Read by QxMD icon Read


A Neubert, Z Yang, C Engstrom, Y Xia, M W Strudwick, S S Chandra, J Fripp, S Crozier
PURPOSE: Magnetic resonance (MR) imaging plays a key role in investigating early degenerative disorders and traumatic injuries of the glenohumeral cartilages. Subtle morphometric and biochemical changes of potential relevance to clinical diagnosis, treatment planning, and evaluation can be assessed from measurements derived from in vivo MR segmentation of the cartilages. However, segmentation of the glenohumeral cartilages, using approaches spanning manual to automated methods, is technically challenging, due to their thin, curved structure and overlapping intensities of surrounding tissues...
October 2016: Medical Physics
P Metais, P Clavert, J Barth, P Boileau, R Broszka, G Nourissat, J Leuzinger, G Walch, L Lafosse
BACKGROUND: The Latarjet-Patte procedure consisting in transfer and screw fixation of the coracoid process to the anterior glenoid is a treatment of reference for anterior shoulder instability. Over time, surgical innovations translated into a number of improvements and, in late 2003, an arthroscopically assisted variant of the procedure was described. OBJECTIVE: To evaluate and compare clinical outcomes of the modified Latarjet-Patte procedure performed by open surgery, arthroscopy with screw fixation, or arthroscopy with endobutton fixation...
October 19, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
Ryan P Mulligan, Frederick M Azar, Thomas W Throckmorton
BACKGROUND: Glenoid component positioning in revision shoulder arthroplasty is difficult because of distorted anatomic landmarks and scarring in and around the glenoid vault. This study compared glenoid component version in revision total shoulder arthroplasty (TSA) and reverse TSA (RTSA) using traditional instrumentation vs. a generic glenoid targeting guide. METHODS: Radiographs of 50 shoulders undergoing revision arthroplasty were reviewed by an independent reviewer...
October 17, 2016: Journal of Shoulder and Elbow Surgery
Jeremiah T Lowe, Edward J Testa, Xinning Li, Suzanne Miller, Joseph P DeAngelis, Andrew Jawa
BACKGROUND: Computed tomography (CT) scan is the standard for the preoperative assessment of glenoid version and morphology before total shoulder arthroplasty. However, the capacity of magnetic resonance imaging (MRI) to visualize bone morphology has improved with advancing technology. The purpose of this study was to compare the accuracy of MRI to CT for assessment of glenoid version and Walch classification. METHODS: Three fellowship-trained shoulder surgeons assessed glenoid version and Walch classification of 30 patients with primary shoulder osteoarthritis who received both CT and MRI scans before total shoulder arthroplasty...
October 17, 2016: Journal of Shoulder and Elbow Surgery
Arvind Mengi, Vijay P Sharma, Pradeep Tandon, Akhil Agarwal, Abhishek Singh
AIM: The purpose of this study was to assess the effect of glenoid fossa location in various skeletal malocclusions on craniofacial morphology. METHODS: Cephalometric data of 84 subjects were analyzed for four linear and two angular variables for assessing glenoid fossa location in cranial base and eight linear and eight angular variables for evaluating the corresponding effect on craniofacial morphology using statistical software STATA 12 for windows. Regression analysis was done to see the effect of glenoid fossa location on the parameters measuring craniofacial morphology...
September 2016: Journal of Oral Biology and Craniofacial Research
William R Aibinder, Bradley Schoch, Cathy Schleck, John W Sperling, Robert H Cofield
BACKGROUND: Glenoid component loosening is a common indication for revision shoulder arthroplasty. The objective of this study is to assess the longer-term outcomes of patients undergoing revision specifically for aseptic loosening. MATERIALS AND METHODS: Between 1985 and 2005, 34 revision shoulder arthroplasties were performed for aseptic glenoid loosening. Three patients were lost to follow-up. Treatment included component reimplantation in 20 shoulders (group I) or component removal with bone grafting in 11 shoulders (group II)...
October 10, 2016: Journal of Shoulder and Elbow Surgery
Tressa D Amirthanayagam, Andrew A Amis, Peter Reilly, Roger J H Emery
BACKGROUND: The deltopectoral approach for total shoulder arthroplasty can result in subscapularis dysfunction. In addition, glenoid wear is more prevalent posteriorly, a region difficult to access with this approach. We propose a posterior approach for access in total shoulder arthroplasty that uses the internervous interval between the infraspinatus and teres minor. This study compares this internervous posterior approach with other rotator cuff-sparing techniques, namely, the subscapularis-splitting and rotator interval approaches...
October 10, 2016: Journal of Shoulder and Elbow Surgery
Carlos Torrens, Pau Guirro, Joan Miquel, Fernando Santana
HYPOTHESIS: The objective of the study was to evaluate the development of scapular notching in reverse shoulder arthroplasty by comparing larger glenospheres (42 mm) with smaller glenospheres (38 mm). METHODS: This was a prospective randomized study of 81 patients who had undergone reverse shoulder arthroplasty with a 2-year follow-up. Patients were randomized to receive either a 42-mm glenosphere (38 patients) or a 38-mm glenosphere (43 patients). Scapular notching development was assessed with an anteroposterior radiograph at the end of the follow-up...
November 2016: Journal of Shoulder and Elbow Surgery
Xinning Li, Antonio Cusano, Josef Eichinger
Shoulder dislocations are a common injury, with anterior shoulder dislocation among male patients being the most common presentation. A patient with recurrent shoulder instability, anterior-superior escape, and chronic subscapularis tendon rupture following multiple shoulder stabilization surgeries presents the surgeon with a complex and challenging case. This report describes a 40-year-old man with an extensive left shoulder history that included a failed Latarjet procedure, an irreparable, chronic subscapularis tear with grade 4 Goutallier fatty infiltration, and associated anterior-superior escape...
October 13, 2016: Orthopedics
Rachel M Frank, Anthony A Romeo, Matthew T Provencher
Anterior glenoid bone loss is present in nearly all cases of recurrent anterior glenohumeral instability. Treating glenoid bone loss in the setting of recurrent instability is challenging, and often, soft tissue stabilization procedures in isolation are inadequate. The nonanatomic, incongruous joint resulting from most bony augmentation procedures has motivated investigators to find an alternative solution. Recently, the use of fresh distal tibia allograft has been reported as an anatomic, osteoarticular reconstructive option for restoring the glenoid arc and maintaining glenohumeral congruency...
October 13, 2016: Orthopedics
Mohamed Mansour Elzohairy, Adel Mohamed Salama
INTRODUCTION: The purpose of this study was to evaluate shoulder function following minimally invasive subtotal subscapularis muscle and periarticular capsuloligamentous arthroscopic release in children with Erb's palsy. METHODS: A prospective study was conducted on 15 consecutive children who underwent subtotal subscapularis muscle and periarticular capsuloligamentous arthroscopic release to treat internal rotation contracture of the shoulder joint after Erb's palsy...
October 12, 2016: Journal of Children's Orthopaedics
Alexandre Hardy, Philippe Loriaut, Benjamin Granger, Ahmed Neffati, Audrey Massein, Laurent Casabianca, Hugues Pascal-Moussellard, Antoine Gerometta
PURPOSE: The arthroscopic Latarjet procedure has provided reliable results in the treatment of anterior shoulder instability. However, this procedure remains technically challenging and is related to several complications. The morphology of the coracoid and the glenoid are inconsistent. Inadequate coracoid and glenoid preparing may lead to mismatching between their surfaces. Inadequate screws lengthening and orientation are a major concern. Too long screws can lead to suprascapular nerve injuries or hardware irritation, whereas too short screws can lead to nonunions, fibrous unions or migration of the bone block...
October 12, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
L Ernstbrunner, J-D Werthel, T Hatta, A R Thoreson, H Resch, K-N An, P Moroder
OBJECTIVES: The bony shoulder stability ratio (BSSR) allows for quantification of the bony stabilisers in vivo. We aimed to biomechanically validate the BSSR, determine whether joint incongruence affects the stability ratio (SR) of a shoulder model, and determine the correct parameters (glenoid concavity versus humeral head radius) for calculation of the BSSR in vivo. METHODS: Four polyethylene balls (radii: 19.1 mm to 38.1 mm) were used to mould four fitting sockets in four different depths (3...
October 2016: Bone & Joint Research
Jae-Young Kim, Bum-Joon Kim, Kwang-Ho Park, Jong-Ki Huh
OBJECTIVE: To evaluate the volume and position of the temporomandibular joint structures, specifically the glenoid fossa and the condylar head, in patients with facial asymmetry. STUDY DESIGN: Fifty-six adult patients were divided into two groups-asymmetry group and control group-based on the severity of the mandibular asymmetry, as seen on their orthopantomograms. The volumes and positions of the bilateral temporomandibular joint components were measured by using computed tomography images and a three-dimensional analysis program...
August 31, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Matthias Bülhoff, Jörn Reinders, Felix Zeifang, Patric Raiss, Ulrike Müller, J Philippe Kretzer
BACKGROUND: Shoulder hemiarthroplasty is a viable treatment for shoulder arthritis, particularly if the natural glenoid is still intact. One of the most common reasons for revision surgery is glenoid erosion, where the cartilage or bone is worn. The aim of the current study was to analyze whether the metallic articular surface of retrieved shoulder hemiarthroplasty is different from new implants. We hypothesized that the surface roughness would increase as a result of the articulation and that metallic wear would be detectable on the implants...
October 7, 2016: Journal of Shoulder and Elbow Surgery
Bauke W Kooistra, W Jaap Willems, Eelke Lemmens, Bas P Hartel, Michel P J van den Bekerom, Derek F P van Deurzen
BACKGROUND: Compared with total shoulder arthroplasty (TSA), total shoulder surface replacement (TSSR) may offer the advantage of preservation of bone stock and shorter surgical time, possibly at the expense of glenoid component positioning and increasing lateral glenohumeral offset. We hypothesized that in patients treated for osteoarthritis with a sufficient rotator cuff, TSA and TSSR patients have comparable functional outcome, glenoid component version, and lateral glenohumeral offset...
October 7, 2016: Journal of Shoulder and Elbow Surgery
Julien Clément, Jérémie Ménard, Maxime Raison, Jennifer Dumais, Laura Dubois, Dominique M Rouleau
BACKGROUND: Although recurrent anterior shoulder instability (RASI) is a common condition in young patients, no studies to date have measured the 3-dimensional (3D) locked position of the glenohumeral joint during an anterior dislocation. Therefore, our goal was to estimate it with 3D computed tomography (CT) scans. METHODS: Patients in this prospective observational study were separated in 3 groups: normal laxity, hyperlaxity, and epilepsy. They were characterized by questionnaires (Western Ontario Shoulder Instability Index, 11-item version of the Disabilities of the Arm, Shoulder and Hand, and Beighton Laxity Score), and a CT scan revealing bipolar bone defects...
October 7, 2016: Journal of Shoulder and Elbow Surgery
Tineke De Coninck, Steven S Ngai, Monica Tafur, Christine B Chung
The shoulder joint is the most unstable articulation in the entire human body. While this certainly introduces vulnerability to injury, it also confers the advantage of broad range of motion. There are many elements that work in combination to offset the inherent instability of the glenohumeral joint, but the glenoid labrum is perhaps related most often. Broadly, clinical unidirectional instability can be subdivided into anterior and posterior instability, which usually raise concern for anteroinferior and posteroinferior labral lesions, respectively...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Nael Hawi, Petra Magosch, Mark Tauber, Sven Lichtenberg, Frank Martetschläger, Peter Habermeyer
BACKGROUND: A variety of measurements can be used to assess radiographic osteoarthritic changes of the shoulder. This study aimed to analyze the correlation between the radiographic humeral-sided Samilson and Prieto classification system and 3 different radiographic classifications describing the changes of the glenoid in the coronal plane. METHODS: The study material included standardized radiographs of 50 patients with idiopathic osteoarthritis before anatomic shoulder replacement...
October 6, 2016: Journal of Shoulder and Elbow Surgery
P Gendre, C-E Thélu, T d'Ollonne, C Trojani, J-F Gonzalez, P Boileau
BACKGROUND: The purpose of this study was to evaluate suture button fixation in a bone block (Bristow and Latarjet) procedure. We hypothesize that (1) cortical button fixation will allow predictable and reproducible bone union and (2) minimize the complications reported with screw fixation. MATERIALS AND METHODS: Seventy patients (mean age, 27 years) underwent an arthroscopic bone block procedure with a guided surgical approach and suture button fixation for recurrent anterior shoulder instability...
October 5, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"