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neck stress fracture

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https://www.readbyqxmd.com/read/29336599/femoral-neck-stress-injuries-analysis-of-156-cases-in-a-u-s-military-population-and-proposal-of-a-new-mri-classification-system
#1
Iván R Rohena-Quinquilla, Fabian J Rohena-Quinquilla, William F Scully, J Richard Lee Evanson
OBJECTIVE: The objective of this study is to formulate a new MRI classification system for fatigue-type femoral neck stress injuries (FNSIs) that is based on patient management and return-to-duty (RTD) time. MATERIALS AND METHODS: A retrospective review of 156 consecutive FNSIs in 127 U.S. Army soldiers over a 24-month period was performed. The width of marrow edema for low-grade FNSIs and the measurement of macroscopic fracture as a percentage of femoral neck width for high-grade FNSIs were recorded...
January 16, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29283748/femoral-neck-stress-in-older-adults-during-stair-ascent-and-descent
#2
Chen Deng, Jason C Gillette, Timothy R Derrick
A detailed understanding of the hip loading environment is needed to help prevent hip fractures, minimize hip pain, rehabilitate hip injuries and design osteogenic exercises for the hip. The purpose of this study was to compare femoral neck stress during stair ascent and descent and to identify the contribution of muscles and reaction forces to the stress environment in mature adult subjects (n=17; age: 50-65 years). Motion analysis and inverse dynamics were combined with musculoskeletal modelling and optimization, then used as input to an elliptical femoral neck cross-section model to estimate femoral neck stress...
December 28, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29277713/clinical-hip-fracture-is-accompanied-by-compression-induced-failure-in-the-superior-cortex-of-the-femoral-neck
#3
Tengteng Tang, Peter A Cripton, Pierre Guy, Heather A McKay, Rizhi Wang
Hip fractures pose a major health problem throughout the world due to their devastating impact. Current theories for why these injuries are so prevalent in the elderly point to an increased propensity to fall and decreases in bone mass with ageing. However, the fracture mechanisms, particularly the stress and strain conditions leading to bone failure at the hip remain unclear. Here, we directly examined the cortical bone from clinical intra-capsular hip fractures at a microscopic level, and found strong evidence of compression induced failure in the superior cortex...
December 22, 2017: Bone
https://www.readbyqxmd.com/read/29244693/bilateral-simultaneous-femoral-neck-stress-fracture-despite-clinical-recovery-from-anorexia-nervosa-a-case-report
#4
Jacques Hernigou, Simon Koulischer, Renaud Maes
CASE: A 38-year-old woman who had returned to sports activity (running) after having clinically recovered from anorexia nervosa presented with a bilateral femoral neck stress fracture that was treated with bilateral hip osteosynthesis. CONCLUSION: Although exercise is usually considered to be beneficial for health, heavy exercise (such as running) after recovery from anorexia nervosa may be associated with an increased risk of fracture.
January 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29244683/insufficiency-fracture-occurring-3-years-after-union-of-an-intertrochanteric-hip-fracture-a-case-report
#5
Byung-Ho Yoon, Sung Bae Park
CASE: We present a rare case of insufficiency fracture at the level of the distal interlocking screw following union of an intertrochanteric hip fracture. A 74-year-old woman reported chronic thigh pain for 1 month. She had a history of an osteoporotic stable intertrochanteric fracture that was successfully treated with a short intramedullary nail 3.5 years prior. However, after union, the neck-shaft angle of the femur changed from 125° to 117°. She had been on alendronic acid therapy to prevent a secondary osteoporotic fracture...
January 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29223594/femoral-neck-fractures-after-removal-of-hardware-in-healed-trochanteric-fractures
#6
REVIEW
Antonio Barquet, Peter V Giannoudis, Andrés Gelink
INTRODUCTION: Hardware removal in healed trochanteric fractures (TF) in the absence of infection or significant mechanical complications is rarely indicated. However, in patients with persistent pain, prominent material and discomfort in the activities of daily living, the implant is eventually removed. Publications of ipsilateral femoral neck fracture after removal of implants from healed trochanteric fractures (FNFARIHTF) just because of pain or discomfort are rare. The purpose of this systematic review of the literature is to report on the eventual risk factors, the mechanisms, the clinical presentation, and frequency, and to pay special emphasis in their prevention...
December 2017: Injury
https://www.readbyqxmd.com/read/29191643/incidence-of-stress-urinary-incontinence-following-posterior-urethroplasty-for-radiation-induced-urethral-strictures
#7
Paul H Chung, Paige Esposito, Hunter Wessells, Bryan B Voelzke
OBJECTIVES: To identify the frequency of de novo SUI after posterior excision and primary anastomotic (EPA) urethroplasty in patients with radiation-induced urethral strictures (RIUS) and compare to patients with pelvic fracture urethral injuries (PFUI). METHODS: A retrospective review was conducted among patients who underwent successful posterior EPA urethroplasty between 2008 and 2016 for RIUS from prostate cancer or PFUI from blunt trauma. Only patients with an intact bladder neck on imaging were included...
November 27, 2017: Urology
https://www.readbyqxmd.com/read/29181361/insufficiency-fractures-at-unusual-sites-a-case-series
#8
Raju Vaishya, Amit Kumar Agarwal, Paras Kumar Banka, Vipul Vijay, Abhishek Vaish
Introduction: Insufficiency fractures (IFs) are a subtype of stress fractures commonly associated with osteoporosis and Vitamin D deficiency. These nontraumatic fractures often occur in the pelvis and spine, but the involvement of other unusual sites is also not very uncommon. Plain radiographs and magnetic resonance imaging scan are the most commonly used imaging modalities for the diagnosis of IF. Case Report: We are presenting a series of five cases of IFs at unusual sites, along with a detailed literature review on this individual...
July 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29167969/association-of-incident-hip-fracture-with-the-estimated-femoral-strength-by-finite-element-analysis-of-dxa-scans-in-the-osteoporotic-fractures-in-men-mros-study
#9
L Yang, N Parimi, E S Orwoll, D M Black, J T Schousboe, R Eastell
Finite element model can estimate bone strength better than BMD. This study used such a model to determine its association with hip fracture risk and found that the strength estimate provided limited improvement over the hip BMDs in predicting femoral neck (FN) fracture risk only. INTRODUCTION: Bone fractures occur only when it is loaded beyond its ultimate strength. The goal of this study was to determine the association of femoral strength, as estimated by finite element (FE) analysis of DXA scans, with incident hip fracture as a single condition or with femoral neck (FN) and trochanter (TR) fractures separately in older men...
November 22, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/29083360/management-and-treatment-of-femoral-neck-stress-fractures-in-recreational-runners-a-report-of-four-cases-and-review-of-the-literature
#10
Carlo Biz, Antonio Berizzi, Alberto Crimì, Chiara Marcato, Giulia Trovarelli, Pietro Ruggieri
Femoral neck stress fractures (FNSFs) in healthy young subjects are uncommon and most prevalent among long-distance runners and military recruits. Women seem to be at higher risk of developing stress fractures because of possible eating disorders followed by amenorrhea and osteoporosis. This case report describes four young and middle-aged, active female recreational runners who developed stress fractures of the femoral neck. In three of them, with a clinical history of persistent pain in the groin region, which worsened during training, early diagnosis by MRI was considered essential in detecting the fractures...
October 18, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29038836/automated-dxa-based-finite-element-analysis-for-hip-fracture-risk-stratification-a-cross-sectional-study
#11
S Yang, W D Leslie, Y Luo, A L Goertzen, S Ahmed, L M Ward, I Delubac, L M Lix
Fracture risk indices (FRIs) generated from DXA-based finite element analysis were associated with hip fracture independent of FRAX score computed with femoral neck bone mineral density (BMD). Prospective studies are warranted to determine whether FRIs represent an improvement over BMD for predicting incident hip fractures. INTRODUCTION: The study aims to examine the association between prior hip fracture and FRIs derived from automated finite element analysis (FEA) of DXA hip scans. Femoral neck, intertrochanteric, and subtrochanteric FRIs were calculated as the von Mises stress induced by a sideways fall divided by the bone yield stress over the specified region of interest (ROI)...
October 6, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28982480/location-of-atypical-femoral-fracture-can-be-determined-by-tensile-stress-distribution-influenced-by-femoral-bowing-and-neck-shaft-angle-a-ct-based-nonlinear-finite-element-analysis-model-for-the-assessment-of-femoral-shaft-loading-stress
#12
Yoto Oh, Koji Fujita, Yoshiaki Wakabayashi, Yoshiro Kurosa, Atsushi Okawa
INTRODUCTION: Loading stress due to individual variations in femoral morphology is thought to be strongly associated with the pathogenesis of atypical femoral fracture (AFF). In Japan, studies on AFF regarding pathogenesis in the mid-shaft are well-documented and a key factor in the injury is thought to be femoral shaft bowing deformity. Thus, we developed a CT-based finite element analysis (CT/FEA) model to assess distribution of loading stress in the femoral shaft. PATIENTS AND METHODS: A multicenter prospective study was performed at 12 hospitals in Japan from August 2015 to February 2017...
September 27, 2017: Injury
https://www.readbyqxmd.com/read/28893491/micro-finite-element-method-to-assess-elastic-properties-of-trabecular-bone-at-micro-and-macroscopic-level
#13
R Rieger, J C Auregan, T Hoc
OBJECTIVE OF THE STUDY: The objective of the present study is to assess the mechanical behavior of trabecular bone based on microCT imaging and micro-finite-element analysis. In this way two methods are detailed: (i) direct determination of macroscopic elastic property of trabecular bone; (ii) inverse approach to assess mechanical properties of trabecular bone tissue. PATIENTS: Thirty-five females and seven males (forty-two subjects) mean aged (±SD) 80±11.7 years from hospitals of Assistance publique-Hôpitaux de Paris (AP-HP) diagnosed with osteoporosis following a femoral neck fracture due to a fall from standing were included in this study...
September 8, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28807072/clavicle-fracture-with-osteomyelitis-after-neck-dissection-and-post-operative-radiotherapy-case-report
#14
R Shodo, Y Sato, H Ota, A Horii
BACKGROUND: Non-traumatic bone fractures in cancer patients are usually pathological fractures due to bone metastases. In head and neck cancer patients, clavicle stress fractures may occur as a result of atrophy of the trapezius muscle after neck dissection in which the accessory nerve becomes structurally or functionally damaged. CASE REPORT: A 71-year-old man underwent modified radical neck dissection with accessory nerve preservation and post-operative radiotherapy for submandibular lymph node metastases of tongue cancer...
August 15, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28781307/isolated-right-ventricular-stress-takotsubo-cardiomyopathy
#15
Hitoshi Sumida, Kenji Morihisa, Kazuhiro Katahira, Seigo Sugiyama, Takuya Kishi, Shuichi Oshima
A 79-year-old woman was admitted with a left femoral neck fracture and she immediately developed circulatory shock. Echocardiography showed a markedly enlarged right ventricle (RV) with systolic ballooning of the mid-ventricular wall and preserved contractility of the apex. The left ventricular (LV) motion was normal. Multi-detector-row computed tomography showed severe congestion of the contrast media in the right atrium with no forward flow to RV, but no pulmonary embolism. She was successfully treated with percutaneous veno-arterial extracorporeal membrane oxygenation...
August 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28770293/case-series-of-patients-with-pathological-dyaphiseal-fractures-from-metastatic-bone-disease
#16
Dinu Vermesan, Radu Prejbeanu, Horia Haragus, Alis Dema, Manuel D Oprea, Diana Andrei, Dan V Poenaru, Marius Niculescu
INTRODUCTION: Fractures on pathologic bone have major impact on life quality. The appropriate treatment is not standardized, but the current literature delineates that surgery must provide adequate stabilization for the life expectancy. We aimed to review the epidemiology, treatment outcomes and survival in our department. MATERIAL AND METHODS: The electronic database from a major referral centre was searched for patients treated for tumours and fractures by the corresponding ICM-10 codes over five years...
October 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28765053/metatarsal-periosteal-plantar-ganglion-cyst-associated-with-stress-fracture-a-case-report
#17
Kenji Serigano, Masayoshi Ikeda, Tadashi Nukaga, Masahiko Watanabe
We encountered a rare case of a periosteal ganglion cyst at the plantar aspect of the metatarsal that induced a stress fracture in a 77-year-old female. The clinical manifestation of the plantar ganglion cyst of the foot was not evident because of its location deep beneath the plantar fascia. A pressure cortical indentation was detected at the metatarsal neck on the initial radiographs. Magnetic resonance imaging showed a stress fracture of the metatarsal with a ganglion cyst. The stress fracture was thought to have resulted from several factors, including structural weakness due to bony absorption from the ganglion cyst, osteoporosis that induced a fragility fracture, and a load-induced fatigue fracture...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28726191/virtual-experimental-validation-of-dynamic-osteosynthesis-in-the-treatment-of-fractures-of-the-proximal-femur
#18
V E Dubrov, I A Kuz'kin, I M Shcherbakov, A L Matveev, A V Yudin
Volume model of transtrochanteric fracture of the femoral bone fixed by Targon PF dynamic fixator was studied by the finite element analysis. The following parameters were measured: magnitude and direction of displacement of system elements, pressure between fragments, and von Mises stress distribution in the fixator depending on support screw plunging into the sleeve. The results indicate that stability of the bone-nail system increases during fracture union and 10-mm shortening of the femoral neck axis, which is seen from a decrease in system deformation under load by 16...
June 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28687543/injury-epidemiology-of-tennis-players-at-the-2011-2016-australian-open-grand-slam
#19
Danielle T Gescheit, Stuart J Cormack, Rob Duffield, Stephanie Kovalchik, Tim O Wood, Melanie Omizzolo, Machar Reid
AIM: To examine the epidemiology and in-event treatment frequency of injury at the 2011-2016 Australian Open tournaments. METHODS: Injury incidence was defined as a medical consultation by a tournament physician and in-event treatment frequency as the mean total number of follow-up medical/physiotherapy consultations (2013-2016 tournaments only). Data were collated by sex, injury region and type and reported as frequencies per 10 000 game exposures. Incidence rate s± 95% CI and rate ratios were used to test effects for injury, sex and year...
September 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28630834/van-neck-odelberg-disease-a-rare-case-report
#20
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
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