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https://www.readbyqxmd.com/read/28630834/van-neck-odelberg-disease-a-rare-case-report
#1
Amit Prakash Chaudhari, Gautam Shah, Sameer Sanjeev Patil, Aashish Babanrao Ghodke, Sagar B Kelkar
INTRODUCTION: Pain in groin without any history of trauma or positive clinical findings of infection or stress fracture in ischiopubic ramus poses challenges in diagnosis of the condition in prepubertal age. "Osteochondrosis of ischiopubic synchondrosis (IPS)" also called as "Van Neck-Odelberg" disease. Left leg dominant patient presented with pain in groin and limping with left leg dominance. Differential diagnosis - such as stress fractures, osteomyelitis, tuberculosis, post-traumatic osteolysis, or any neoplasia - is need be ruled out to arrive at diagnosis...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28584675/musculoskeletal-neck-pain-in-children-and-adolescents-risk-factors-and-complications
#2
Jawad Fares, Mohamad Y Fares, Youssef Fares
BACKGROUND: Neck pain is a major public health concern that has been extensively studied in adults but not in children and adolescents. Therefore, the purpose of this article is to explore musculoskeletal neck pain in children and adolescents, as well as to discuss its possible risk factors and complications. METHODS: Participants were patients under 18 years of age, who had presented to the clinic (Beirut, Lebanon) in 2015, with nonspecific neck pain. They were examined and asked to evaluate and localize the pain...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28499398/biomechanical-evaluation-of-a-novel-dualplate-fixation-method-for-proximal-humeral-fractures-without-medial-support
#3
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/28473086/acr-appropriateness-criteria-%C3%A2-stress-fatigue-insufficiency-fracture-including-sacrum-%C3%A2-excluding-other-vertebrae
#4
Jenny T Bencardino, Taylor J Stone, Catherine C Roberts, Marc Appel, Steven J Baccei, R Carter Cassidy, Eric Y Chang, Michael G Fox, Bennett S Greenspan, Soterios Gyftopoulos, Mary G Hochman, Jon A Jacobson, Douglas N Mintz, Gary W Mlady, Joel S Newman, Zehava S Rosenberg, Nehal A Shah, Kirstin M Small, Barbara N Weissman
Stress fractures, including both fatigue and insufficiency types, are frequently encountered in clinical practice as a source of pain in both athletes and patients with predisposing conditions. Radiography is the imaging modality of choice for baseline diagnosis. MRI has greatly improved our ability to diagnose radiographically occult stress fractures. Tc-99m bone scan and CT may also be useful as diagnostic tools. Although fatigue and insufficiency fractures can be self-limited and go onto healing even without diagnosis, there is usually value in initiating prompt therapeutic measures as incomplete stress fractures have the potential of progressing to completion and requiring more invasive treatment or delay in return to activity...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28464946/evaluating-the-biomechanical-effects-of-implant-diameter-in-case-of-facial-trauma-to-an-edentulous-atrophic-mandible-a-3d-finite-element-analysis
#5
Aysa Ayali, Kani Bilginaylar
BACKGROUND: Rehabilitation using an implant supported overdenture with two implants inserted in the interforaminal region is the easiest and currently accepted treatment modality to increase prosthetic stabilization and patient satisfaction in edentulous patients. The insertion of implants to the weakend mandibular bone decreases the strength of the bone and may lead to fractures either during or after implant placement. The aim of this three dimensional finite element analysis (3D FEA) study was to evaluate the biomechanical effects of implant diameter in case of facial trauma (2000 N) to an edentulous atrophic mandible with two implant supported overdenture...
May 2, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28443571/numerical-optimization-of-the-position-in-femoral-head-of-proximal-locking-screws-of-proximal-femoral-nail-system-biomechanical-study
#6
Mehmet Nuri Konya, Özgür Verim
BACKGROUND: Proximal femoral fracture rates are increasing due to osteoporosis and traffic accident. Proximal femoral nails are routinely used in the treatment of these fractures on the proximal femur. AIMS: The present study aimed to compare various combination and to determine ideal proximal lag screw (PLS) position on the pertrochanteric fractures (AO classification 31-A1) of femur by using optimised finite element analysis. STUDY DESIGN: Biomechanical Study...
April 6, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28406558/mechanical-constraints-on-the-hominin-pelvis-and-the-obstetrical-dilemma
#7
Christopher Ruff
The "obstetrical dilemma" posits that increases in birth canal dimensions during hominin evolution were constrained by mechanical factors associated with bipedal gait. This model has recently been challenged, in part on the basis of experimental data showing little association between pelvic and proximal femoral dimensions and locomotor costs among human experimental subjects. However, complete rejection of the model is premature, for two reasons: (1) it is difficult to extrapolate experimental results to naturalistic conditions and the much more varied body form and possibly locomotor style of early hominins...
May 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28397164/comparison-of-effects-of-different-screw-materials-in-the-triangle-fixation-of-femoral-neck-fractures
#8
Kadir Gok, Sermet Inal, Arif Gok, Eyyup Gulbandilar
In this study, biomechanical behaviors of three different screw materials (stainless steel, titanium and cobalt-chromium) have analyzed to fix with triangle fixation under axial loading in femoral neck fracture and which material is best has been investigated. Point cloud obtained after scanning the human femoral model with the three dimensional (3D) scanner and this point cloud has been converted to 3D femoral model by Geomagic Studio software. Femoral neck fracture was modeled by SolidWorks software for only triangle configuration and computer-aided numerical analyses of three different materials have been carried out by AnsysWorkbench finite element analysis (FEA) software...
May 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28392717/effects-of-water-based-exercise-on-bone-health-of-middle-aged-and-older-adults-a-systematic-review-and-meta-analysis
#9
REVIEW
Vini Simas, Wayne Hing, Rodney Pope, Mike Climstein
BACKGROUND: Age-related bone loss is a major health concern. Only exercises associated with high-impact and mechanical loading have been linked to a positive effect on bone turnover; however, these types of exercises may not always be appropriate for middle-aged and older adults due to physical decline or chronic disorders such as osteoarthritis. Water-based exercise (WBE) has been shown to affect different components of physical fitness, has lower risks of traumatic fracture, and applies less stress to joints...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28366494/intertrochanteric-fracture-association-between-the-coronal-position-of-the-lag-screw-and-stress-distribution
#10
Changxiang Liang, Ruiping Peng, Nan Jiang, Guoping Xie, Lei Wang, Bin Yu
BACKGROUND/PURPOSE: The best position of the lag screw in the femoral head for the fixation of intertrochanteric fracture is controversial. Traditional view suggests that it should be positioned in the central axis of the femoral neck with a tip-apex distance (TAD) of <25 mm, but the mechanical properties have not been reported yet. Herein, we aimed to investigate internal fixation with the lag screw placed in different positions on the femoral coronal plane by performing a finite element analysis and to identify a reasonable lag screw position after the internal stress distributions at the femoral head...
March 30, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/28361017/lower-limb-stress-fractures-in-sport-optimising-their-management-and-outcome
#11
REVIEW
Greg A J Robertson, Alexander M Wood
Stress fractures in sport are becoming increasing more common, comprising up to 10% of all of sporting injuries. Around 90% of such injuries are located in the lower limb. This articles aims to define the optimal management of lower limb stress fractures in the athlete, with a view to maximise return rates and minimise return times to sport. Treatment planning of this condition is specific to the location of the injury. However, there remains a clear division of stress fractures by "high" and "low" risk. "Low risk" stress fractures are those with a low probability of fracture propagation, delayed union, or non-union, and so can be managed reliably with rest and exercise limitation...
March 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28316966/bilateral-femoral-neck-stress-fracture-presented-with-unilateral-symptoms-in-a-shipman-laborer-a-case-report
#12
Asep Santoso, Sang-Don Joo, Dong-Hyun Lee, Young-Jun Seol, Kyung-Soon Park, Taek-Rim Yoon
Femoral neck stress fracture occured commonly in athlete and military recruit populations, some of them are bilateral. Bilateral femoral neck stress fracture that associated with other occupation is very uncommon. We report a bilateral femoral neck stress fracture case that presented with unilateral symptoms in a male shipman laborer. The patient was successfully treated conservatively. Stress fracture sometimes occur associated with an unexpected specific occupation. Consideration of bilateral involvement is highly important in managing stress fracture...
March 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28224071/arthroscopic-fixation-of-os-acetabuli-technique-when-to-resect-and-when-to-fix
#13
Cecilia Pascual-Garrido, John B Schrock, Justin J Mitchell, Gaston Camino Willhuber, Omer Mei-Dan, Jorge Chahla
Acetabular rim fractures, or os acetabuli, are hypothesized to occur as a result of an unfused ossification center or a stress fracture from repetitive impingement of an abnormally shaped femoral neck against the acetabular rim. When treated surgically, these fragments are typically excised as part of the correction for femoroacetabular impingement. However, in some patients, removal of these fragments can create symptoms of gross instability or microinstability of the hip. In these cases, internal fixation of the fragment is necessary...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28210899/interleukin-6-as-possible-early-marker-of-stress-response-after-femoral-fracture
#14
Goran Pesic, Jovana Jeremic, Tamara Nikolic, Vladimir Zivkovic, Ivan Srejovic, Aleksandra Vranic, Jovana Bradic, Branko Ristic, Aleksandar Matic, Nikola Prodanovic, Vladimir Jakovljevic
Bone fracture healing is a complex process which at best results in full recovery of function and structure of injured bone tissue, but all the mechanisms involved in this process, and their mutual interaction, are not fully understood. Despite advancement of surgical procedures, this type of fractures is still a major public health concern. In the last few decades, a lot of attention is focused on the oxygen-free radicals and inflammatory response markers as important factors of skeletal injury. Thus, the aim of the present study was to follow the changes in redox balance and inflammatory response in elderly patients with femoral fractures during the earliest stages of fracture healing, by measuring the values of the observed markers immediately after fracture, as well as the first, third, and seventh postoperative day...
February 16, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28135372/functional-outcomes-following-surgical-management-of-femoral-neck-stress-fractures
#15
Nicholas A Kusnezov, Emmanuel D Eisenstein, John C Dunn, Brian R Waterman
The Military Health System Management Analysis and Reporting Tool was queried to identify all active duty US military service members who underwent operative fixation of femoral neck stress fractures from 2011 to 2012. A total of 13 patients with 17 femoral neck stress fractures met the inclusion criteria. Average patient age was 23.8±5.1 years, and 62% were women. At a mean 26-month follow-up, approximately one-half (46%) of the young military recruits were able to return to their preoperative activity level...
May 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/28131684/rare-implant-specific-complications-of-the-mopyc-radial-head-prosthesis
#16
Michael Hackl, Kilian Wegmann, Thomas C Koslowsky, Felix Zeifang, Oliver Schoierer, Lars P Müller
BACKGROUND: According to currently available data, the clinical short-term results of the MoPyC radial head prosthesis (Bioprofile, Tornier, Montbonnot-Saint-Martin, France) seem favorable. However, we have encountered several implant-specific complications in recent years. Hence, this case series reports rare complications after radial head arthroplasty with the MoPyC prosthesis to make surgeons aware of their existence and to provide information about the underlying cause and possible salvage strategies...
May 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28103892/prehospital-intravenous-fentanyl-to-patients-with-hip-fracture-an-observational-cohort-study-of-risk-factors-for-analgesic-non-treatment
#17
Kristian D Friesgaard, Erika F Christensen, Hans Kirkegaard, Mette D Bendtsen, Flemming B Jensen, Lone Nikolajsen
BACKGROUND: Patients with proximal femoral neck fracture have a high short-term mortality, a high risk of postoperative complications, and impaired quality of life. One of the challenges related to the prehospital treatment of these patients is to administer systemic opioids fast and properly. Effective analgesic prehospital treatment ought be initiated rapidly in order to alleviate the stress that follows acute pain, to facilitate transportation, and to improve quality of care. The objectives of this study were to explore the prevalence of prehospital administration of intravenous fentanyl to patients with proximal femoral neck fracture in the ambulances and to assess risk factors for analgesic non-treatment...
January 19, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28064103/why-do-some-titanium-alloy-total-hip-arthroplasty-modular-necks-fail
#18
Samo K Fokter, Andrej Moličnik, Rajko Kavalar, Primož Pelicon, Rebeka Rudolf, Nenad Gubeljak
BACKGROUND: Increased modularity in total hip arthroplasty (THA) through extra junction between the neck and the femoral stem is gaining popularity among orthopaedic community. However, the advantage of the additional junction is shadowed by an increased risk of mechanical failure. The aim of this study was to describe the exact mechanism of fracture of the modular femoral neck in an uncemented stem. METHODS: Clinical, metallurgical, and mechanical analysis including finite-element modelling and elemental-sensitive tissue analysis with the micro-PIXE method was performed on two patients treated with fully modular primary THA made from Titanium alloy of the same oval taper-cone design...
December 27, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28051983/rapid-magnetic-resonance-imaging-evaluation-of-femoral-neck-stress-fractures-in-a-u-s-active-duty-military-population
#19
Lauren A May, Dillon C Chen, Liem T Bui-Mansfield, Seth D O'Brien
OBJECTIVES: Timely diagnosis of femoral neck stress fractures is important to prevent fracture completion and displacement. We hypothesize that an abbreviated magnetic resonance imaging (MRI) hip examination can diagnose femoral neck stress fractures and that femoral neck stress fractures are common in U.S. military recruits. METHODS: We retrospectively reviewed abbreviated hip MRI examinations performed on active duty patients from November 1, 2013, to August 5, 2014...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28050549/bilateral-stress-fracture-of-femoral-neck-in-non-athlete-case-report
#20
Ubiratan Stefani de Oliveira, Pedro José Labronici, André João Neto, Alexandre Yukio Nishimi, Robinson Esteves Santos Pires, Luiz Henrique Penteado Silva
Bilateral stress fracture of femoral neck in healthy young patients is an extremely rare entity, whose diagnostic and treatment represent a major challenge. Patients with history of hip pain, even non-athletes or military recruits, should be analyzed to achieve an early diagnosis and prevent possible complications from the surgical treatment. This report describes a 43-year-old male patient, non-athlete, without previous diseases, who developed bilateral stress fracture of femoral neck without displacement...
November 2016: Revista Brasileira de Ortopedia
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