keyword
MENU ▼
Read by QxMD icon Read
search

femoral neck stress fracture

keyword
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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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...
January 30, 2017: Orthopedics
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
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/27824547/atypical-femur-fractures-in-patients-treated-with-bisphosphonates-identification-management-and-prevention
#15
REVIEW
Judith Sarah Bubbear
Osteoporosis is a common condition with significant health care costs. First-line therapy is with bisphosphonates, which have proven anti-fracture efficacy. Around 10 years after the introduction of bisphosphonates reports began to be published of atypical femoral fractures (AFFs) that may be associated with this therapy. These fractures are associated with significant morbidity although lower mortality than the more common osteoporotic neck-of-femur fractures. A case definition has been described to allow identification of this class of fracture...
October 31, 2016: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/27811514/overuse-injuries-in-the-pediatric-population
#16
Mark Wu, Ryan Fallon, Benton E Heyworth
Athletic overuse injuries are becoming an increasingly common entity in the active pediatric population. The prevalence of these injuries may be attributed to the combination of an underdeveloped musculoskeletal system, increased participation in competitive sport at a younger age, and increased duration and intensity of training. Many of these injuries may go unreported and/or undiagnosed, as they do not all result in time lost from sports, and are not always appreciated on imaging. Left unrecognized, untreated, or poorly managed, overuse injuries can have long-term health consequences for young athletes...
December 2016: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/27797839/young-man-with-sudden-severe-hip-pain-secondary-to-femoral-neck-stress-fracture
#17
Ziva Petrin, Anupam Sinha, Sunny Gupta, Mitesh K Patel
Femoral neck stress fractures have been described in military recruits and athletes. Early recognition and aggressive treatment are important, as femoral neck stress fractures have a high potential for complications and even uncomplicated fractures require an extensive course of rehabilitation. Tension-side (superolateral) stress fractures of the femoral neck are at high risk for complications such as displacement, non-union and avascular necrosis, and need to be treated surgically, while compression-side (inferomedial) fractures can be treated conservatively...
October 26, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27777920/bilateral-femoral-neck-stress-fracture-in-child-a-case-report
#18
Gun-Woo Lee, Kyung-Soon Park, Taek-Rim Yoon, Eshnazarov Kamolhuja Eshnazarovich
A femoral neck stress fracture in child is rare, particularly in bilateral case. It is easy to miss initially or may be misdiagnosed. The authors experienced a case of bilateral femoral neck stress fracture in a 10-year-old boy with bilateral hip. The patient was successfully healed by conservative treatment. We report this rare case with a review of the literature. A femoral neck stress fracture should be included in the differential diagnosis in children who present with sustained hip or groin pain.
September 2016: Hip & Pelvis
https://www.readbyqxmd.com/read/27777119/focal-osteoporosis-defects-play-a-key-role-in-hip-fracture
#19
Kenneth E S Poole, Linda Skingle, Andrew H Gee, Thomas D Turmezei, Fjola Johannesdottir, Karen Blesic, Collette Rose, Madhavi Vindlacheruvu, Simon Donell, Jan Vaculik, Pavel Dungl, Martin Horak, Jan J Stepan, Jonathan Reeve, Graham M Treece
BACKGROUND: Hip fractures are mainly caused by accidental falls and trips, which magnify forces in well-defined areas of the proximal femur. Unfortunately, the same areas are at risk of rapid bone loss with ageing, since they are relatively stress-shielded during walking and sitting. Focal osteoporosis in those areas may contribute to fracture, and targeted 3D measurements might enhance hip fracture prediction. In the FEMCO case-control clinical study, Cortical Bone Mapping (CBM) was applied to clinical computed tomography (CT) scans to define 3D cortical and trabecular bone defects in patients with acute hip fracture compared to controls...
January 2017: Bone
https://www.readbyqxmd.com/read/27753569/epidemiology-of-lower-extremity-stress-fractures-in-the-united-states-military
#20
Brian R Waterman, Baris Gun, Julia O Bader, Justin D Orr, Philip J Belmont
PURPOSE: To comprehensively quantify established risk factors for the development of lower extremity stress fractures within a contemporary U.S. military cohort. METHODS: Using the Defense Medical Epidemiological Database, all U.S. service members diagnosed with tibia/fibula, metatarsal, other bone, femoral neck, and femoral shaft stress fractures were identified based on International Classification of Diseases, 9th Revision, Clinical Modification code from 2009 to 2012...
October 2016: Military Medicine
keyword
keyword
42411
1
2
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"