after total shoulder arthroplasty (TSA) may occur if retroversion is not corrected to <10°. However, accurately measuring postoperative glenoid component version has been difficult without postoperative computed tomography (CT), adding cost and radiation exposure outside of the standard radiographic follow-up. We present a new method to assess glenoid component version after TSA using only routine preoperative CT and postoperative radiographs (x-rays)...
May 11, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29759905/analysis-of-4063-complications-of-shoulder-arthroplasty-reported-to-the-us-food-and-drug-administration-from-2012-to-2016
#9
Jeremy S Somerson, Jason E Hsu, Moni B Neradilek, Frederick A Matsen
BACKGROUND: Most of the literature on shoulder arthroplasty failure comes from high-volume centers. These reports tend to exclude the experience of community orthopedic surgeons, who perform most of the shoulder joint replacements. METHODS: We analyzed the failure reports mandated by the US Food and Drug Administration for all hospitals. Each reported event from 2012 to 2016 was characterized by implant, failure mode, and year of surgery. RESULTS: For the 1673 anatomic arthroplasties, the most common failure modes were glenoid component failure (20...
May 11, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29754843/revision-of-failed-hemiarthroplasty-for-painful-glenoid-arthrosis-to-anatomic-total-shoulder-arthroplasty
#10
Mihir M Sheth, Daniel Sholder, Joseph Abboud, Mark D Lazarus, Matthew L Ramsey, Gerald R Williams, Surena Namdari
BACKGROUND: The impending burden of revision shoulder arthroplasty has increased interest in outcomes of revision procedures. Painful glenoid arthrosis following hemiarthroplasty is a common cause of reoperation, and conversion to anatomic total shoulder arthroplasty is one option. METHODS: We identified patients who underwent revision of painful hemiarthroplasty to total shoulder arthroplasty over a 15-year period in a single tertiary-care health system. Presurgical and operative data were analyzed for 28 patients who met the inclusion and exclusion criteria...
May 10, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29754193/mr-arthrogram-of-the-postoperative-glenoid-labrum-normal-postoperative-appearance-versus-recurrent-tears
#11
Christin A Tiegs-Heiden, Nicholas G Rhodes, Mark S Collins, Quintin A Fender, Benjamin M Howe
OBJECTIVE: The purpose of this study is to describe the MR arthrogram appearance of the postoperative glenoid labrum and to describe the features consistent with recurrent tear. MATERIALS AND METHODS: We identified 30 patients who had undergone glenoid labral repair, had a subsequent MR arthrogram of his or her shoulder, and went on to repeat shoulder arthroscopy. Each MR arthrogram was reviewed blindly, and the glenoid labrum was described as normal, irregular, or torn...
May 13, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29752508/comparison-of-shoulder-replacement-to-treat-osteoarthritis-secondary-to-instability-surgery-and-primary-osteoarthritis-a-retrospective-controlled-study-of-patient-outcomes
#12
Giovanni Merolla, Simone Cerciello, Stefano Marenco, Elisabetta Fabbri, Paolo Paladini, Giuseppe Porcellini
PURPOSE: We hypothesized that osteoarthritis developing after instability surgery is radiographically similar to primary arthritis and that arthroplasty provides comparable outcomes in patients with these two types of osteoarthritis. METHODS: Patients with osteoarthritis due to instability surgery (group I) and with primary osteoarthritis (group II) were included. Mean follow-up was 52.6 and 41.6 months, respectively. Hemiarthroplasties (HA) were 32% in group I and 27% in group II; total shoulder arthroplasties (TSA) were 68 and 73% respectively...
May 12, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29752500/arthroscopic-double-bone-block-augmentation-is-a-salvage-procedure-for-anterior-and-posterior-shoulder-instability-secondary-to-glenoid-bone-loss
#13
David Haeni, Matthieu Sanchez, Plath Johannes, Lilling Victoria, Dan Henderson, Jeremy Munji, Kalojan Petkin, Laurent Lafosse
PURPOSE: The aim of this study was to describe a one-step arthroscopic anterior and posterior bone block augmentation technique for bidirectional shoulder instability and to present preliminary results. METHODS: Seven consecutive patients who underwent a concomitant anterior and posterior bone block procedure between 2007 and 2015 were retrospectively reviewed. Clinical scores, return to sport rate, and complications were assessed. Radiological outcome, with CT scan at 6 months and plain radiographs at final follow-up were reviewed...
May 11, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29752154/cementless-versus-cemented-glenoid-components-in-conventional-total-shoulder-joint-arthroplasty-analysis-from-the-australian-orthopaedic-association-national-joint-replacement-registry
#14
Richard S Page, Vishal Pai, Kevin Eng, Gregory Bain, Stephen Graves, Michelle Lorimer
BACKGROUND: Glenoid loosening is a common mode of failure after total shoulder arthroplasty (TSA). Newer cementless glenoid components have been introduced to promote biological fixation with the aim to decrease glenoid loosening. Limited data are available comparing revision rates between cemented and cementless glenoid fixation in TSA. The study aim was to compare the revision rates of cemented and cementless design glenoid components used in conventional TSA performed for the diagnosis of osteoarthritis...
May 8, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29752153/acromial-roof-in-patients-with-concentric-osteoarthritis-and-massive-rotator-cuff-tears-multiplanar-analysis-of-115-computed-tomography-scans
#15
Silvan Beeler, Anita Hasler, Jonas Getzmann, Lizzy Weigelt, Dominik C Meyer, Christian Gerber
BACKGROUND: There is evidence for differences of scapular shape between shoulders with rotator cuff tears (RCT) and osteoarthritic shoulders (OA). This study analyzed orientation and shape of the acromion in patients with massive RCT and concentric OA (COA) in a multiplanar computed tomography (CT) analysis. METHODS: CT scans of 70 shoulders with degenerative RCT and 45 shoulders with COA undergoing primary shoulder arthroplasty were analyzed. The 2 groups were compared in relation of (1) shape of the acromion, (2) its orientation in space, and (3) the anteroposterior glenoid coverage in relation to the scapular plane...
May 8, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29744735/revision-shoulder-arthroplasty-for-failed-surface-replacement-hemiarthroplasty
#16
A Jaiswal, A Malhotra, S Hay, C P Kelly
PURPOSE: The aim of this study was to assess the reasons of failure of shoulder surface replacement hemiarthroplasty (SRH) and to evaluate the outcome of revision surgery. METHOD: The study group included 25 patients (26 shoulders) with failed SRHs. The mean time to revision surgery was 3.6 years. Their functional outcome was evaluated using adjusted Constant-Murley score at mean follow-up of 5.2 years (range 2-16 years). RESULT: Most common cause of failure was glenoid erosion (42%) and progressive failure of rotator cuff (31%)...
May 9, 2018: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/29744648/the-eden-hybbinette-procedure-is-one-hundred-years-old-a-historical-view-of-the-concept-and-its-evolutions
#17
Guillaume Villatte, Sally Spurr, Cyrus Broden, Antoine Martins, Roger Emery, Peter Reilly
INTRODUCTION: One hundred years ago, before Bankart, Latarjet or Bristow, Eden and Hybbinette developed a procedure to treat anterior shoulder instability and currently, this eponymous term is known by every shoulder surgeon. The purpose of this review is to summarise the historical "Eden-Hybbinette" procedure and its evolutions during the last century and discuss results. METHOD: On the centenary of the first publication on the "Eden-Hybbinette procedure", a search was conducted on Medline, Google Scholar and in the grey literature, to find its initial concept and description, and the evolutions...
May 9, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29730139/failure-following-arthroscopic-bankart-repair-for-traumatic-anteroinferior-instability-of-the-shoulder-is-a-glenoid-labral-articular-disruption-glad-lesion-a-risk-factor-for-recurrent-instability
#18
Jonas Pogorzelski, Erik M Fritz, Marilee P Horan, J Christoph Katthagen, Matthew T Provencher, Peter J Millett
BACKGROUND: Recurrent instability is a frequent complication following arthroscopic Bankart repair. The purpose of this study was to investigate risk factors for poor patient-reported clinical outcome scores and failure rates. METHODS: Patients who underwent arthroscopic Bankart repair at least 2 years earlier were included. Preoperative and postoperative Single Assessment Numeric Evaluation; Quick Disabilities of the Arm, Shoulder and Hand; American Shoulder and Elbow Surgeons; and satisfaction scores were collected...
May 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29730136/a-simple-method-to-directly-evaluate-the-lateral-extension-of-the-acromion-an-anatomic-study-of-128-cadaveric-scapulae
#19
Trifon Totlis, Anirudh K Gowd, Eamon D Bernardoni, Brian J Cole, Nikhil N Verma, Konstantinos Natsis
BACKGROUND: The lateral extension of the acromion from the glenohumeral joint is the critical variable that both the acromial index and critical shoulder angle reflect. The purpose of this study was to establish a simple and reproducible method to directly measure the lateral extension of the acromion that will be independent of patient demographic characteristics, scapular rotation, or other morphologic features of the shoulder. METHODS: This study used 128 unpaired cadaveric scapulae with a mean age of 69...
May 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29729750/editorial-commentary-shoulder-glenoid-suture-anchor-insertion-depth-the-tip-of-an-iceberg
#20
EDITORIAL
James H Lubowitz
The term "translational research" means that the results of a bench-top analysis could quickly be applied, or translated, to the clinical setting. Nevertheless, cadaveric analysis is applicable primarily to the conditions tested. Care should be taken to consider that when it comes to investigation of shoulder glenoid suture anchor insertion, there are many variables and outcome measures to consider.
May 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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