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Journal of Shoulder and Elbow Surgery

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https://www.readbyqxmd.com/read/29033199/biomechanical-characteristics-of-subscapularis-sparing-approach-for-anatomic-total-shoulder-arthroplasty
#1
Ryan W Simovitch, Aniruddh Nayak, Jason Scalise, Robert Boudreaux, Neil Olmscheid, Kellen Worhacz, Marc Jacofsky, Tom Vanasse, Christopher Roche
BACKGROUND: A technique for retaining the superior 50% of the subscapularis insertion for anatomic total shoulder arthroplasty has been described. This cadaveric study biomechanically evaluates this subscapularis-sparing approach and compares it with a complete subscapularis release and repair technique to determine whether there is a higher load to failure. MATERIALS AND METHODS: Twelve matched pairs of human cadaveric arms were distributed into 3 test groups. Group 1 consisted of specimens with and without a 100% subscapularis release...
October 12, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29031414/the-application-of-ultrasound-elastography-in-the-shoulder
#2
REVIEW
Jonas Schmalzl, Annabel Fenwick, Dirk Boehm, Fabian Gilbert
Ultrasound elastography (EUS) is a recently developed method for the assessment of tissue elasticity by applying mechanical stress and subsequently analyzing tissue displacement with ultrasound. To date, mainly two different techniques are used in clinical practice: strain (compression) EUS and shear wave EUS. However, shear wave EUS has been shown to be more examiner independent and more reliable as this technique allows a quantitative measurement of tissue elasticity. There is increasing evidence that EUS can be used to evaluate mechanical properties of musculoskeletal tissue...
October 11, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29032989/functional-outcomes-of-distal-triceps-tendon-repair-comparing-transosseous-bone-tunnels-with-suture-anchor-constructs
#3
John G Horneff, Alexander Aleem, Thema Nicholson, Gregory Lervick, Anand Murthi, Paul Sethi, Charles Getz, Mark D Lazarus, Matthew L Ramsey, Joseph A Abboud, Robert Tashjian
BACKGROUND: Distal triceps tendon ruptures are relatively rare. Few studies have investigated functional outcomes after repair. There is no consensus on fixation methods for this injury. The purpose of this study was to compare the functional outcomes and the reoperation rates after distal triceps tendon repairs using transosseous tunnels and suture anchors. METHODS: A multicenter, retrospective review of all primary triceps repairs done between 2006 and 2015 was performed...
October 9, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29032988/clinical-and-radiographic-outcomes-after-total-shoulder-arthroplasty-with-an-anatomic-press-fit-short-stem
#4
Benjamin W Szerlip, Brent J Morris, Mitzi S Laughlin, Christopher M Kilian, T Bradley Edwards
BACKGROUND: There is limited information assessing outcomes after total shoulder arthroplasty (TSA) with a press-fit short stem. The purpose of this study was to evaluate early clinical and radiographic outcomes and complications after TSA with an anatomic press-fit short stem. METHODS: We identified 118 TSAs completed with press-fit short stem and minimum 2-year follow-up; 85 of these patients had a grit-blasted (GB) short stem placed, whereas 33 patients had short stems with proximal porous coating (PPC)...
October 9, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29032987/virtual-reconstruction-of-glenoid-bone-defects-using-a-statistical-shape-model
#5
Katrien Plessers, Peter Vanden Berghe, Christophe Van Dijck, Roel Wirix-Speetjens, Philippe Debeer, Ilse Jonkers, Jos Vander Sloten
BACKGROUND: Description of the native shape of a glenoid helps surgeons to preoperatively plan the position of a shoulder implant. A statistical shape model (SSM) can be used to virtually reconstruct a glenoid bone defect and to predict the inclination, version, and center position of the native glenoid. An SSM-based reconstruction method has already been developed for acetabular bone reconstruction. The goal of this study was to evaluate the SSM-based method for the reconstruction of glenoid bone defects and the prediction of native anatomic parameters...
October 9, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28993111/the-annular-ligament-revisited
#6
James W Barnes, Vijit L Chouhan, Nkem C Egekeze, Caroline E Rinaldi, Akin Cil
BACKGROUND: Studies investigating the annular ligament have presented confusing information about its anatomy and nomenclature. Cadaver elbow dissections were used to clarify the anatomy and terminology of the annular ligament. METHODS: Nineteen elbows were dissected (7 fresh frozen and 12 embalmed). Target structures were identified, photographed, and measured by independent observers. RESULTS: There are 3 layers to the lateral elbow ligaments: the superficial lateral ulnar collateral and radial collateral ligament; a deeper layer of the superior oblique band (SOB) and inferior oblique band (IOB) of the annular ligament; and the deepest capsular layer...
October 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28986048/open-reduction-internal-fixation-versus-intramedullary-nailing-for-humeral-shaft-fractures-an-expected-value-decision-analysis
#7
Nicholas J Zarkadis, Emmanuel D Eisenstein, Nicholas A Kusnezov, John C Dunn, James A Blair
BACKGROUND: Previous randomized controlled studies and meta-analyses have failed to collectively favor either open reduction-internal fixation (ORIF) or intramedullary nailing (IMN) fixation. The purpose of our investigation was to elucidate the optimal decision between ORIF and IMN for acute traumatic operative humeral shaft fractures through an expected value decision analysis. METHODS: We performed an expected value decision analysis and sensitivity analysis to elucidate the difference between ORIF and IMN fixation for patients with acute traumatic humeral shaft fractures...
October 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28969891/standard-versus-bony-increased-offset-reverse-shoulder-arthroplasty-a-retrospective-comparative-cohort-study
#8
Philippe Collin, Xin Liu, Patrick J Denard, Soleen Gain, Alexandra Nowak, Alexandre Lädermann
BACKGROUND: To date, only a few comparative studies with small sample sizes have compared a traditional reverse shoulder arthroplasty (tRSA) to a bony increased-offset RSA (BIO-RSA). We hypothesized that the BIO-RSA would lead to lower notching rates and improved range of motion (ROM) compared with a tRSA. METHODS: A retrospective review was performed of 69 tRSAs and 61 BIO-RSAs performed by a single surgeon. At 2 years postoperative, ROM and Constant scores were compared...
September 29, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28965688/radiographic-changes-differ-between-two-different-short-press-fit-humeral-stem-designs-in-total-shoulder-arthroplasty
#9
Patrick J Denard, Matthew P Noyes, J Brock Walker, Yousef Shishani, Reuben Gobezie, Anthony A Romeo, Evan Lederman
BACKGROUND: The purpose of this study was to compare the radiographic changes of the humerus in the short term after total shoulder arthroplasty with two different short-stem humeral components. The hypothesis was that there would be no difference in radiographic changes or functional outcome based on component type. METHODS: A retrospective review was conducted of primary total shoulder arthroplasties performed with a short press-fit humeral component. Group A included a collarless humeral stem with an oval geometry and curved stem (Ascend or Ascend Flex; Wright Medical, Memphis, TN, USA)...
September 28, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28965687/walch-b0-glenoid-pre-osteoarthritic-posterior-subluxation-of-the-humeral-head
#10
REVIEW
Peter Domos, Caio Santos Checchia, Gilles Walch
The management of primary osteoarthritis of the shoulder has been well investigated. However, the etiology and management of posterior humeral head subluxation in the context of primary glenohumeral osteoarthritis remain controversial. The finding of static posterior subluxation of the humeral head before the development of posterior bone erosion of the glenoid in young men with radiographic findings of primary osteoarthritis has been described as arthrogenic posterior subluxation of the humeral head. It demonstrates the earliest form of the osteoarthritic evolution, and an excessive glenoid retroversion is the only probable cause of this static subluxation, although this is controversial...
September 28, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28965686/factors-influencing-direct-clinical-costs-of-outpatient-arthroscopic-rotator-cuff-repair-surgery
#11
Robert Z Tashjian, Jeffrey Belisle, Sean Baran, Erin K Granger, Richard E Nelson, Robert T Burks, Patrick E Greis
BACKGROUND: Very limited information exists about factors affecting direct clinical costs of rotator cuff repair surgery. The purpose of this study was to determine the direct cost of outpatient arthroscopic rotator cuff repair surgery using a unique value-driven outcomes tool and to identify patient- and treatment-related variables affecting cost. METHODS: Cost data were derived for arthroscopic rotator cuff repairs performed by 3 surgeons from March 2014 to June 2015 using the value-driven outcomes tool...
September 28, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28964676/ulnar-neuropathy-and-medial-elbow-pain-in-women-s-fastpitch-softball-pitchers-a-report-of-6-cases
#12
Adam M Smith, Thomas H Butler, Michael S Dolan
BACKGROUND: Elite-level women's fastpitch softball players place substantial biomechanical strains on the elbow that can result in medial elbow pain and ulnar neuropathic symptoms. There is scant literature reporting the expected outcomes of the treatment of these injuries. This study examined the results of treatment in a series of these patients. METHODS: We identified 6 female softball pitchers (4 high school and 2 collegiate) with medial elbow pain and ulnar neuropathic symptoms...
September 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28964675/the-congenital-undescended-scapula-syndrome-sprengel-and-the-cleithrum-a-case-series-and-hypothesis
#13
Rishi Dhir, Kuen Chin, Simon Lambert
BACKGROUND: Sprengel deformity is a rare congenital shoulder girdle anomaly characterized by scapula malposition, periscapular muscle atrophy, and limited shoulder movement. Traditionally, it has been managed by omovertebral bar excision and muscle transplantation procedures guided by age and Cavendish grade. We present a unique observation in humans: a case series with Sprengel deformity possessing a cleithrum, an ancestral remnant of shoulder girdle development found in archaic bony fish...
September 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28964674/single-lateral-versus-medial-and-lateral-plates-for-treating-displaced-scapular-body-fractures-a-retrospective-comparative-study
#14
Rongguang Ao, Baoqing Yu, Yalong Zhu, Xinhua Jiang, Jifei Shi, Jianhua Zhou
BACKGROUND: This study compared the outcomes and complications of single lateral plating vs. dual plating for treating displaced scapular body fractures. METHODS: Open reduction and internal fixation using locking plates was performed in 45 patients with displaced scapular fractures. A single lateral plate fixed in the lateral border was used in 22 patients (group A), and dual plates fixed in both the lateral and medial borders were used in 23 (group B). RESULTS: The average follow-up duration in both groups was 20 months...
September 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28967470/involvement-of-synovial-matrix-degradation-and-angiogenesis-in-oxidative-stress-exposed-degenerative-rotator-cuff-tears-with-osteoarthritis
#15
Kyu-Cheol Noh, Sin-Hye Park, Cheol Jung Yang, Geun Woo Lee, Min Ki Kim, Young-Hee Kang
BACKGROUND: Shoulder osteoarthritis is a gradual wearing of the articular cartilage concomitant with degenerative rotator cuff tears (RCTs). This pathologic disorder is related to inflammation, oxidative stress, and angiogenesis. Degenerative alterations may prompt production of cytokines and angiogenesis-related proteins, evoking rotator cuff diseases. This study tested the hypothesis that oxidative stress-responsive mediators can influence joint inflammation of patients with RCT. METHODS: Twelve healthy RCT patients not suffering shoulder osteoarthritis were categorized as the control group, and 24 patients were allocated to 2 RCT groups (RCTP1 and RCTP2), according to severity of RCT and glenohumeral arthritis...
September 26, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28947382/the-effects-of-a-conservative-rehabilitation-program-for-multidirectional-instability-of-the-shoulder
#16
Lyn Watson, Simon Balster, Ross Lenssen, Greg Hoy, Tania Pizzari
BACKGROUND: Conservative management is commonly recommended as the first-line treatment for multidirectional instability (MDI) of the shoulder. Despite this, the evidence for efficacy of treatment is limited, and until recently, guidance for clinicians on conservative rehabilitation programs has been inadequate. This study evaluated the effectiveness of a physiotherapy-led exercise program for participants with MDI. METHODS: In a single-group study design, 43 participants (16 male, 27 female; mean age, 19...
September 22, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28943070/structural-glenoid-grafting-during-primary-reverse-total-shoulder-arthroplasty-using-humeral-head-autograft
#17
Robert Z Tashjian, Erin Granger, Peter N Chalmers
BACKGROUND: Large glenoid bone defects in the setting of glenohumeral arthritis can present a challenge to the shoulder arthroplasty surgeon. The results of large structural autografting at the time of reverse total shoulder arthroplasty (RTSA) are relatively unknown. METHODS: This retrospective case series describes the clinical and radiographic results of large structural autografting from the humeral head to the glenoid during primary RTSA. RESULTS: Of 17 patients who met inclusion criteria, 14 (82% follow-up) were evaluated postoperatively at a mean of 2...
September 22, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28943072/the-modified-latarjet-procedure-in-female-patients-clinical-outcomes-and-complications
#18
Jean-Pierre du Plessis, Robert P Dachs, Basil C Vrettos, David Maasdorp, Joseph M A Oliver, Saralee C Curtis, Stephen J L Roche
BACKGROUND: The aim of this study was to assess the short- and medium-term complications and clinical outcomes of female patients after a modified Latarjet procedure. A review of the literature was also conducted for outcomes of the modified Latarjet procedure in female patients and differences reported between male and female patients. METHOD: We retrospectively reviewed the clinical notes of all female patients who had modified Latarjet procedures from 2001 with at least 1 year of follow-up...
September 21, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28943071/classification-of-humeral-head-pathomorphology-in-primary-osteoarthritis-a-radiographic-and-in-vivo-photographic-analysis
#19
Peter Habermeyer, Petra Magosch, Christel Weiß, Nael Hawi, Sven Lichtenberg, Mark Tauber, Bastian Ipach
BACKGROUND: The purpose of this study was to characterize the pathologic changes of the osteoarthritic humeral head. METHODS: The study included 55 patients with primary osteoarthritis who underwent anatomic shoulder arthroplasty. Several radiologic parameters (radiography, magnetic resonance imaging) were assessed. Humeral head deformity in the transverse plane and humeral cartilage erosion in the coronal plane were chosen for photographic measurements from the resected humeral heads...
September 21, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28941975/proprioceptive-deficit-after-total-elbow-arthroplasty-an-observational-study
#20
Gláucio S L Siqueira, Marcus Vinicius G Amaral, Márcio Schiffer, Gunther Schlee, Thomas F Schultz-Wenk, Mauricio N de Almeida, Eduardo B Nicoliche, Victor R A Cossich, Geraldo Motta, Dylan Morrissey, José Inácio Salles
BACKGROUND: During total elbow arthroplasty (TEA), most of the joint capsule is removed, including many mechanoreceptors important for proprioception, which potentially limits the patient's postoperative functional recovery. We quantified proprioceptive loss by measuring the threshold to detection of passive motion (TTDPM) in patients after unilateral TEA compared with the contralateral side. METHODS: A continuous passive motion device moving the elbow at 0.5°/s was used to evaluate TTDPM in 8 patients (mean ± standard deviation age, 69...
September 20, 2017: Journal of Shoulder and Elbow Surgery
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