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https://www.readbyqxmd.com/read/29152005/humeral-head-replacement-and-reverse-shoulder-arthroplasty-for-the-treatment-of-proximal-humerus-fracturesm
#1
REVIEW
Aaron Andrew Frombach, Kendra Brett, Peter Lapner
Acute proximal humeral fractures in the elderly are generally treated non-operatively if alignment is acceptable and in stable fracture patterns. When operative treatment is indicated, surgical fixation is often difficult or impossible to obtain. Hemiarthroplasty has long been the standard of care. However, with its reliance on tuberosity healing, functional outcomes and patient satisfaction are often poor. Reverse shoulder arthroplasty has emerged as a new technology for treating proximal humeral fractures but the indications for its use remain uncertain...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29150186/articular-scaling-and-body-mass-estimation-in-platyrrhines-and-catarrhines-modern-variation-and-application-to-fossil-anthropoids
#2
Jonathan M G Perry, Siobhán B Cooke, Jacqueline A Runestad Connour, M Loring Burgess, Christopher B Ruff
Body mass is an important component of any paleobiological reconstruction. Reliable skeletal dimensions for making estimates are desirable but extant primate reference samples with known body masses are rare. We estimated body mass in a sample of extinct platyrrhines and Fayum anthropoids based on four measurements of the articular surfaces of the humerus and femur. Estimates were based on a large extant reference sample of wild-collected individuals with associated body masses, including previously published and new data from extant platyrrhines, cercopithecoids, and hominoids...
November 14, 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/29145279/osteosarcoma-in-the-coracoid-process-that-mimicked-an-osteochondroma-a-case-report
#3
Zhiping Luo, Conglin Ye, Hong-Xun Sang
RATIONALE: Osteosarcomas are the most common primary malignant bone tumors in children and young adults; these tumors often affect the metaphyses of long bones such as the proximal humerus, proximal tibia, and distal femur. In contrast, osteosarcoma of the coracoid process is extremely rare. PATIENT CONCERNS: Herein, we describe a case of osteosarcoma affecting the coracoid process in a 40-year-old woman. The patient presented with shoulder pain, weakness, and an inability to raise her left arm...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29138871/revision-shoulder-arthroplasty-with-a%C3%A2-reverse-shoulder-prosthesis-use-of-structural-allograft-for-glenoid-bone-loss
#4
S E Ozgur, R Sadeghpour, T R Norris
INTRODUCTION: Revision shoulder arthroplasty presents many unique and complex challenges when glenoid bone loss is involved. A distorted and medialized anatomy prevents the proper mechanics of the reverse prosthesis with regard to deltoid tension and ultimate function. This paper highlights one surgeon's experience using structural allograft for glenoid bone loss. PATIENTS AND METHODS: In all, 20 patients for a total of 24 surgeries with a medialized glenoid and/or substantial glenoid bone loss of grade IIB or higher were evaluated in this retrospective study...
November 14, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29135565/pediatric-and-adolescent-anterior-shoulder-instability-clinical-management-of-first-time-dislocators
#5
Kenneth M Lin, Evan W James, Elad Spitzer, Peter D Fabricant
PURPOSE OF REVIEW: The purpose of this review is to discuss the epidemiology, pathoanatomy, diagnosis, and clinical management of pediatric and adolescent patients following a first-time shoulder dislocation. RECENT FINDINGS: Shoulder instability is becoming increasingly common as pediatric and adolescent patients engage in earlier organized sports competition. Recommended treatment following a first-time glenohumeral dislocation event in adolescents depends on several factors, but surgical stabilization is becoming more frequently performed...
November 11, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/29128375/is-the-pectoralis-major-tendon-a-reliable-reference-for-restoration-of-humeral-length-with-fracture-hemiarthroplasty
#6
Beom-Soo Kim, Du-Han Kim, Kwang-Soon Song, Byung-Woo Min, Ki-Cheor Bae, Chul-Hyun Cho
BACKGROUND: The primary objective was to calculate and to apply the numeric value of the distance from the pectoralis major tendon insertion to the superior aspect of the humeral head (PMTD) without any radiation exposure or equipment through basic data such as age, sex, height, and weight of Asian populations. METHODS: We analyzed shoulder magnetic resonance images of 260 patients (107 men and 153 women; average age, 59.8 years). The superior border of the pectoralis major was identified on the transverse section and cross-referenced with the coronal section...
November 8, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29123414/low-grade-central-osteosarcoma-in-proximal-humerus-a-rare-entity
#7
Fan Tang, Li Min, Yong Zhou, Yi Luo, Chongqi Tu
Low-grade central osteosarcoma is a rare subtype of tumor with low-grade malignancy. Currently, wide resection with negative resection margin is the standard treatment for this disease. The role of neoadjuvant chemotherapy in low-grade central osteosarcoma was controversial and was mostly considered for tumors containing high-grade focal areas. Local tumor recurrences often exhibited a tumor with higher histologic grade or differentiation with the potential for metastases. In low-grade central osteosarcoma, timely wide resection after definite diagnosis can result in 5-year survival for almost 90%...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29122116/mipo-of-proximal-humerus-fractures-through-an-anterolateral-acromial-approach-is-the-axillary-nerve-at-risk
#8
Josip Knežević, Mario Mihalj, Fabijan Čukelj, Arsen Ivanišević
PURPOSE: It is known that shoulder surgery may cause iatrogenic injury to the axillary nerve as a serious complication, but there is little evidence to indicate whether the axillary nerve is at risk of injury during an anterolateral acromial approach for minimally-invasive plate osteosynthesis (MIPO) of proximal humerus fractures. We hypothesised that this surgical method is safe for the axillary nerve and would preserve it from iatrogenic injury. MATERIALS AND METHODS: We conducted a prospective follow-up cohort study on 49 consecutive patients with proximal humerus fractures who were managed with MIPO through an anterolateral approach...
November 2017: Injury
https://www.readbyqxmd.com/read/29118644/morphology-of-the-limbs-in-the-semi-fossorial-desert-rodent-species-of-tympanoctomys-octodontidae-rodentia
#9
M Julieta Perez, Ruben M Barquez, M Monica Diaz
Here, a detailed description of the forelimbs and hindlimbs of all living species of the genus Tympanoctomys are presented. These rodents, highly adapted to desert environments, are semi-fossorial with capacity to move on the surface as well as to build burrows. The shape, structure, and size of the limbs are described. Contrary to what was expected for scratch digging semi-fossorial species, Tympanoctomys have slender humerus, radius and ulna; with narrow epicondyles of the humerus and short olecranon of the ulna with poorly developed processes...
2017: ZooKeys
https://www.readbyqxmd.com/read/29117827/tuberculosis-of-the-elbow-region-in-pediatric-age-group-experiences-from-a-single-centre
#10
Anil Agarwal, Anuj Rastogi
BACKGROUND: Clinical series of tuberculosis of elbow region in children are few. The purpose of our study was to retrospectively review the presentation, healing response and functional results of 30 children. METHODS: The pretreatment disease presentation was studied from patient's case records. Serial radiographs of the patients were studied to see remineralization and healing of radiological lesions. For elbow's functional evaluation, pain, range of motion and recurrence were observed at final follow up...
December 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29116358/humeral-head-inferior-subluxation-in-proximal-humerus-fractures
#11
Stefano Carbone, Matteo Papalia, Valerio Arceri, Stefano Placidi, Andrea Carbone, Riccardo Mezzoprete
PURPOSE: The objectives of this study are to propose a reliable radiologic method for detecting static inferior subluxation of humeral head, to calculate the relative intra- and inter-observer reliability, and to evaluate its presence pre- and post-surgery. METHODS: This is a retrospective observational study of patients surgically treated for a fracture of the proximal humerus. Fractures were classified using Codman-Lego criteria (radiographic, CT images), osteoporosis was assessed...
November 7, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29103059/fatty-degeneration-of-the-deltoid-muscle-associated-with-displaced-proximal-humerus-fractures
#12
M Panzica, J Brandes, U Schmiddem, A Karch, N Hawi, C Krettek, R Meller
INTRODUCTION: The use of reverse shoulder arthroplasty (RSA) has increased dramatically over the last two decades, with many surgeons now indicating RSA for the acute management of displaced proximal humerus fractures (PHF) in the elderly. RSA relies on adequate deltoid muscle function to obtain a good outcome, yet no literature to date exists which discusses preoperative assessment of deltoid structure prior to RSA. The purpose of this study was to assess for preoperative fatty deltoid-degeneration in patients with displaced PHF...
October 23, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29102769/a-scale-space-curvature-matching-algorithm-for-the-reconstruction-of-complex-proximal-humeral-fractures
#13
Lazaros Vlachopoulos, Gábor Székely, Christian Gerber, Philipp Fürnstahl
The optimal surgical treatment of complex fractures of the proximal humerus is controversial. It is proven that best results are obtained if an anatomical reduction of the fragments is achieved and, therefore, computer-assisted methods have been proposed for the reconstruction of the fractures. However, complex fractures of the proximal humerus are commonly accompanied with a relevant displacement of the fragments and, therefore, algorithms relying on the initial position of the fragments might fail. The state-of-the-art algorithm for complex fractures of the proximal humerus requires the acquisition of a CT scan of the (healthy) contralateral anatomy as a reconstruction template to address the displacement of the fragments...
October 27, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/29098354/-total-elbow-arthroplasty-in-traumatic-and-post-traumatic-bone-defects
#14
REVIEW
M Hackl, L P Müller, T Leschinger, K Wegmann
Total elbow arthroplasty is currently most commonly carried out due to acute trauma or post-traumatic conditions. Bone defects are often present and must be considered in the (pre-)operative workup. The use of semi-constrained prostheses with a systematic cementing technique through a triceps-on approach leads to satisfying clinical results, however, the outcome is worse when compared with rheumatic patients.Primary total elbow arthroplasty for complex distal humerus fractures in the elderly patient or secondary implantation following failed conservative treatment or osteosynthesis represent possible indications for (post‑)traumatic joint replacement...
November 2, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29094010/restoration-of-the-joint-geometry-and-outcome-after-stemless-tess-shoulder-arthroplasty
#15
Lars V von Engelhardt, Michael Manzke, Andreas Breil-Wirth, Timm J Filler, Joerg Jerosch
AIM: To evaluate the joint geometry and the clinical outcome of stemless, anatomical shoulder arthroplasty with the TESS system. METHODS: Twenty-one shoulders with a mean follow-up 18 of months were included. On scaled digital radiographs the premorbid center of rotation (CoR) was assessed and compared to the CoR of the prosthesis by using the MediCAD(®) software. Additionally, the pre- and post-operative geometry of the CoR was assessed in relation to the glenoid, the acromion as well as to the proximal humerus...
October 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29073240/the-course-of-the-radial-nerve-in-the-distal-humerus-a-novel-anatomy-based-radiographic-assessment
#16
H P Theeuwes, B van der Ende, J W Potters, A J Kerver, J H J M Bessems, G-J Kleinrensink
METHODS AND FINDINGS: Measurements were done on both arms of ten specially embalmed specimens. Arms were dissected and radiopaque wires attached to the radial nerve in the distal part of the upper arm. Digital radiographs were obtained to determine the course of the radial nerve in the distal 20 cm of the humerus in relation to bony landmarks; medial epicondyle and capitellum-trochlea projection (CCT). Analysis was done with ImageJ and Microsoft Excel software. We also compared humeral nail specifications from different companies with the course of the radial nerve to predict possible radial nerve damage...
2017: PloS One
https://www.readbyqxmd.com/read/29068573/en-bloc-resection-and-prosthesis-implantation-to-treat-malignant-fibrous-histiocytoma-of-the-humerus
#17
Jun Sun, Ru-Ming Zhang, Yu-Xin Zheng
BACKGROUND: Malignant fibrous histiocytoma (MFH) of the bone is a rare tumor. Most studies comparing limb salvage and amputation have reported that limb salvage had no adverse effect on the long-term survival of patients. This study evaluates the oncological outcomes of limb salvage procedures that were used for 15 patients with MFH of the humerus. OBJECTIVES: The aim of this study was to assess the functional and oncological outcomes of patients with malignant fibrous histiocytoma of the humerus after en bloc resection and prosthesis implantation...
August 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29066532/impact-of-the-profher-trial-findings-on-surgeons-clinical-practice-an-online-questionnaire-survey
#18
L Jefferson, S Brealey, H Handoll, A Keding, L Kottam, I Sbizzera, A Rangan
OBJECTIVES: To explore whether orthopaedic surgeons have adopted the Proximal Fracture of the Humerus: Evaluation by Randomisation (PROFHER) trial results routinely into clinical practice. METHODS: A questionnaire was piloted with six orthopaedic surgeons using a 'think aloud' process. The final questionnaire contained 29 items and was distributed online to surgeon members of the British Orthopaedic Association and British Elbow and Shoulder Society. Descriptive statistics summarised the sample characteristics and fracture treatment of respondents overall, and grouped them by whether they changed practice based on PROFHER trial findings...
October 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/29061875/dimple-on-the-shoulder-after-a-ski-injury
#19
Morteza Khodaee, Armando Vidal, Greg Gutierrez
CLINICAL INTRODUCTION: A 74-year-old woman was brought to the ski clinic shortly after a fall on her left shoulder while skiing. She did not remember the exact fall mechanism. She felt a popping sensation in her left shoulder and was unable to move her left arm due to severe pain. Her medical and social histories were unremarkable. On physical examination, she had a deformity in her left shoulder (figure 1). Her neurovascular examination was intact.emermed;34/11/740/F1F1F1Figure 1Photograph of the left shoulder on arrival showing an anterior 'dimple'...
November 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29054991/the-influence-of-bone-mineral-density-and-cortical-index-on-the-complexity-of-fractures-of-the-proximal-humerus
#20
J W A M den Teuling, B S Pauwels, L Janssen, C E Wyers, H M J Janzing, J P W van den Bergh, J W Morrenhof
OBJECTIVES: The goal of this study is to investigate the relation between indicators of osteoporosis (i.e., bone mineral density (BMD), and Cortical Index (CI)) and the complexity of a fracture of the proximal humerus as a result of a low-energy trauma. METHODS: A retrospective chart review of 168 patients (mean age 67.2 years, range 51 to 88.7) with a fracture of the proximal humerus between 2007 and 2011, whose BMD was assessed at the Fracture Liaison Service with Dual Energy X-ray Absorptiometry (DXA) measurements of the hip, femoral neck (FN) and/or lumbar spine (LS), and whose CI and complexity of fracture were assessed on plain anteroposterior radiographs of the proximal humerus...
October 2017: Bone & Joint Research
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