1,055 results match your criteria Femoral Neck Stress Fracture


Selenium: A Trace Element for a Healthy Skeleton - A Narrative Review.

Endocr Metab Immune Disord Drug Targets 2020 Jun 27. Epub 2020 Jun 27.

Istituto Auxologico Italiano, IRCCS, Unit for Bone Metabolism Diseases and Diabetes & Lab of Endocrine and Metabolic Research, Milan. Italy.

Inadequate serum selenium levels may delay the growth and the physiological changes in bone metabolism. In humans, reduced serum selenium concentrations are associated with both increased bone turnover and reduced bone mineral density. Moreover, a reduced nutritional intake of selenium may lead to an increased risk of bone disease. Read More

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http://dx.doi.org/10.2174/1871530320666200628030913DOI Listing

Atypical femoral neck fracture after prolonged bisphosphonate therapy.

J Pathol Transl Med 2020 Jun 29. Epub 2020 Jun 29.

Department of Orthopaedic Surgery, Konyang Unversity Hospital, Daejeon, Korea.

Of the drugs developed to prevent and treat osteoporosis, bisphosphonate has played a very important role in preventing osteoporotic fractures. However, case reports describing atypical femoral fractures in patients using long-term bisphosphonates have emerged. The majority of atypical femur fractures occurs in the lateral aspect of the subtrochanteric or femur diaphysis, which is explained by accumulation of tensile stress in these areas. Read More

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http://dx.doi.org/10.4132/jptm.2020.05.14DOI Listing

Internal Fixation of Pauwels Type-3 Undisplaced-incomplete Insufficiency Femoral Neck Fractures with Cephalomedullary Nails.

Hip Pelvis 2020 Jun 15;32(2):105-111. Epub 2020 Jun 15.

Department of Orthopedic Surgery, The Catholic University of Korea, St. Vincent Hospital, Suwon, Korea.

Femoral neck stress fractures are rare and when treating are difficult to achieve favorable outcomes. This study characterizes outcomes associated with the use of cephalomedullary nails for fixation of Pauwels type-3 vertical femoral neck undisplaced-incomplete insufficiency fractures. Four consecutive patients with a Pauwels type-3 vertical femoral neck tensile insufficiency fracture from 2016 to 2018 were reviewed. Read More

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http://dx.doi.org/10.5371/hp.2020.32.2.105DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7295618PMC

[Bone remodeling after total hip arthroplasty with anatomic medullary locking prosthesis and its long-term effectiveness].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2020 Jun;34(6):689-695

Department of Orthopedics, First Affiliated Hospital, Soochow University, Suzhou Jiangsu, 215006, P.R.China.

Objective: To investigate the femoral bone remodeling and long-term effectiveness of total hip arthroplasty (THA) with anatomic medullary locking (AML) prosthesis.

Methods: The clinical data of 24 cases (26 hips) who were treated with THA with AML prosthesis between November 1997 and January 2003 were retrospectively analyzed. There were 12 males and 12 females with an age of 32-69 years (mean, 53. Read More

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http://dx.doi.org/10.7507/1002-1892.201910033DOI Listing

High rates of implant fracture of a generic polished tapered femoral stem.

Hip Int 2020 May 27:1120700020925739. Epub 2020 May 27.

Orthopaedic Department, University Hospital Leuven, Leuven, Belgium.

Objectives: Cemented polished tapered stems have demonstrated excellent long-term outcomes. Based on this concept, many generic tapered stems have been released into the market. The aim of this study was to evaluate implant-related complications of 1 specific stem design. Read More

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http://dx.doi.org/10.1177/1120700020925739DOI Listing

Outcomes Following the Urgent Surgical Management of Displaced Femoral Neck Stress Fractures.

J Orthop Trauma 2020 May 8. Epub 2020 May 8.

Naval Medical Center San Diego.

Objectives: To review the clinical course, complication rates, and mid-term functional outcomes associated with the treatment of displaced femoral neck stress fractures (FNSFs) DESIGN:: Retrospective Case Series SETTING:: Military Tertiary Referral Center PATIENTS:: Twenty-one operatively treated displaced FNSFs between 2002 and 2015.

Intervention: Urgent reduction and fixation was performed. If nonunion developed, an intertrochanteric osteotomy was performed. Read More

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http://dx.doi.org/10.1097/BOT.0000000000001810DOI Listing

[Femoral neck stress fractures and femoroacetabular impingement : A retrospective case study and literature review].

Orthopade 2020 Apr 28. Epub 2020 Apr 28.

UniversitätsCentrum für Orthopädie & Unfallchirurgie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland.

Background: Femoroacetabular impingement (FAI) can lead to morphologic damage of both the acetabulum and the femoral neck. Recent reports have found an association between impingement deformities and the development of femoral neck stress fractures. The aim of this study was to report a series of patients with these findings and to update the current evidence on the topic. Read More

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http://dx.doi.org/10.1007/s00132-020-03916-6DOI Listing

Bilateral concomitant femoral neck stress fracture in a sedentary patient with anorexia nervosa.

Trauma Case Rep 2020 Jun 16;27:100302. Epub 2020 Apr 16.

Buenos Aires British Hospital, Argentina.

A 27 years old sedentary woman presented bilateral femoral neck stress fractures after having clinically recovered from anorexia nervosa and was treated with bilateral internal fixation.

Conclusion: Although light exercise is usually considered after recovery from anorexia nervosa to improve bone quality, this case of a patient suggests that weight gain, per se, could increase the stress fracture risk. Because of the physiological and psychological characteristics, these patients should be treated with a multi-disciplinary approach. Read More

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http://dx.doi.org/10.1016/j.tcr.2020.100302DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7162967PMC

Failed Internal Fixation in Bilateral Femoral Neck Stress Fracture Salvaged with Total Hip Arthroplasty: A Report of Two Cases with Literature Review.

Indian J Orthop 2020 Feb 31;54(1):83-86. Epub 2020 Jan 31.

Department of Orthopaedics, Ganga Hospital, 313, Mettupalayam road, Coimbatore, 641043 Tamil Nadu India.

Bilateral Femoral neck stress fractures (FNSFs) are rare without any underlying metabolic disease or repeated strenuous activities like athletes or military recruits. It constitutes about 5-8% of all stress fractures. Treatment options are still controversial. Read More

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http://dx.doi.org/10.1007/s43465-019-00030-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7093610PMC
February 2020

Complications of implant removal after healed hip fractures.

Arch Orthop Trauma Surg 2020 Apr 6. Epub 2020 Apr 6.

Department of Surgery, Gelre Hospitals, Albert Schweitzerlaan 31, 7334 DZ, Apeldoorn, The Netherlands.

Introduction: Osteosynthesis of pertrochanteric fractures is one of the most frequently performed procedures in orthopaedic trauma care. Auto-dynamization during fracture healing can lead to lateralization of the screw or blade. This can cause debilitating complaints, which sometimes necessitate the removal of the screw or blade. Read More

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http://dx.doi.org/10.1007/s00402-020-03435-1DOI Listing

Bilateral calcaneal insufficiency fractures due to chronic carbamazepine use for trigeminal neuralgia: A case report.

Niger J Clin Pract 2020 Apr;23(4):574-576

Department of Orthopaedics and Traumatology, Rebuplic of Turkey Ministry of Health Antalya Education and Research Hospital, Muratpasa, Antalya, Turkey.

Stress fractures of calcaneus are uncommon cause of heel pain. Stress fractures could be seen in risc groups such as metabolic diseases/medications causing poor bone quality and exposing repetitive microtrauma. Anti-epileptic drug (AED) use is related with poor bone quality and increased fracture risc. Read More

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http://dx.doi.org/10.4103/njcp.njcp_515_18DOI Listing

Stressfraktur i lårhalsen.

Tidsskr Nor Laegeforen 2020 Mar 22;140(5). Epub 2020 Mar 22.

Femoral neck stress fracture is a rare occurrence but can arise in athletes and people who exercise, due to repeated stress on the lower extremities. Hip and groin pain and clinical findings can raise suspicion, and MRI examination is the gold standard for determining stress fracture. The injury is treated conservatively or surgically, depending on anatomical location and whether or not the fracture is stable. Read More

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http://dx.doi.org/10.4045/tidsskr.19.0201DOI Listing

Assessment of the multifactorial causes of atypical femoral fractures using a novel multiscale finite element approach.

Bone 2020 Jun 12;135:115318. Epub 2020 Mar 12.

Department of Mechanical Engineering, Villanova University, Villanova, PA, USA. Electronic address:

Atypical femoral fracture (AFF), which is a low energy fracture in the subtrochanteric or diaphysis region of the femur, has multifactorial causes that span macro- to microscale mechanisms including femoral geometry, cortical bone composition and structure. However, the extent of individual and combined influence of these factors on AFF is still not well understood. As a result, the aim of this study is to develop a multiscale fracture mechanics-based finite element modeling framework that is capable of quantifying the individual and combined influence of macroscale femoral geometrical properties as well as cortical bone microscale material properties and structure on AFF. Read More

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http://dx.doi.org/10.1016/j.bone.2020.115318DOI Listing

Hybrid triad provides fracture plane stability in a computational model of a Pauwels Type III hip fracture.

Comput Methods Biomech Biomed Engin 2020 Mar 11:1-8. Epub 2020 Mar 11.

Orthopaedic Surgery, McLaren-Flint, Flint, MI, USA.

The study utilized finite element method to determine displacements and stresses in a set of Pauwels Type III femoral neck fractures repaired using 3 techniques (cannulated screws (Triad), sliding hip screw (SHS), and a Hybrid (SHS + cannulated screws). The research found that shear displacement doubled between the 65° and 75° fracture angles regardless of fixation construct. The SHS alone was the least stable construct, with highest construct stresses and shear displacement along the fracture plane. Read More

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http://dx.doi.org/10.1080/10255842.2020.1738404DOI Listing

Finite element analysis of different screw constructs in the treatment of unstable femoral neck fractures.

Injury 2020 Apr 17;51(4):995-1003. Epub 2020 Feb 17.

Department of Orthopaedics, The Third People's Hospital of Qingdao, No. 29 Yongping Road, Qingdao 266041, PR China. Electronic address:

Objectives: In the present study, we evaluated the mechanical outcome of different configurations formed by partially threaded screws (PTS) alone or combined screws consisting of PTS and fully threaded screws (FTS) in the treatment of unstable femoral neck fracture.

Methods: The Pauwels type III unstable femoral fracture and screw models of PTS and FTS were created in 3-matic software and UG-NX software respectively. We assembled the different screw fixation types to the fracture model separately to form the fixation models. Read More

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http://dx.doi.org/10.1016/j.injury.2020.02.075DOI Listing

Salvage of failed in-situ pinning in severe unstable slipped capital femoral physis by surgical dislocation and capital realignment.

J Clin Orthop Trauma 2020 Mar-Apr;11(2):217-221. Epub 2018 Sep 7.

Centre for Hip Preservation, Sheffield Children's Hospital NHS Foundation Trust, Sheffield, S10 2TH, UK.

Aims: We describe surgical dislocation with capital realignment as an option for management of failed in-situ pinning in children with severe unstable slipped capital femoral physis.

Patients And Methods: A retrospective data collection from our hospital hip database retrieved 7 patients with severe unstable slipped capital femoral physis who had failed in-situ pinning with severe deformity and grossly restricted movements. The failure of pinning in-situ was due to slip progression with inadequate screw purchase in four patients, stress fracture of the femoral neck in one patient, and screw head impingement in two patients. Read More

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http://dx.doi.org/10.1016/j.jcot.2018.09.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7026614PMC
September 2018

Bilateral Stress Fractures of the Femoral Neck after Total Knee Arthroplasty: Importance of Early Diagnosis.

Case Rep Orthop 2020 6;2020:3091693. Epub 2020 Feb 6.

Department of Orthopedics Surgery, Toyama Prefectural Central Hospital, Japan.

Unilateral stress fracture of the femoral neck following total knee arthroplasty (TKA) is a rare complication; only 21 cases are described in English literature so far. Bilateral stress fractures of the femoral neck occurring simultaneously following a bilateral TKA have been seen in only 2 cases till now. We report a patient suffering from rheumatoid arthritis of both knees, who was treated with bilateral TKA. Read More

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http://dx.doi.org/10.1155/2020/3091693DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7026719PMC
February 2020

High-purity weight-bearing magnesium screw: Translational application in the healing of femoral neck fracture.

Biomaterials 2020 Apr 30;238:119829. Epub 2020 Jan 30.

Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China; Department of Biomedical Engineering, Faculty of Electronic Information and Electronical Engineering, Dalian University of Technology, Dalian, China. Electronic address:

Magnesium (Mg)-based metals can be used as next-generation fracture internal fixation devices due to their specific properties. We used vascularized bone grafting fixed by degradable pure Mg screws and obtained satisfactory results in the treatment of osteonecrosis of the femoral head. However, the mechanical properties of these screws make them weaker than those made of traditional metals. Read More

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http://dx.doi.org/10.1016/j.biomaterials.2020.119829DOI Listing

Finite element analysis of a new plate for Pauwels type III femoral neck fractures.

J Int Med Res 2020 Feb;48(2):300060520903669

Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.

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http://dx.doi.org/10.1177/0300060520903669DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7111023PMC
February 2020

Mid-term results of total hip arthroplasty using a novel uncemented short femoral stem with metaphyso-diaphyseal fixation.

Hip Int 2020 Jan 30:1120700020903451. Epub 2020 Jan 30.

Department of Surgery, CIUSSS-de-L'Est-de-L'Ile-de-Montréal, Hospital Maisonneuve-Rosemont, Montreal, Quebec, Canada.

Purpose: Short stems were developed with the promise of providing easier implantation, facilitating revision, reducing thigh pain and proximal stress shielding. The aim of this study is to present the mid-term clinical results of a titanium short stem with modular neck.

Methods: This is a prospective case series of 144 THAs performed on a series of 131 patients using the PROFEMUR Preserve Femoral Stem (MicroPort Orthopedics, Arlington, TN, USA). Read More

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http://dx.doi.org/10.1177/1120700020903451DOI Listing
January 2020

Consensus recommendations on the classification, definition and diagnostic criteria of hip-related pain in young and middle-aged active adults from the International Hip-related Pain Research Network, Zurich 2018.

Br J Sports Med 2020 Jun 20;54(11):631-641. Epub 2020 Jan 20.

Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.

There is no agreement on how to classify, define or diagnose hip-related pain-a common cause of hip and groin pain in young and middle-aged active adults. This complicates the work of clinicians and researchers. The International Hip-related Pain Research Network consensus group met in November 2018 in Zurich aiming to make recommendations on how to classify, define and diagnose hip disease in young and middle-aged active adults with hip-related pain as the main symptom. Read More

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http://dx.doi.org/10.1136/bjsports-2019-101453DOI Listing

Total Hip Arthroplasty for Bilateral Femoral Neck Stress Fracture: A Case Report and Review of the Literature.

Adv Orthop 2019 14;2019:2720736. Epub 2019 Dec 14.

Orthopedic Surgery, Department of Surgery, Hôpital Sacré-Cœur de Montréal, 5400 Boul. Gouin O., Montréal, Québec H4J 1C5, Canada.

Femoral neck stress fractures (FNSFs) can be treated conservatively or surgically, depending on initial displacement and patient condition. Surgical treatment options include internal fixation, with or without valgus osteotomy or hip arthroplasty, either hemi or total. The latter is mainly considered when initial treatment fails. Read More

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http://dx.doi.org/10.1155/2019/2720736DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6942706PMC
December 2019

Effect of cortical bone micro-structure in fragility fracture patients on lamellar stress.

J Biomech 2020 02 24;100:109596. Epub 2019 Dec 24.

Department of Radiological Sciences, Department of Biomedical Engineering, and Department of Mechanical and Aerospace Engineering, University of California, Irvine, United States. Electronic address:

This work investigates how changes in cortical bone microstructure alter the risk of fragility fractures. The secondary osteons of non-osteoporotic (by DXA) women with fragility fractures have reduced lamellar width and greater areas of birefringent brightness in transverse sections, a pathological condition. We used hierarchical finite element (FE) models of the proximal femur of two women aged 67 and 88 (younger and older) during one-legged stance. Read More

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http://dx.doi.org/10.1016/j.jbiomech.2019.109596DOI Listing
February 2020

Case Report and Literature Review of Periprosthetic Atypical Femoral Fractures After Total Hip Arthroplasty.

J UOEH 2019 ;41(4):409-416

Department of Orthopaedic Surgery, School of Medicine, University Hospital of Occupational and Environmental Health, Japan.

We describe a case of periprosthetic femoral fracture with 5 major features of an atypical femoral fracture (AFF) and localized cortical thickening at the fracture site, which is characteristic of an AFF. An 81-year-old female patient had undergone cementless total hip arthroplasty for a right femoral neck fracture at the age of 66, and had been taking oral alendronate since then. At the age of 79, she developed spontaneous right thigh pain. Read More

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http://dx.doi.org/10.7888/juoeh.41.409DOI Listing
January 2019

Treatment of Femur Neck Fracture in Children with Osteogenesis Imperfecta: Two Case Reports.

JBJS Case Connect 2019 Dec;9(4):e0449

Division of Paediatric Orthopaedic Surgery, Shriners Hospital for Children, Montreal, QC, Canada.

Case: We present 2 cases of femoral neck fracture (FNF) in patients with osteogenesis imperfecta (OI) with a previously placed intramedullary nail (IMN). Case 1: A 12-year-old girl who sustained a right FNF after spine surgery. Case 2: An 18-year-old boy who sustained a right FNF after IMN of the left side. Read More

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http://dx.doi.org/10.2106/JBJS.CC.18.00449DOI Listing
December 2019

Outcome of intramedullary nailing treatment for intertrochanteric femoral fractures.

J Orthop Surg Res 2019 Nov 12;14(1):360. Epub 2019 Nov 12.

The CORE Institute, Phoenix, AZ, USA.

Introduction: The OTA/AO type 31 A3 intertrochanteric fracture has a transverse or reverse oblique fracture at the lesser trochanteric level, which accentuates the varus compressive stress in the region of the fracture and the implant. Intramedullary fixation using different types of nails is commonly preferred. The purpose of this study is to evaluate intertrochanteric femoral fractures with intramedullary nail treatment in regard to surgical procedure, complications, and clinical outcomes. Read More

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http://dx.doi.org/10.1186/s13018-019-1431-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6852997PMC
November 2019

Computational modelling of forces acting on the femur in acetabular fractures: A finite element analysis study.

J Orthop 2019 Nov-Dec;16(6):603-618. Epub 2019 Jun 4.

Consultant Surgeon in Trauma and Orthopaedics, Tallaght Hospital, Dublin 24, Ireland.

Background: The rising incidence of acetabular fractures in the elderly presents an increasing surgical challenge due to patient co-morbidities, complex fracture patterns' and osteoporotic bone. Of interest in this study are those of the quadrilateral plate, which are more common in elderly patients with osteoporosis. Following such injuries, the weight-bearing surface of the femoral head moves medially. Read More

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http://dx.doi.org/10.1016/j.jor.2019.06.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6831856PMC

Bilateral adrenal hemorrhage after hip arthroplasty: an initially misdiagnosed case.

BMC Urol 2019 Nov 4;19(1):106. Epub 2019 Nov 4.

Department of urology, Peking University Shougang Hospital, Peking University Health Science Center, Beijing, 100144, China.

Background: Bilateral adrenal hemorrhage (BAH) is a rare but potentially catastrophic condition. Its clinical manifestation is often non-specific and sometimes difficult to be diagnosed in time. A 57-year-old woman, who presented with severe fatigue, nausea and vomiting after left hip arthroplasty due to her femoral neck fracture in a local hospital, was transferred to our medical center. Read More

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http://dx.doi.org/10.1186/s12894-019-0536-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6829824PMC
November 2019
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A quantitative biomechanical study of positive buttress techniques for femoral neck fractures: a finite element analysis.

Chin Med J (Engl) 2019 Nov;132(21):2588-2593

Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China.

Background: Refractory femoral neck fractures cannot be anatomically reduced by closed traction reduction which may affect fracture healing. We evaluated the biomechanical effects of positive, negative, and anatomic reduction of various degrees of displacement in Pauwels I femoral neck fractures by a finite element analysis.

Methods: Five reduction models of Pauwels type I femoral neck fracture were established using the Mimics 17. Read More

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http://dx.doi.org/10.1097/CM9.0000000000000490DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6846255PMC
November 2019
1 Read

Femoral stem modularity.

Orthop Traumatol Surg Res 2020 02 14;106(1S):S35-S42. Epub 2019 Oct 14.

Service d'orthopédie-traumatologie, CHU d'Amiens, Site Sud, 80054 Amiens Cedex, France.

Femoral stem modularity in hip replacement was first developed to connect a ceramic head to the stem, then extended to metal heads using the Morse taper principle. Is it a good thing, or a necessary evil? It contributes to improving lower limb length and lateralization setting, at the cost of fairly rare complications such as dissociation and fretting corrosion, which can exceptionally lead to ARMD (Adverse Reaction to Metal Debris). Modular necks were later recommended, with a double Morse taper: cylindrical for the head junction, and more or less flattened for the stem. Read More

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http://dx.doi.org/10.1016/j.otsr.2019.05.019DOI Listing
February 2020
1 Read

Electrosurgery Induced Femoral Stem Fracture in Total Hip Arthroplasty: A Case Report.

JBJS Case Connect 2019 Dec;9(4):e0418

Division of Orthopaedics and Traumatology, Cantonal Hospital Winterthur, Winterthur, Switzerland.

Case: We present a case of a broken titanium alloy (Ti-6Al-7Nb) femoral stem 4 years after revision total hip arthroplasty (THA) (head exchange M to XL for instability). Material analysis showed a superficial anomaly on the superior neck surface caused by local melting with an electrosurgical knife. This lesion presumably acted as a stress riser and was the initiation site of a fatigue fracture, with typical features on the fracture surface. Read More

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http://dx.doi.org/10.2106/JBJS.CC.18.00418DOI Listing
December 2019
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Femoral Supracondylar Stress Fracture in an Adult Marathon Runner: A Case Report.

Curr Sports Med Rep 2019 Oct;18(10):355-357

Taipei Veterans General Hospital, Taipei City, TAIWAN.

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http://dx.doi.org/10.1249/JSR.0000000000000636DOI Listing
October 2019
1 Read

Unusual Bilateral Neck of Femur Stress Fracture in a Healthy, Non-athletic Individual - ACase Report and Literature Review.

J Orthop Case Rep 2019 ;9(2):90-93

Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.

Introduction: Stress fractures of the neck of femur are a rare injury mostly seen in athletes, military recruits, elderly patients, and patients with metabolic bone diseases. Such injury patterns are rare in otherwise healthy and non-athletic individuals. Bilateral presentation in such population is even rarer. Read More

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http://dx.doi.org/10.13107/jocr.2250-0685.1388DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6727459PMC
January 2019
1 Read

Potential bone fragility of mid-shaft atypical femoral fracture: Biomechanical analysis by a CT-based nonlinear finite element method.

Injury 2019 Nov 3;50(11):1876-1882. Epub 2019 Sep 3.

Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.

Introduction: The authors previously reported a CT-based nonlinear finite element analysis (nonlinear CT/FEA) model to investigate loading stress distribution in the femoral shaft of patients with atypical femoral fractures (AFFs). This showed that stress distribution, influenced primarily by femoral bowing, may determine the location of AFF. Here, we demonstrate the locational characteristics associated with AFFs in an Asian, specifically Japanese, population regarding bone strength. Read More

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http://dx.doi.org/10.1016/j.injury.2019.09.004DOI Listing
November 2019
4 Reads

Medial anatomical buttress plate in treating displaced femoral neck fracture a finite element analysis.

Injury 2019 Nov 19;50(11):1895-1900. Epub 2019 Aug 19.

Department of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China. Electronic address:

Background: Displaced femoral neck fractures in young adults are most likely to result from high energy trauma that causes a vertically-oriented shearing injury through the femoral neck. The optimal strategy for treatment of displaced femoral neck fractures remains an unsolved challenge in orthopedic surgery.

Methods: our group has previously designed a medial anatomical buttress plate (MABP) based on the analysis of the computed tomography (CT) data of anatomical structures derived from a large sample population. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00201383193049
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http://dx.doi.org/10.1016/j.injury.2019.08.024DOI Listing
November 2019
2 Reads

Bilateral femoral neck stress fractures in a high-performance young female runner.

BMJ Case Rep 2019 Aug 26;12(8). Epub 2019 Aug 26.

Department of Orthopaedic Surgery, American British Cowdray Medical Center, Ciudad de Mexico, Mexico.

A 16-year-old female patient showed up at the orthopaedics unit complaining of intolerable pain on her left hip. While being questioned and her clinical history written down, she shared that as part of her daily exercise routine, she ran 10 miles (16 km) daily at a speed of 9.5-10. Read More

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http://dx.doi.org/10.1136/bcr-2019-230900DOI Listing
August 2019
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A Periprosthetic Femoral Fracture with Characteristics of Atypical Femoral Fracture.

Case Rep Orthop 2019 16;2019:1275369. Epub 2019 Jul 16.

Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.

Although the definition of atypical femoral fracture (AFF) excludes periprosthetic femoral fracture (PFF), the number of reports about PFF with characteristics of AFF is increasing. We present the case of such a fracture in this report. An 87-year-old woman who underwent bipolar hip arthroplasty for a femoral neck fracture 38 months prior reported left thigh pain with no history of trauma. Read More

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http://dx.doi.org/10.1155/2019/1275369DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6664512PMC
July 2019
5 Reads

Stress fractures in military recruits: A prospective study for evaluation of incidence, patterns of injury and invalidments out of service.

Med J Armed Forces India 2019 Jul 23;75(3):330-334. Epub 2019 Feb 23.

Graded Specialist (Surgery), Military Hospital Jabalpur, MP, India.

Background: Stress fractures (SFs) occur because of repetitive submaximal stresses to the bone over a period of time. SFs cause an economic loss to the organization and to the individuals who get invalided out of army because of SFs. This study was conducted to determine the incidence, distribution, onset of SFs, and invalidment patterns due to SFs. Read More

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http://dx.doi.org/10.1016/j.mjafi.2018.09.006DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6676320PMC
July 2019
2 Reads

Morphological profile of atypical femoral fractures: age-related changes to the cross-sectional geometry of the diaphysis.

J Anat 2019 11 29;235(5):892-902. Epub 2019 Jul 29.

Department of Macroscopic Anatomy, Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan.

The use of bisphosphonates for osteoporosis patients has markedly decreased the incidence of femoral neck or trochanteric fractures. However, anti-osteoporosis drugs have been reported to increase the incidence of atypical femoral fractures, which involve stress fractures in the subtrochanteric region or the proximal diaphysis. In this study, the morphological characteristics of the cortical bone in human femoral diaphysis samples were analyzed from individuals who lived before bisphosphonate drugs were available in Japan. Read More

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http://dx.doi.org/10.1111/joa.13060DOI Listing
November 2019
4 Reads

Bilateral spontaneous simultaneous femoral neck occult fracture in a middle-aged man due to osteoporosis and vitamin D deficiency osteomalacia: A case report and literature review.

Int J Surg Case Rep 2019 28;60:358-362. Epub 2019 Jun 28.

Department of Orthopedic Surgery, Kanazawa Medical University, Japan.

Introduction: Bilateral stress fracture of the femoral neck is very rarely seen in healthy young patients who are neither athletes nor military recruits.

Presentation Of Case: The present report describes a 51-year-old male patient, not an athlete and with no previous history of disease, who developed bilateral stress fracture of the femoral neck without displacement.

Discussion: Simultaneous bilateral femoral neck fracture is a rare injury. Read More

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http://dx.doi.org/10.1016/j.ijscr.2019.06.058DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6616359PMC
June 2019
3 Reads

Osteomalacia in subtropical Auckland.

BMJ Case Rep 2019 Jul 8;12(7). Epub 2019 Jul 8.

Bone and Joint Research Group, Department of Medicine, University of Auckland, Auckland, New Zealand.

A 56-year-old man was referred with left-sided hip pain. MRI scans demonstrated an undisplaced stress fracture in the femoral neck and subchondral oedema within the femoral head. Bone densitometry showed T-scores of -2. Read More

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http://dx.doi.org/10.1136/bcr-2019-229657DOI Listing
July 2019
2 Reads

Psychosocial stress and bone loss among postmenopausal women: results from the Women's Health Initiative.

J Epidemiol Community Health 2019 09 9;73(9):888-892. Epub 2019 Jul 9.

Department of Epidemiology and Biostatistics, University of Arizona, Tucson, Arizona, USA.

Background: Bone loss is a major public health concern with large proportions of older women experiencing osteoporotic fractures. Previous research has established a relationship between psychosocial stressors and fractures. However, few studies have investigated bone loss as an intermediary in this relationship. Read More

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http://dx.doi.org/10.1136/jech-2019-212516DOI Listing
September 2019
6 Reads

Bilateral sequential femoral neck stress fractures in young adult with HIV infection on antiretroviral therapy: A case report.

World J Orthop 2019 Jun 18;10(6):247-254. Epub 2019 Jun 18.

Assistant Professor, Department of Orthopedics, Christian Medical College, Vellore, Vellore 632004, Tamil Nadu, India.

Background: Femoral neck stress fractures are rarely encountered among young adults and are often associated with either repetitive excessive loading or underlying bone pathology. Preliminary research has indicated human immunodeficiency virus (HIV)/antiretroviral therapy (ART) as predisposing agents to osteopenia and osteoporosis related complications. We report a case of HIV/ART induced insufficiency fracture in a resource limited setting in Central India. Read More

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http://dx.doi.org/10.5312/wjo.v10.i6.247DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6591698PMC
June 2019
16 Reads

Analysis of a Cementless Femoral Stem Neck Fracture Using Scanning Electron Microscopy and the Finite Element Method.

Case Rep Orthop 2019 7;2019:7204598. Epub 2019 May 7.

Department of Orthopaedic Surgery, Kumamoto Kinoh Hospital, Kumamoto, Japan.

Implant fracture is one of the rarest complications of total hip arthroplasty (THA). A 57-year-old woman experienced a fracture of the femoral stem (AHFIX Q, KYOCERA, Japan) about five years after THA. We examined the broken stem by digital microscopy, scanning electron microscopy, and finite element method. Read More

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http://dx.doi.org/10.1155/2019/7204598DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6530236PMC
May 2019
3 Reads

Finite element analyses for predicting anatomical neck fractures in the proximal humerus.

Clin Biomech (Bristol, Avon) 2019 08 24;68:114-121. Epub 2019 May 24.

School of Mechanical Engineering, The Iby and Aladar Fleischman Faculty of Engineering, Tel-Aviv University, Ramat-Aviv, Israel. Electronic address:

Background: Proximal humerus fractures which occur as a result of a fall on an outstretched arm are frequent among the elderly population. The necessity of stabilizing such fractures by surgical procedures is a controversial matter among surgeons. Validating a personalized FE analysis by ex-vivo experiments of humeri and mimicking such fractures by experiments is the first step along the path to determine the necessity of such surgeries. Read More

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http://dx.doi.org/10.1016/j.clinbiomech.2019.05.028DOI Listing
August 2019
2 Reads

Treatment of trauma-induced femoral head necrosis with biodegradable pure Mg screw-fixed pedicle iliac bone flap.

J Orthop Translat 2019 Apr 14;17:133-137. Epub 2019 Feb 14.

Department of Orthopaedics, Guangdong Provincial People's Hospital, Guangzhou, 510080, China.

Introduction: The avascular necrosis of the femoral head represents the death of bone tissue due to the lack of blood supply. The disease has a progressive evolution; it leads to femoral head collapse and severe arthritis when left untreated. The application of a pedicled bone flap graft is an effective treatment for femoral head necrosis. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S2214031X183023
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http://dx.doi.org/10.1016/j.jot.2019.01.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6551358PMC
April 2019
5 Reads

Image-based anatomical reconstruction and pharmaco-mediated bone remodeling model applied to a femur with subtrochanteric fracture: A subject-specific finite element study.

Med Eng Phys 2019 07 4;69:58-71. Epub 2019 Jun 4.

Grupo de Bioengenharia, Programa de Pós-Graduação em Métodos Numéricos em Engenharia, Universidade Federal do Paraná, Curitiba, Brazil; Departamento de Engenharia Ambiental, Universidade Federal do Paraná, Curitiba, Brazil.

Patient-specific finite element (FE) models are constructed in a way that boundary conditions, material and geometric FE models respect the unique characteristics of the patients, offering a more reliable and realistic structural analysis. This study presents an image-based construction process of a patient-specific FE model applied to a femur with a subtrochanteric fracture. Available procedures are systematized and described in greater depth aiming to investigate the difficulties and possibilities in the development of this type of model. Read More

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http://dx.doi.org/10.1016/j.medengphy.2019.05.005DOI Listing
July 2019
7 Reads

Accumulation of microdamage and low bone mass in the femoral head as a cause of subchondral insufficiency fracture in a patient with osteogenesis imperfecta.

J Bone Miner Metab 2019 Sep 11;37(5):768-772. Epub 2019 May 11.

Department of Orthopedic Surgery, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.

Subchondral insufficiency fractures of the femoral head are generally considered to be osteoporosis-related fragility fractures. There have been reports of microfractures being found in subchondral bone on pathological examination. However, the mechanism of these microfractures is not known. Read More

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http://dx.doi.org/10.1007/s00774-019-01006-yDOI Listing
September 2019
10 Reads

Correlation Between Reduction Quality of Femoral Neck Fracture and Femoral Head Necrosis Based on Biomechanics.

Orthop Surg 2019 Apr;11(2):318-324

Digital Orthopaedic Laboratories of the Orthopaedic Institute, Tianjin Hospital, Tianjin, China.

Objective: To investigate the biomechanical effects of reduction quality on patients after femoral neck fracture internal fixation.

Methods: The data of individual patients with femoral neck fractures were reviewed. Data for patients with simple unilateral femoral neck fractures whose reduction quality was evaluated as good by hip X-ray films after internal fixation were collected from January 2013 to January 2017. Read More

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http://dx.doi.org/10.1111/os.12458DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6594541PMC
April 2019
8 Reads

Effect of Parkinson's Disease on Hemiarthroplasty Outcomes After Femoral Neck Fractures.

J Arthroplasty 2019 Aug 29;34(8):1695-1699.e1. Epub 2019 Mar 29.

Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA.

Background: The purpose of this study was to evaluate the outcomes following hemiarthroplasty (HA) for femoral neck fractures (FNFs) in patients with Parkinson's disease (PD) compared with patients without PD.

Methods: This was a retrospective review utilizing the Nationwide Readmissions Database, a national database incorporating inpatient hospitalization information. Using the Nationwide Readmissions Database, patients who underwent HA for FNF between 2010-2014 were identified. Read More

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http://dx.doi.org/10.1016/j.arth.2019.03.055DOI Listing
August 2019
11 Reads