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https://www.readbyqxmd.com/read/28538289/a-three-dimensional-analysis-of-the-fracture-planes-in-pediatric-lateral-humeral-condyle-fractures-for-image-based-pin-positioning-during-fixation
#1
Do Young Park, Jae Ho Cho, Doo-Hyung Lee, Wan-Sun Choi, Jun Young Bang, Xiang Yun Yin
OBJECTIVE: To determine the 3 dimensional morphology of pediatric lateral condylar physeal fractures using 3-dimensional computed tomography (3D-CT) and to identify optimal pin positions for percutaneous pinning. DESIGN: Prospective case series of consecutively treated patients SETTING:: Tertiary university hospital setting. PATIENTS: Preoperative 3D-CTs in pediatric surgical candidates diagnosed with lateral condylar physeal fractures INTERVENTION:: Closed reduction and percutaneous pinning was performed...
May 17, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28529869/septic-arthritis-of-the-shoulder-with-proximal-humerus-osteomyelitis-treated-by-ilizarov-shoulder-arthrodesis
#2
John Kendall, Martin McNally
Septic arthritis of the shoulder can destroy the glenohumeral joint resulting in significant pain, instability and poor function. Surgical treatment is notoriously difficult with significant risk of complications. Shoulder arthrodesis has been performed using both internal and external fixation but has high complication rates in the presence of infection. We present our experience of managing a patient with significant pain and loss of function as a result of septic arthritis of the shoulder following infected proximal humeral fracture fixation with associated proximal humeral osteomyelitis...
2017: J Bone Jt Infect
https://www.readbyqxmd.com/read/28529010/aneurysmal-bone-cyst-healing-response-with-intramedullary-lengthening-nail
#3
Ahmet Emrah Acan, Onur Basci, Hasan Havitcioglu
We report the treatment process of a pediatric patient with deformity and shortening in the arm after a recurrent aggressive aneurysmal bone cyst (ABC) in the proximal humerus. The patient was treated with curettage of the lesion and lengthening on an intramedullary nail following an osteotomy just distal to the ABC. The period of lengthening was approximately 50 days. At the end of the treatment the lengthening goal was achieved without any neurovascular complication. There was a minimal loss in shoulder hyperabduction due to the deformity of the humeral head...
May 18, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28522075/retrospective-analysis-of-proximal-humeral-fracture-dislocations-managed-with-locked-plates
#4
Vivek Trikha, Vivek Singh, Buddhadeb Choudhury, Saubhik Das
BACKGROUND: Fracture-dislocation is the extreme variant of injury to the proximal humerus that occurs more commonly in young adults as a result of high-velocity trauma. We evaluated the functional and radiologic outcome of fixation of proximal humeral fracture-dislocations with locked plates. METHODS: This was a retrospective review of 33 proximal humeral fracture-dislocations in 29 patients with a mean age of 35 years (range, 19-60 years) treated by open reduction and internal fixation with locked plates between January 2009 and December 2013...
May 15, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28500457/an-alternative-technique-for-greater-tuberosity-fractures-use-of-the-mesh-plate
#5
Yelena Bogdan, Elizabeth B Gausden, Robert Zbeda, David L Helfet, Dean G Lorich, David S Wellman
INTRODUCTION: Isolated greater tuberosity (GT) fractures (AO 11-A1) tend to occur in the younger patient population and are poorly managed by most precontoured proximal humerus locking plates. The goal of this study was to identify and assess an alternative treatment strategy for greater tuberosity fractures. MATERIALS AND METHODS: A retrospective review of all cases of isolated greater tuberosity fractures treated with a 2.4/2.7 mesh plate (Synthes) between 2010 and 2015 was conducted...
May 12, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28499398/biomechanical-evaluation-of-a-novel-dualplate-fixation-method-for-proximal-humeral-fractures-without-medial-support
#6
Yu He, Yaoshen Zhang, Yan Wang, Dongsheng Zhou, Fu Wang
BACKGROUND: Comminuted fractures of the proximal humerus are generally treated with the locking plate system, and clinical results are satisfactory. However, unstable support of the medial column results in varus malunion and screw perforation. We designed a novel medial anatomical locking plate (MLP) to directly support the medial column. Theoretically, the combined application of locking plate and MLP (LPMP) would directly provide strong dual-column stability. We hypothesized that the LPMP could provide greater construct stability than the locking plate alone (LP), locking plate combined with a fibular graft (LPSG), and locking plate combined with a distal radius plate (LPDP)...
May 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28497166/biomechanical-evaluation-of-straight-antegrade-nailing-in-proximal-humeral-fractures-the-rationale-of-the-proximal-anchoring-point
#7
Simon A Euler, Maximilian Petri, Melanie B Venderley, Grant J Dornan, Werner Schmoelz, Travis Lee Turnbull, Michael Plecko, Franz S Kralinger, Peter J Millett
PURPOSE: Varus failure is one of the most common failure modes following surgical treatment of proximal humeral fractures. Straight antegrade nails (SAN) theoretically provide increased stability by anchoring to the densest zone of the proximal humerus (subchondral zone) with the end of the nail. The aim of this study was to biomechanically investigate the characteristics of this "proximal anchoring point" (PAP). We hypothesized that the PAP would improve stability compared to the same construct without the PAP...
May 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28495573/spatial-mapping-of-humeral-head-bone-density
#8
Hamidreza Alidousti, Joshua W Giles, Roger J H Emery, Jonathan Jeffers
BACKGROUND: Short-stem humeral replacements achieve fixation by anchoring to the metaphyseal trabecular bone. Fixing the implant in high-density bone can provide strong fixation and reduce the risk of loosening. However, there is a lack of data mapping the bone density distribution in the proximal humerus. The aim of the study was to investigate the bone density in proximal humerus. METHODS: Eight computed tomography scans of healthy cadaveric humeri were used to map bone density distribution in the humeral head...
May 8, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28480574/description-of-the-incidence-clinical-presentation-and-outcome-of-proximal-limb-and-pelvic-fracture-in-hong-kong-racehorses-2003-2014
#9
L McGlinchey, M J Hurley, C Riggs, S M Rosanowski
REASONS FOR PERFORMING THE STUDY: Few studies have described the incidence of proximal limb and pelvic fractures (PLPF) occurring in Thoroughbred racehorses on race-day and during training. There is limited information regarding clinical presentation and future racing career in PLPF cases. OBJECTIVES: Describe the incidence, clinical presentation and outcome of PLPF sustained by horses in racing and training at the Hong Kong Jockey Club (HKJC) between 2003 and 2014...
May 8, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28480132/osteology-of-galeamopus-pabsti-sp-nov-sauropoda-diplodocidae-with-implications-for-neurocentral-closure-timing-and-the-cervico-dorsal-transition-in-diplodocids
#10
Emanuel Tschopp, Octávio Mateus
Diplodocids are among the best known sauropod dinosaurs. Numerous specimens of currently 15 accepted species belonging to ten genera have been reported from the Late Jurassic to Early Cretaceous of North and South America, Europe, and Africa. The highest diversity is known from the Upper Jurassic Morrison Formation of the western United States: a recent review recognized 12 valid, named species, and possibly three additional, yet unnamed ones. One of these is herein described in detail and referred to the genus Galeamopus...
2017: PeerJ
https://www.readbyqxmd.com/read/28475669/stabilized-incidence-in-proximal-humeral-fractures-of-elderly-women-nationwide-statistics-from-finland-in-1970-2015
#11
Pekka Kannus, Seppo Niemi, Harri Sievänen, Jari Parkkari
Background: Low-trauma fractures of elderly women are a major public health concern. Methods: We determined the current trend in the absolute number and incidence (per 100,000 persons) of fresh low-trauma fractures of the proximal humerus among 80-year-old or older Finnish women by taking into account all women who were admitted to Finnish hospitals for primary treatment of such a fracture between 1970 and 2015. Results: The number of low-trauma fractures of the proximal humerus among 80-year-old or older Finnish women rose continuously between 1970 (32 fractures) and 2015 (568 fractures), whereas the age-adjusted fracture rate (showing a clear rise from 87 fractures per 100,000 persons in 1970 to 304 fractures in 1995) became stabilized between 1995 and 2015 (297 fractures per 100,000 persons in 2015)...
May 5, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28467336/early-results-for-treatment-of-two-and-three-part-fractures-of-the-proximal-humerus-using-contours-php-proximal-humeral-plate
#12
Alessio Biazzo, Carlo Cardile, Luca Brunelli, Paolo Ragni, Daniele Clementi
BACKGROUND AND AIM OF THE WORK: The management of displaced 2- and 3-part fractures of the proximal humerus is controversial, both in younger and in elderly patients. The purpose of this paper is to evaluate the functional results of the Contours Proximal Humerus Plate (OrthofixR, Bussolengo,Verona, Italy), for the treatment of displaced 2- and 3-part fractures of the proximal humerus. METHODS: We retrospectively reviewed 55 patients with proximal humerus fractures, who underwent osteosynthesis with Contours Proximal Humerus Plate from December 2011 to March 2015...
April 28, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28464269/the-postcranial-skeletal-maturation-of-australopithecus-sediba
#13
Noel Cameron, Barry Bogin, Debra Bolter, Lee R Berger
OBJECTIVES: In 2008, an immature hominin defined as the holotype of the new species Australopithecus sediba was discovered at the 1.9 million year old Malapa site in South Africa. The specimen (MH1) includes substantial post-cranial skeletal material, and provides a unique opportunity to assess its skeletal maturation. METHODS: Skeletal maturity indicators observed on the proximal and distal humerus, proximal ulna, distal radius, third metacarpal, ilium and ischium, proximal femur and calcaneus were used to assess the maturity of each bone in comparison to references for modern humans and for wild chimpanzees (Pan troglodytes)...
May 2, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28459709/the-humeral-implant-in-shoulder-arthroplasty
#14
Jay D Keener, Peter Nissen Chalmers, Ken Yamaguchi
Humeral hemiarthroplasty, anatomic total shoulder arthroplasty, and reverse total shoulder arthroplasty all rely on a prosthetic articular surface fixed to the proximal humerus. Humeral implant designs have changed considerably as a result of improved understanding of proximal humeral anatomy and prosthetic biomechanics. Fixed, monoblock implants have been superseded by modular implants with variable inclination, offset, version, and stem length. Press-fit designs now commonly have surface coatings that allow bony ingrowth...
June 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28458785/three-dimensional-morphometric-analysis-of-the-coracohumeral-distance-using-magnetic-resonance-imaging
#15
Taku Hatta, Nobuyuki Yamamoto, Hirotaka Sano, Yasushi Omori, Kazuomi Sugamoto, Kenji Suzuki, Eiji Itoi
There have been no studies investigating three-dimensional (3D) alteration of the coracohumeral distance (CHD) associated with shoulder motion. The aim of this study was to investigate the change of 3D-CHD with the arm in flexion/internal rotation and horizontal adduction. Six intact shoulders of four healthy volunteers were obtained for this study. MRI was taken in four arm positions: with the arm in internal rotation at 0°, 45°, and 90° of flexion, and 90° of flexion with maximum horizontal adduction...
February 20, 2017: Orthopedic Reviews
https://www.readbyqxmd.com/read/28458733/what-is-the-optimal-reconstruction-option-after-the-resection-of-proximal-humeral-tumors-a-systematic-review
#16
REVIEW
Andrew Dubina, Brian Shiu, Mohit Gilotra, S Ashfaq Hasan, Daniel Lerman, Vincent Y Ng
PURPOSE: The proximal humerus is a common location for both primary and metastatic bone tumors. There are numerous reconstruction options after surgical resection. There is no consensus on the ideal method of reconstruction. METHODS: A systematic review was performed with a focus on the surgical reconstructive options for lesions involving the proximal humerus. RESULTS: A total of 50 articles and 1227 patients were included for analysis. Reoperation rates were autograft arthrodesis (11%), megaprosthesis (10%), RSA (17%), hemiarthroplasty (26%), and osteoarticular allograft (34%)...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28455477/long-term-outcomes-of-cemented-versus-cementless-humeral-components-in-arthroplasty-of-the-shoulder-a-propensity-score-matched-analysis
#17
J-D Werthel, G Lonjon, S Jo, R Cofield, J W Sperling, B T Elhassan
AIMS: In the initial development of total shoulder arthroplasty (TSA), the humeral component was usually fixed with cement. Cementless components were subsequently introduced. The aim of this study was to compare the long-term outcome of cemented and cementless humeral components in arthroplasty of the shoulder. PATIENTS AND METHODS: All patients who underwent primary arthroplasty of the shoulder at our institution between 1970 and 2012 were included in the study...
May 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28443578/the-hyoid-bone-and-thyroid-cartilage-metastases-from-the-sigmoid-colon-adenocarcinoma-a-case-report
#18
Djurdja Bracanovic, Vesna Vukovic, Aleksa Janovic, Davorin Radosavljevic, Zoran Rakocevic
BACKGROUND: Secondary tumors of the hyoid bone and thyroid cartilage are extremely rare. In this paper, we presented a case of the hyoid bone and thyroid cartilage metastases in patient treated for the sigmoid colon adenocarcinoma. CASE REPORT: Four years after sigmoid colon adenocarcinoma was diagnosed and treated with surgery and chemotherapy, the patient developed bone metastases in left sacroiliac joint and right proximal humerus. Although patient didn't complain of any related symptom, in bone scintigraphy accumulation of Technetium-99m was incidentally detected in the two sites of the anterior neck...
April 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28442913/fracture-risk-in-patients-with-type-2-diabetes-mellitus-and-possible-risk-factors-a-systematic-review-and-meta-analysis
#19
REVIEW
Ardeshir Moayeri, Mahmoud Mohamadpour, Seyedeh Fatemeh Mousavi, Ehsan Shirzadpour, Safoura Mohamadpour, Mansour Amraei
AIM: Patients with type 2 diabetes mellitus (T2DM) have an increased risk of bone fractures. A variable increase in fracture risk has been reported depending on skeletal site, diabetes duration, study design, insulin use, and so on. The present meta-analysis aimed to investigate the association between T2DM with fracture risk and possible risk factors. METHODS: Different databases including PubMed, Institute for Scientific Information, and Scopus were searched up to May 2016...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28435562/avulsion-fracture-of-brachioradialis-muscle-origin-an-exceedingly-rare-entity-a-case-report
#20
G Behera, G Balaji, J Menon, D Sharma, V K Komuravalli
Avulsion fracture of the brachioradialis origin at its proximal attachment on the lateral supracondylar ridge of the distal humerus is exceedingly rare, and only two cases have been reported in the literature so far. In this article, we present a 38 years old patient who sustained a closed avulsion fracture of the lateral supracondylar ridge of left humerus at the proximal attachment of brachioradialis following a fall backwards on outstretched hand after being struck by a lorry from behind while riding on a two-wheeler (motorcycle)...
July 2016: Malaysian Orthopaedic Journal
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