984 results match your criteria Femoral Neck Stress Fracture


Mid-term results with a neck-preserving femoral stem for total hip arthroplasty.

Hip Int 2018 Nov;28(2_suppl):28-34

1 Joint Replacement Division, Department of Orthopedic Surgery and Trauma, ASST Niguarda Hospital, Milan, Italy.

Introduction:: This prospective study aims to evaluate the mid-term clinical and radiological performance of a new short, neck-preserving femoral stem in total hip arthroplasty (THA).

Patients And Methods:: 178 consecutive patients (190 hips) underwent THA from November 2008 to July 2016. Mean follow-up is 62. Read More

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http://dx.doi.org/10.1177/1120700018813216DOI Listing
November 2018

Optimum Configuration of Cannulated Compression Screws for the Fixation of Unstable Femoral Neck Fractures: Finite Element Analysis Evaluation.

Biomed Res Int 2018 9;2018:1271762. Epub 2018 Dec 9.

Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing 100853, China.

Objectives: In the present study, we evaluated the mechanical outcome of different configurations of cannulated compression screws for the fixation of Pauwels type III femoral neck fracture and the stress distribution around the holes corresponding to fixation protocol after screws removal.

Methods: The Pauwels type III of femoral neck fracture was created in 3-matic software and the models of cannulated compression screws were constructed using UG-NX software. Five fixation systems were assembled to the fracture models. Read More

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https://www.hindawi.com/journals/bmri/2018/1271762/
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http://dx.doi.org/10.1155/2018/1271762DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6304632PMC
December 2018
5 Reads

Common and Uncommon Injuries in Ultra-endurance Sports.

Sports Med Arthrosc Rev 2019 Mar;27(1):25-30

North Carolina Orthopaedic Clinic, Duke University Health System, Durham, NC.

Ultra-endurance sports are associated with prolonged physical exercise both during training and competition. Musculoskeletal injuries are common as a result of the repetitive physical stresses. Stress fractures in the weight-bearing bones should always be suspected when ultra-endurance athletes present with pain over bony structures. Read More

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http://Insights.ovid.com/crossref?an=00132585-201903000-0000
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http://dx.doi.org/10.1097/JSA.0000000000000217DOI Listing
March 2019
9 Reads

Long term survival analysis of cementless Spotorno femoral stem in young patients.

Acta Orthop Traumatol Turc 2018 Dec 21. Epub 2018 Dec 21.

İstanbul Training and Research Hospital, Department of Physical Therapy and Rehabilitation, İstanbul, Turkey.

Objective: The aim of this study was to analyze the survivorship and clinical outcome of Cementless Spotorno (CLS) stem in young patients.

Methods: A total of 99 consecutive hip arthroplasties using CLS stem were performed on 84 patients younger than 50 years of age between 1993 and 2001. 63 patients were available for final follow-up (mean age: 39 ± 7. Read More

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http://dx.doi.org/10.1016/j.aott.2018.11.004DOI Listing
December 2018
3 Reads

Mechanical stress contributes to osteoarthritis development through the activation of transforming growth factor beta 1 (TGF-β1).

Bone Joint Res 2018 Nov 1;7(11):587-594. Epub 2018 Dec 1.

Department of Orthopedics, Academy of Orthopedics Guangdong Province, Orthopedic Hospital of Guangdong Province, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.

Objectives: The role of mechanical stress and transforming growth factor beta 1 (TGF-β1) is important in the initiation and progression of osteoarthritis (OA). However, the underlying molecular mechanisms are not clearly known.

Methods: In this study, TGF-β1 from osteoclasts and knee joints were analyzed using a co-cultured cell model and an OA rat model, respectively. Read More

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http://dx.doi.org/10.1302/2046-3758.711.BJR-2018-0057.R1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6269596PMC
November 2018
2 Reads

Inversion of the acetabular labrum causes increased localized contact pressure on the femoral head: a biomechanical study.

Int Orthop 2018 Dec 11. Epub 2018 Dec 11.

Department of Orthopedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan.

Purpose: Although studies suggest that subchondral insufficiency fracture of the femoral head may cause rapidly progressive osteoarthritis of the hip, the mechanism of that relationship remains unclear. Our biomechanical study aimed to provide more data in this area by quantifying pressure distribution on the femoral head for normal and inverted hips and by determining the effects of labral inversion on pressure distribution across the joint, focusing on types of fracture under load.

Methods: We tested mid-sized fourth-generation composite femurs at 15° of adduction, and applied 1 mm/min of axial compressive force to the femoral heads until failure. Read More

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http://link.springer.com/10.1007/s00264-018-4266-3
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http://dx.doi.org/10.1007/s00264-018-4266-3DOI Listing
December 2018
10 Reads

Femoral neck fractures after internal fixation of trochanteric fractures with implants in situ in adults: A systematic review.

Injury 2018 Dec;49(12):2121-2131

AEPSM, Montevideo, Uruguay.

Introduction: Femoral neck fractures (FNF) after internal fixation of trochanteric fractures (AIFTF) with the implant in situ (WIIS) are uncommon. Publications of FNFAIFTFWIIS are rare. The purpose of this systematic review of the literature is to report on the frequency, risk factors, mechanisms, clinical presentation, diagnostic and therapeutic modalities, outcomes and the eventual prevention of this complication. Read More

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http://dx.doi.org/10.1016/j.injury.2018.11.007DOI Listing
December 2018
3 Reads

Comparative analysis for five fixations of Pauwels-I by the biomechanical finite-element method.

J Invest Surg 2018 Dec 5:1-10. Epub 2018 Dec 5.

a Orthopedics Dept. of 1st Affiliated Hospital , GuangZhou Medical University , GuangDong , China.

Background: Little is known about how biomechanics govern the five fixtures such as DHS, MLS, DHS + LS, LP, and HA are accepted as common therapeutic techniques.

Aims And Objectives: A series of numerical models for a femoral neck fracture of Pauwels-I will be constructed by innovative approach of finite element in order to determine the most optimized option in comparison with biomechanical performance.

Method: Twenty sets of computer tomography scanned femora were imported onto Mimics to extract 3 D models; these specimens were transferred to Geomagic-Studio for a simulative osteotomy and kyrtograph; then, they underwent UG to fit simulative solid models; 5 sorts of fixture were then expressed by Pro-Engineer virtually. Read More

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http://dx.doi.org/10.1080/08941939.2018.1533054DOI Listing
December 2018
2 Reads

Dynamic Stress Fluoroscopy for Evaluation of the Femoral Neck After Intramedullary Nails: Improved Sensitivity for Identifying Occult Fractures.

J Orthop Trauma 2019 Feb;33(2):88-91

University of South Florida, Tampa, FL.

Objectives: To report on the use of dynamic stress fluoroscopy (DSF) for detection of occult fractures of the femoral neck associated with femoral shaft fractures. To compare DSF with a fully static imaging protocol in detecting occult femoral neck fractures.

Design: Multicenter retrospective cohort study. Read More

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http://dx.doi.org/10.1097/BOT.0000000000001343DOI Listing
February 2019
1 Read

Mechanical simulation study of postoperative displacement of trochanteric fractures using the finite element method.

J Orthop Surg Res 2018 Nov 27;13(1):300. Epub 2018 Nov 27.

Department of Orthopaedic Surgery Restorative Medicine of Neuro-Musculoskeletal System, Fujita Health University, Bantane Hospital, 3-6-10 Otoubashi, Nakagawa-ku, Nagoya, Aichi, 454-8509, Japan.

Background: Femoral trochanteric fractures are common among older adults. In the reduction of trochanteric fractures, acquiring the support of the anterior cortex at the fracture site on lateral view immediately after surgery is important. However, even if the cortical support is acquired, postoperative displacement due to the loss of this support often occurs. Read More

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http://dx.doi.org/10.1186/s13018-018-1011-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6258410PMC
November 2018
1 Read

Early diagnosis of femoral neck stress fractures may decrease incidence of bilateral progression and surgical interventions: A case report and literature review.

Int J Surg Case Rep 2018 31;53:189-192. Epub 2018 Oct 31.

Department of Orthopedic Surgery, Franciscan St. James Hospital, 20201 South Crawford Avenue, Olympia Fields, IL, 60461, United States.

Introduction: Early intervention in femoral neck stress fractures (FNSFs) can be self- limiting, but they have an insidious presentation. High index of suspicion for an occult fracture is necessary to avoid bilateral progression and/or operative interventions.

Case Presentation: A 83-year-old female, non-athlete, presents with multiple comorbidities and progressive bilateral FNSFs. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S22102612183047
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http://dx.doi.org/10.1016/j.ijscr.2018.10.050DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226580PMC
October 2018
9 Reads

Finite element analysis of different configurations of fully threaded cannulated screw in the treatment of unstable femoral neck fractures.

J Orthop Surg Res 2018 Oct 29;13(1):272. Epub 2018 Oct 29.

Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People's Republic of China.

Background: In the present study, we evaluated the mechanical outcome of different configurations formed by fully threaded screws and partially threaded screws in the treatment of unstable femoral neck fracture.

Methods: The Pauwels type III unstable femoral fracture and the models of the fully threaded screw and partially threaded screw were constructed in 3-matic software and UG-NX software respectively. We then assembled the different screw configurations to the fracture model separately to form the fixation models. Read More

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https://josr-online.biomedcentral.com/articles/10.1186/s1301
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http://dx.doi.org/10.1186/s13018-018-0970-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6206921PMC
October 2018
4 Reads
1.580 Impact Factor

Biomechanical assessment of single LISS versus double-plate osteosynthesis in the AO type 33-C2 fractures: A finite element analysis.

Injury 2018 Dec 9;49(12):2142-2146. Epub 2018 Oct 9.

Department of Orthopaedics, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, PR China. Electronic address:

Objectives: In the present study, we assessed the biomechanical advantage between the single LISS and double-plate used in AO type 33-C2 fractures with the method of finite element analysis, which will help surgeons choose the optimal therapy to the unstable distal femoral fracture.

Methods: The AO type 33-C2 fractures and the models of LISS plate and medial plate was constructed in 3-matic software and UG-NX software respectively. We then assembled the single plate and the double-plate to the fracture model separately to form the fixation models. Read More

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http://dx.doi.org/10.1016/j.injury.2018.10.011DOI Listing
December 2018
2 Reads
2.140 Impact Factor

Modular femoral neck failure after revision of a total hip arthroplasty: a finite element analysis.

Eur J Orthop Surg Traumatol 2018 Oct 13. Epub 2018 Oct 13.

Department for Orthopaedic Surgery, University Medical Center Maribor, Ljubljanska 5, 2000, Maribor, Slovenia.

The authors report on a case of modular femoral neck fracture which appeared 21 months after revision of acetabular component. The revision surgery was performed 8 years after the primary total hip arthroplasty due to aseptic loosening of the acetabular component. During acetabular revision, the primary implanted short (S, - 3. Read More

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http://dx.doi.org/10.1007/s00590-018-2314-8DOI Listing
October 2018
2 Reads

Osteoporosis development and vertebral fractures after abdominal irradiation in patients with gastric cancer.

BMC Cancer 2018 Oct 11;18(1):972. Epub 2018 Oct 11.

Department of Radiation Oncology, Biruni University Medicana International Hospital, Istanbul, Turkey.

Background: Decrease in bone mineral density, osteoporosis development, bone toxicity and resulting insufficiency fractures as late effect of radiotherapy are not well known. Osteoporosis development related to radiotherapy has not been investigated properly and insufficiency fractures are rarely reported for vertebral bones.

Methods: Ninety-seven patients with gastric adenocarcinoma were evaluated for adjuvant treatment after surgery. Read More

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https://bmccancer.biomedcentral.com/articles/10.1186/s12885-
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http://dx.doi.org/10.1186/s12885-018-4899-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6182865PMC
October 2018
15 Reads
3.362 Impact Factor

Biofidelic finite element models for accurately classifying hip fracture in a retrospective clinical study of elderly women from the AGES Reykjavik cohort.

Bone 2019 Mar 19;120:25-37. Epub 2018 Sep 19.

Institute for Biomechanics, ETH Zürich, Zürich, Switzerland; School of Science and Engineering, Reykjavik University, Reykjavik, Iceland. Electronic address:

Clinical retrospective studies have only reported limited improvements in hip fracture classification accuracy using finite element (FE) models compared to conventional areal bone mineral density (aBMD) measurements. A possible explanation is that state-of-the-art quasi-static models do not estimate patient-specific loads. A novel FE modeling technique was developed to improve the biofidelity of simulated impact loading from sideways falling. Read More

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http://dx.doi.org/10.1016/j.bone.2018.09.014DOI Listing
March 2019
5 Reads

Femoral Neck Fractures in Children: A Review.

Authors:
Thomas Palocaren

Indian J Orthop 2018 Sep-Oct;52(5):501-506

Department of Orthopaedics, Christian Medical College, Vellore, Tamil Nadu, India.

Paediatric femoral neck fractures are uncommon injuries and are usually caused by high-energy trauma. Low-energy trauma can result in pathologic neck fractures and stress fractures of the neck, due to repetitive activity. Surgical options can vary based on age, Delbet classification and displacement of the fracture. Read More

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http://dx.doi.org/10.4103/ortho.IJOrtho_404_17DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142798PMC
September 2018
2 Reads

Strength Analyses of Screws for Femoral Neck Fractures.

J Med Biol Eng 2018 20;38(5):816-834. Epub 2018 Apr 20.

2Trauma Centre, University Hospital Ostrava, 17. listopadu 1790, 708 52 Ostrava, Czech Republic.

This article represents a multidisciplinary approach to biomechanics (engineering + medicine) in the field of "collum femoris" fractures. One possible treatment method for femoral neck fractures, especially for young people, is the application of cancellous (i.e. Read More

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http://link.springer.com/10.1007/s40846-018-0378-x
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http://dx.doi.org/10.1007/s40846-018-0378-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6132706PMC
April 2018
3 Reads

Assessing bone quality through mechanical properties in postmenopausal trabecular bone.

Injury 2018 Sep;49 Suppl 2:S3-S10

University of Granada, Faculty of Dentistry, Dental Materials Section, Colegio Máximo de Cartuja s/n, 18071 Granada, Spain.

Background: The inner structure of trabecular bone is a result of structural optimization provided by remodeling processes. Changes in hormonal status related to menopause cause bone tissue loss and micro-architectural deterioration with a consequent susceptibility to fracture. Accumulation of micro-damage in bone, as a function of the rate of production and rate of repair, underlies the development of stress fractures, increasing fragility associated to age and osteoporosis, especially in transmenopausal women. Read More

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http://dx.doi.org/10.1016/j.injury.2018.07.035DOI Listing
September 2018
2 Reads

[Frequency of complications in patients older than 60 years with hip fracture].

Acta Ortop Mex 2018 Mar-Apr;32(2):65-69

Traumatología y Ortopedia. Hospital «Dr. Darío Fernández Fierro», Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE), Ciudad de México. México.

Introduction: According to figures from INEGI 2009, indicate that one in 12 Mexican women and one in 20 men over 65 will suffer a hip fracture. Is expected to reach 110,055 patients in the year 2050. Femoral neck stress fractures are more common in women and consist of 5 to 10%. Read More

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September 2018
12 Reads

Femoral Neck Stress Fractures: MRI Risk Factors for Progression.

J Bone Joint Surg Am 2018 Sep;100(17):1496-1502

Department of Orthopedics, Naval Medical Center San Diego, San Diego, California.

Background: Femoral neck stress fractures are overuse injuries with devastating consequences if not diagnosed and treated appropriately. The aim of this study was to retrospectively review femoral neck stress fractures using a magnetic resonance imaging (MRI)-based protocol and to identify imaging risk factors that could predict fracture progression requiring surgical intervention.

Methods: We identified all femoral neck stress fractures treated at our institution from 2002 to 2015. Read More

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http://dx.doi.org/10.2106/JBJS.17.01593DOI Listing
September 2018
21 Reads

On the internal reaction forces, energy absorption, and fracture in the hip during simulated sideways fall impact.

PLoS One 2018 16;13(8):e0200952. Epub 2018 Aug 16.

Institute for Biomechanics, ETH Zürich, Zürich, Switzerland.

The majority of hip fractures have been reported to occur as a result of a fall with impact to the greater trochanter of the femur. Recently, we developed a novel cadaveric pendulum-based hip impact model and tested two cadaveric femur-pelvis constructs, embedded in a soft tissue surrogate. The outcome was a femoral neck fracture in a male specimen while a female specimen had no fracture. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0200952PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6095517PMC
January 2019
2 Reads

Geometric and Mechanical Bone Response to a Multidisciplinary Weight Loss Intervention in Adolescents With Obesity: The ADIBOX Study.

J Clin Densitom 2018 Jun 19. Epub 2018 Jun 19.

Université Clermont Auvergne, Laboratory of the Metabolic Adaptations to Exercise under Physiological and Pathological Conditions (AME2P), Clermont-Ferrand, France; Faculty of Health, Australian Catholic University, Melbourne, VIC, Australia; CRNH Auvergne, Clermont-Ferrand, France.

The effectiveness of structured multidisciplinary weight loss (WL) programs combining nutrition and physical activity on bone geometry and strength remains uncertain in adolescents with obesity. The study investigated the impact of a structured WL intervention on bone geometry and strength in adolescents with obesity. Thirty-one adolescents with obesity (mean [standard deviation] 13. Read More

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http://dx.doi.org/10.1016/j.jocd.2018.06.002DOI Listing
June 2018
5 Reads

Stress Fracture of Proximal Femur after Hip Resurfacing Treated with Cannulated Screw.

Joints 2018 Jun 22;6(2):128-130. Epub 2018 Jun 22.

Hip Resurfacing Department, San Raffaele Hospital, Vita e Salute University, Milan, Italy.

Stress fractures of the proximal femur are described in athletes and military personnel. In most cases, they are not treated surgically, except when they are at the top of the femoral neck and with cortical involvement. The return to sports is not recommended in patients with hip replacement, especially for the high rate of revision of implants in the younger patients. Read More

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http://dx.doi.org/10.1055/s-0038-1660815DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6059856PMC
June 2018
8 Reads

Finite element analysis of the impact of screw insertion distal to the trochanter minor on the risk of iatrogenic subtrochanteric fracture.

Proc Inst Mech Eng H 2018 Aug 20;232(8):807-818. Epub 2018 Jul 20.

4 Department of Civil Engineering, Istanbul Aydin University, Istanbul, Turkey.

Iatrogenic subtrochanteric fractures are rarely encountered after cannulated screw fixation of femoral neck fractures; however, when they do occur, there can be several complications. Many orthopedic surgeons have concerns about the potential for iatrogenic subtrochanteric fractures after screw fixation distal to the trochanter minor; therefore, some surgeons are typically reluctant to perform this procedure. This study focused on the risk of an iatrogenic subtrochanteric fracture after treating femoral neck fractures with cannulated screws. Read More

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http://journals.sagepub.com/doi/10.1177/0954411918789963
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http://dx.doi.org/10.1177/0954411918789963DOI Listing
August 2018
10 Reads

[Precise application of Traditional Chinese Medicine in minimally-invasive techniques].

Authors:
Fu-Hui Dong

Zhongguo Gu Shang 2018 06;31(6):493-496

Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China;

The miminally-invasive techniques of traditional Chinese medicine(TCM) uses different types of acupuncture needles to treat diseased locations with special techniques. These techniques include different methods of insertion and closed incision (press cutting, sliding cutting, scrape cutting, etc.). Read More

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http://dx.doi.org/10.3969/j.issn.1003-0034.2018.06.001DOI Listing
June 2018
7 Reads

Impact loading history modulates hip fracture load and location: A finite element simulation study of the proximal femur in female athletes.

J Biomech 2018 Jul 8;76:136-143. Epub 2018 Jun 8.

The UKK Institute for Health Promotion Research, Tampere, Finland. Electronic address:

Sideways falls impose high stress on the thin superolateral cortical bone of the femoral neck, the region regarded as a fracture-prone region of the hip. Exercise training is a natural mode of mechanical loading to make bone more robust. Exercise-induced adaptation of cortical bone along the femoral neck has been previously demonstrated. Read More

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http://dx.doi.org/10.1016/j.jbiomech.2018.05.037DOI Listing
July 2018
17 Reads

Arthroscopic Management for Acetabular Rim Stress Fracture and Osteochondritis Dissecans in the Athlete With Hip Dysplasia.

Arthrosc Tech 2018 May 23;7(5):e533-e539. Epub 2018 Apr 23.

Department of Orthopaedic Surgery, the University of Occupational and Environmental Health, Fukuoka, Japan.

Intra-articular lesions are common in patients with acetabular hip dysplasia. Rim stress fractures (RSFs) have also been described in patients with acetabular hip dysplasia. This lesion is believed to be a result of an unfused secondary ossification center or a stress fracture that could be caused by repetitive impingement of an abnormal-shaped femoral head-neck junction. Read More

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http://dx.doi.org/10.1016/j.eats.2018.01.007DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5984351PMC
May 2018
6 Reads

Biomechanical analysis of supra-acetabular insufficiency fracture using finite element analysis.

J Orthop Sci 2018 Sep 14;23(5):825-833. Epub 2018 Jun 14.

Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.

Background: Supra-acetabular insufficiency fractures (SAIFs) occur in the upper acetabulum and are rare compared with insufficiency sacral, femoral head, or ischial fractures. However, SAIFs are known to occur in low grade trauma, and the underlying mechanism is still remained unclear.

Methods: We performed biomechanical analysis using finite element analysis to clarify the mechanisms underlying the development of SAIFs. Read More

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http://dx.doi.org/10.1016/j.jos.2018.04.005DOI Listing
September 2018
2 Reads

Dynamic finite element analysis of implants for femoral neck fractures simulating walking.

J Orthop Surg (Hong Kong) 2018 May-Aug;26(2):2309499018777899

1 Department of Orthopedics, Konan Hospital, Kobe, Japan.

Background: To examine postoperative complications for osteosynthesizing femoral neck fractures (Pauwels III), biomechanical analysis should be conducted under dynamic conditions simulating for walking, not static conditions. Among the two main aims of this study, one is to pioneer the technique of dynamic finite element (FE) analysis, and the other is to compare stress distribution between two implants during walking.

Materials And Methods: First, we performed an inverse dynamic analysis with optimization method using a musculoskeletal model to calculate the inter-segmental and muscular forces during walking. Read More

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http://dx.doi.org/10.1177/2309499018777899DOI Listing
June 2018
3 Reads

Bone microarchitecture, biomechanical properties, and advanced glycation end-products in the proximal femur of adults with type 2 diabetes.

Bone 2018 Sep 30;114:32-39. Epub 2018 May 30.

Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA; Department of Orthopedic Surgery, Harvard Medical School, Boston, MA 02215, USA. Electronic address:

Skeletal fragility is a major complication of type 2 diabetes mellitus (T2D), but there is a poor understanding of mechanisms underlying T2D skeletal fragility. The increased fracture risk has been suggested to result from deteriorated bone microarchitecture or poor bone quality due to accumulation of advanced glycation end-products (AGEs). We conducted a clinical study to determine whether: 1) bone microarchitecture, AGEs, and bone biomechanical properties are altered in T2D bone, 2) bone AGEs are related to bone biomechanical properties, and 3) serum AGE levels reflect those in bone. Read More

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http://dx.doi.org/10.1016/j.bone.2018.05.030DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6141002PMC
September 2018
24 Reads

Femoral neck cortical bone in female and male hip fracture cases: Differential contrasts in cortical width and sub-periosteal porosity in 112 cases and controls.

Bone 2018 Sep 25;114:81-89. Epub 2018 May 25.

NIHR Biomedical Research Centre, Institute of Musculoskeletal Sciences, Nuffield Orthopaedic Centre, Oxford OX3 7LD, UK. Electronic address:

Objectives: To quantitate differences between cases of hip fracture and controls in cortical width around the mid-femoral neck in men and women.

Methods: Over 5 years, 64 (14 male) participants over age 55 (mean 79) years, who had never taken bone-active drugs and suffered intra-capsular hip fracture treated by arthroplasty, donated their routinely discarded distal intra-capsular femoral neck bone for histomorphometry. After embedding, complete femoral neck cross sections from the cut surface near the narrowest part of the neck were stained with von Kossa and cortical width was measured radially every 5 degrees of arc. Read More

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http://dx.doi.org/10.1016/j.bone.2018.05.027DOI Listing
September 2018
4 Reads

Management of Pediatric Femoral Neck Fracture.

J Am Acad Orthop Surg 2018 Jun;26(12):411-419

From the Department of Orthopaedic Surgery, University of California, San Francisco, CA.

In the pediatric population, femoral neck fracture is a relatively uncommon injury with a high complication rate, despite appropriate diagnosis and management. The anatomy and blood supply of the proximal femur in the skeletally immature patient differs from that in the adult patient. Generally, these fractures result from high-energy trauma and are categorized using the Delbet classification system. Read More

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http://dx.doi.org/10.5435/JAAOS-D-16-00362DOI Listing
June 2018
4 Reads

Femoral neck stress fracture in a young female recruit: case report.

SICOT J 2018 18;4:16. Epub 2018 May 18.

Centro Hospitalar do Porto, Hospital de Santo António, Largo Professor Abel Salazar, 4099-001 Porto, Portugal.

Introduction: Femoral neck stress fractures are uncommon and depending on their location, can be at high risk for non-union and significant morbidity.  Their prevalence is higher among runners and military recruits, and women seem to be at higher risk.

Methods: A 27-year-old female, who was enrolled in military recruit, reported left side groin pain after a strenuous running exercise. Read More

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http://dx.doi.org/10.1051/sicotj/2018011DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5958626PMC
May 2018
8 Reads

Effect of pelvis impact angle on stresses at the femoral neck during falls.

J Biomech 2018 Jun 16;74:41-49. Epub 2018 Apr 16.

Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada.

Improved understanding is required of how the mechanics of the fall affect hip fracture risk. We used a hip impact simulator to determine how peak stresses at the femoral neck were affected by pelvis impact angle, hip abductor muscle force, and use of a wearable hip protector. We simulated falls from standing (2 m/s impact velocity) involving initial hip abductor muscle forces of 700 or 300 N. Read More

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http://dx.doi.org/10.1016/j.jbiomech.2018.04.015DOI Listing
June 2018
2 Reads

The influence of osteoporotic bone structures of the pelvic-hip complex on stress distribution under impact load.

Acta Bioeng Biomech 2018 ;20(1):29-38

Department of Biomedical Engineering, Faculty of Mechanical Engineering, University of Zielona Góra, Zielona Góra, Poland.

Purpose: The aim of this study was to determine the effect of bone mineral density (BMD) on the stress distribution in pelvic-hip complex (PHC) model which included bone structures and soft tissues. Bone mass changes in osteoporosis and osteopenia were considered in this analysis. In addition, the relations between force direction and stress distribution causing PHC fractures were determined. Read More

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September 2018
3 Reads

Ranking of osteogenic potential of physical exercises in postmenopausal women based on femoral neck strains.

PLoS One 2018 4;13(4):e0195463. Epub 2018 Apr 4.

Human Movement Biomechanics Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium.

The current study aimed to assess the potential of different exercises triggering an osteogenic response at the femoral neck in a group of postmenopausal women. The osteogenic potential was determined by ranking the peak hip contact forces (HCFs) and consequent peak tensile and compressive strains at the superior and inferior part of the femoral neck during activities such as (fast) walking, running and resistance training exercises. Results indicate that fast walking (5-6 km/h) running and hopping induced significantly higher strains at the femoral neck than walking at 4 km/h which is considered a baseline exercise for bone preservation. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0195463PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5884624PMC
July 2018
3 Reads

Femoral Neck Stress Fracture in a Female Runner.

J Orthop Sports Phys Ther 2018 Apr;48(4):343

A 23-year-old woman was referred to physical therapy by her primary care physician for a 4-week history of right groin pain that had progressively worsened while training for a half-marathon. Before the physical therapy referral, the primary care physician ordered radiography of the right hip, which was unremarkable for fracture. Following examination, the physical therapist suspected osseous or soft tissue abnormality and requested that the primary care physician order magnetic resonance imaging without contrast, which revealed a femoral neck stress fracture. Read More

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http://dx.doi.org/10.2519/jospt.2018.7479DOI Listing
April 2018
13 Reads

Total Hip Arthroplasty by the Direct Anterior Approach Using a Neck-preserving Stem: Safety, efficacy and learning curve.

Indian J Orthop 2018 Mar-Apr;52(2):124-132

Department of Research, School of Medicine, University of Notre Dame, Fremantle, New South Wales, Australia.

Background: The concept of femoral neck preservation in total hip replacement (THR) was introduced in 1993. It is postulated that retaining cortical bone of the femoral neck offers triplanar stability, uniform stress distribution, and accommodates physiological anteversion. However, data on safety, efficacy and learning curve are lacking. Read More

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http://dx.doi.org/10.4103/ortho.IJOrtho_314_16DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5858205PMC
March 2018
8 Reads

Overuse Injuries Among Female Combat Warriors in the Israeli Defense Forces: A Cross-sectional Study.

Mil Med 2018 Nov;183(11-12):e610-e616

General Surgeon Headquarters, IDF Medical Forces Headquarters, 1 Aharon Kazir st., Ramat-Gan, Israel.

Introduction: Integration of females in combat units poses a unique challenge for army commanders around the world. The purpose of this study is to provide a detailed up-to-date situation report regarding overuse injuries among combat female warriors in the IDF (Israeli Defense Forces) in order to enable evidence-based decision-making, prevention policy, and further research of this highly significant military public health issue.

Methods: A cross-sectional descriptive study was conducted including 2,519 females recruited to combat duties during the year of 2013. Read More

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http://dx.doi.org/10.1093/milmed/usx238DOI Listing
November 2018
7 Reads

Comparison of femoral strength and fracture risk index derived from DXA-based finite element analysis for stratifying hip fracture risk: A cross-sectional study.

Bone 2018 05 8;110:386-391. Epub 2018 Mar 8.

Department of Community Health Sciences, University of Manitoba, Manitoba, Canada.

Background: Dual-energy X-ray absorptiometry (DXA)-based finite element analysis (FEA) has been studied for assessment of hip fracture risk. Femoral strength (FS) is the maximum force that the femur can sustain before its weakest region reaches the yielding limit. Fracture risk index (FRI), which also considers subject-specific impact force, is defined as the ratio of von Mises stress induced by a sideways fall to the bone yield stress over the proximal femur. Read More

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http://dx.doi.org/10.1016/j.bone.2018.03.005DOI Listing
May 2018
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Analysis of the Impact of Configuration of the Stabilisation System for Femoral Diaphyseal Fractures on the State of Stresses and Displacements.

Appl Bionics Biomech 2018 8;2018:8150568. Epub 2018 Jan 8.

Orthopaedic and Trauma Department, Dr A. Sokołowski Specialist Hospital, Wałbrzych, Poland.

Introduction: The treatment of femoral diaphyseal fractures by intramedullary nailing has become a common procedure in orthopaedic surgery. The purpose of this numerical simulation was to present how the changes in configuration of the stabilisation system can affect the stress and displacement state in the bone tissue and implanted device.

Material And Methods: The numerical comparison of the stabilisation variants for the type 32-A2 femoral diaphyseal fracture (according to the AO classification) performed by using the Charfix2 (ChM®) anatomical nail locked in a number of chosen ways. Read More

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http://dx.doi.org/10.1155/2018/8150568DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5817352PMC
January 2018
2 Reads

Effects of ulinastatin on inflammatory response and cognitive function after hip arthroplasty for the elderly patients with femoral neck fracture.

Eur Rev Med Pharmacol Sci 2018 Feb;22(4):1126-1132

Department of Orthopedics, the Affiliated Jiangyin Hospital of Southeast University Medical School, Jiangyin, China.

Objective: To investigate the effects of ulinastatin on inflammatory response and cognitive function after hip arthroplasty for the elderly patients with femoral neck fracture.

Patients And Methods: A total of 80 patients with femoral neck fracture receiving hip arthroplasty in our hospital from August 2016 to February 2017 were selected and divided into observation group (n=40) and control group (n=40) using a random number table. The control group was treated with hip arthroplasty and symptomatic and supportive treatment after operation, while the observation group was treated with ulinastatin based on the treatment means of control group. Read More

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http://dx.doi.org/10.26355/eurrev_201802_14401DOI Listing
February 2018
9 Reads

[Effect of hip fracture at different sites in elderly patients on prognosis].

Zhongguo Gu Shang 2017 Oct;30(10):906-910

General Hospital of PLA Army, Beijing 100700, China;

Objective: To determine the effect of site of fracture on the prognosis for patients of elderly hip fracture.

Methods: From January 2012 to December 2014, 667 patients with hip fractures were divided into femoral neck fracture group and intertrochanteric fracture group according to the site of fracture. There were 304 cases of intertrochanteric fracture, including 96 males and 208 females, with an average age of (80. Read More

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http://dx.doi.org/10.3969/j.issn.1003-0034.2017.10.006DOI Listing
October 2017
5 Reads

Femoral Neck Stress Injuries: Analysis of 156 Cases in a U.S. Military Population and Proposal of a New MRI Classification System.

AJR Am J Roentgenol 2018 Mar 16;210(3):601-607. Epub 2018 Jan 16.

4 Department of Orthopedics, Martin Army Community Hospital, Fort Benning, GA.

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. Read More

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http://dx.doi.org/10.2214/AJR.17.18639DOI Listing
March 2018
6 Reads

Femoral Neck Stress in Older Adults During Stair Ascent and Descent.

J Appl Biomech 2018 Jun 11;34(3):191-198. Epub 2018 Jun 11.

1 Iowa State University.

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 y). Motion analysis and inverse dynamics were combined with musculoskeletal modeling and optimization, then used as input to an elliptical femoral neck cross-sectional model to estimate femoral neck stress. Read More

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http://dx.doi.org/10.1123/jab.2017-0122DOI Listing
June 2018
7 Reads

Clinical hip fracture is accompanied by compression induced failure in the superior cortex of the femoral neck.

Bone 2018 03 22;108:121-131. Epub 2017 Dec 22.

Department of Materials Engineering, University of British Columbia, Vancouver, BC, Canada; Centre for Hip Health and Mobility, Vancouver, BC, Canada. Electronic address:

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. Read More

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http://dx.doi.org/10.1016/j.bone.2017.12.020DOI Listing
March 2018
10 Reads

Treatments to Prevent Bone Loss in Functional Hypothalamic Amenorrhea: A Systematic Review and Meta-Analysis.

J Endocr Soc 2017 May 26;1(5):500-511. Epub 2017 Apr 26.

Evidence-based Practice Center, Mayo Clinic, Rochester, Minnesota 55905.

Objective: We conducted a systematic review and meta-analysis of studies that evaluated the effect of hormonal therapy [estrogen therapy including oral contraceptive pills (OCP)] and bisphosphonates in preventing bone loss in patients with functional hypothalamic amenorrhea (FHA).

Methods: We searched several electronic databases for controlled and noncontrolled studies that enrolled females of any age presenting with FHA (including athletic, weight loss, and stress-associated amenorrhea/oligomenorrhea) through 9 January 2017. The outcomes of interest were fractures and bone mineral density (BMD). Read More

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http://dx.doi.org/10.1210/js.2017-00102DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5686767PMC
May 2017
6 Reads

Bilateral Simultaneous Femoral Neck Stress Fracture Despite Clinical Recovery from Anorexia Nervosa: A Case Report.

JBJS Case Connect 2017 Jan-Mar;7(1):e12

1Centre Hospitalier EpiCURA, Site Baudour, Baudour, Belgium.

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. Read More

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http://dx.doi.org/10.2106/JBJS.CC.16.00047DOI Listing
July 2018
8 Reads