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Jones fracture

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https://www.readbyqxmd.com/read/29777283/-fractures-of-the-base-of-the-v-metatarsal-bone-current-concepts-revised
#1
REVIEW
S F Baumbach, W C Prall, M Braunstein, W Böcker, S Polzer, H Polzer
Fractures of the base of the fifth metatarsal bone are one of the most frequent fractures to the foot and ankle. Despite the high frequency and although a number of studies are now available, treatment frequently does not follow the available evidence. Among the reasons is the inconsistent terminology used and that the studies available are neglected. The aim of this review is to present the current classifications, the available treatment studies and to derive evidence-based treatment recommendations. The term "Jones fracture" has been used inconsistently for different fracture entities and should, therefore, not be used anymore...
May 17, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29765589/non-union-of-the-trapezium-rare-consequence-of-a-rare-injury
#2
Deepak Samson, Matthew Jones, Andrew Mahon
Fractures of the trapezium are rare and easily missed. As these injuries are often imperceptible on plain radiographs, diagnosis in the ED setting is challenging. We report a case of an isolated fracture of the trapezium which was picked up as a non-union 5 months after the injury following persistence of symptoms.
April 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29736964/novel-pls3-variants-in-x-linked-osteoporosis-exploring-bone-material-properties
#3
Meena Balasubramanian, Nadja Fratzl-Zelman, Rory O'Sullivan, Mary Bull, Nicola Fa Peel, Rebecca C Pollitt, Rebecca Jones, Elizabeth Milne, Kath Smith, Paul Roschger, Klaus Klaushofer, Nicholas J Bishop
BACKGROUND: Idiopathic Juvenile Osteoporosis (IJO) refers to significantly lower than expected bone mass manifesting in childhood with no identifiable aetiology. IJO classically presents in early pubertal period with multiple fractures including metaphyseal and vertebral crush fractures, and low bone-mass. METHODS: Here we describe two patients and provide information on their clinical phenotype, genotype and bone material analysis in one of the patients. RESULTS: Patient 1: 40-year old adult male diagnosed with IJO in childhood who re-presented with a hip fracture as an adult...
May 7, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29726844/an-atomic-scale-evaluation-of-the-fracture-toughness-of-silica-glass
#4
Reese Jones, Jessica M Rimsza, Louise J Criscenti
Using an atomistic technique consistent with continuum balance laws and drawing on classical fracture mechanics theory, we estimate the resistance to fracture propa- gation of amorphous silica. We discuss correspondence and deviations from classical linear elastic fracture mechanics theory including size dependence, rigid/floppy modes of deformation, and the effects of surface energy and stress.
May 4, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29698292/does-the-watson-jones-or-modified-smith-petersen-approach-provide-superior-exposure-for-femoral-neck-fracture-fixation
#5
Paul M Lichstein, John P Kleimeyer, Michael Githens, John S Vorhies, Michael J Gardner, Michael Bellino, Julius Bishop
BACKGROUND: A well-reduced femoral neck fracture is more likely to heal than a poorly reduced one, and increasing the quality of the surgical exposure makes it easier to achieve anatomic fracture reduction. Two open approaches are in common use for femoral neck fractures, the modified Smith-Petersen and Watson-Jones; however, to our knowledge, the quality of exposure of the femoral neck exposure provided by each approach has not been investigated. QUESTIONS/PURPOSES: (1) What is the respective area of exposed femoral neck afforded by the Watson-Jones and modified Smith-Petersen approaches? (2) Is there a difference in the ability to visualize and/or palpate important anatomic landmarks provided by the Watson-Jones and modified Smith-Petersen approaches? METHODS: Ten fresh-frozen human pelvi underwent both modified Smith-Petersen (utilizing the caudal extent of the standard Smith-Petersen interval distal to the anterosuperior iliac spine and parallel to the palpable interval between the tensor fascia lata and the sartorius) and Watson-Jones approaches...
April 24, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29690604/nail-properties-and-bone-health-a-review
#6
REVIEW
Pouya Saeedi, Amin Shavandi, Kim Meredith-Jones
Physicochemical properties of nail may offer valuable insight into the health of bone. Currently, dual-energy X-ray absorptiometry (DXA) is the gold standard technique for evaluating bone health through bone mineral density (BMD). However, only 70% of fractures are explained by low BMD according to DXA. Therefore, the World Health Organisation recommended the need for the development of alternative methods of assessing bone health. Keratin and collagen type I are major proteins in nail and bone, respectively...
April 23, 2018: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/29685559/early-weightbearing-protocol-in-operative-fixation-of-acute-jones-fractures
#7
Brett J Waverly, Matthew D Sorensen, Tyler K Sorensen
The treatment of Jones fractures has been controversial in terms of nonoperative versus operative management, given the high incidence of nonunion secondary to the delicate blood supply to the proximal fifth metatarsal. We report a retrospective review of a patient cohort treated with an early weightbearing protocol after operative intramedullary fixation in acute Jones fractures. Thirty-one consecutive patients with an acute Jones fracture underwent operative fixation with a single intramedullary solid screw...
May 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29655320/empirical-potential-for-molecular-simulation-of-graphene-nanoplatelets
#8
Alexander J Bourque, Gregory C Rutledge
A new empirical potential for layered graphitic materials is reported. Interatomic interactions within a single graphene sheet are modeled using a Stillinger-Weber potential. Interatomic interactions between atoms in different sheets of graphene in the nanoplatelet are modeled using a Lennard-Jones interaction potential. The potential is validated by comparing molecular dynamics simulations of tensile deformation with the reported elastic constants for graphite. The graphite is found to fracture into graphene nanoplatelets when subjected to ∼15% tensile strain normal to the basal surface of the graphene stack, with an ultimate stress of 2...
April 14, 2018: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29644275/delayed-identification-of-an-isolated-paediatric-capitate-fracture
#9
A Khoriati, C Jones, A Abdulkareem, N Ellahee
Fractures of the capitate bone are the second most common injury to a child's wrist but are rarely encountered in isolation. This is reflected in the paucity of described cases in the literature. Their true incidence is unknown as they often do not appear on plain radiographs and may heal without immobilisation. The easiest way to detect these fractures is with an MRI scan. The authors present a rare case of isolated capitate fracture that was initially missed on plain films. This case is important as it highlights the need for a high index of suspicion in paediatric patients with unresolving wrist pain...
December 2017: Trauma Case Reports
https://www.readbyqxmd.com/read/29627133/quantitative-evaluation-of-facet-deflection-stiffness-strain-and-failure-load-during-simulated-cervical-spine-trauma
#10
Ryan D Quarrington, John J Costi, Brian J C Freeman, Claire F Jones
Traumatic cervical facet dislocation (CFD) is often associated with devastating spinal cord injury. Facet fractures commonly occur during CFD, yet quantitative measures of facet deflection, strain, stiffness and failure load have not been reported. The aim of this study was to determine the mechanical response of the subaxial cervical facets when loaded in directions thought to be associated with traumatic bilateral CFD - anterior shear and flexion. Thirty-one functional spinal units (6 × C2/3, C3/4, C4/5, and C6/7, 7 × C5/6) were dissected from fourteen human cadaver cervical spines (mean donor age 69 years, range 48-92; eight male)...
March 9, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29622758/lumbar-spine-bone-mineral-density-z-score-discrepancies-by-dual-x-ray-absorptiometry-do-not-predict-vertebral-fractures-in-children
#11
Tasma Harindhanavudhi, Anna Petryk, Richard Jones, Amanda R Wallin, James S Hodges, Sara Van Nortwick, Bradley S Miller, Tara L Holm, Kyriakie Sarafoglou
Dual X-ray absorptiometry (DXA) remains the most common mode of bone mineral density (BMD) evaluation. In adults, presence of a lumbar spine (LS) BMD T-score discrepancy (>1 SD difference between adjacent vertebrae) can indicate a vertebral fracture. In children, however, the clinical significance of such discrepancies is unknown. We conducted a retrospective study to evaluate the association between LS DXA and LS morphology to elucidate the clinical significance of an LS BMD Z-score discrepancy. We identified 360 DXA scans performed between September 2014 and May 2016 in patients 5-18 years of age...
April 4, 2018: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/29618171/percutaneous-vertebroplasty-for-osteoporotic-vertebral-compression-fracture
#12
REVIEW
Rachelle Buchbinder, Renea V Johnston, Kobi J Rischin, Joanne Homik, C Allyson Jones, Kamran Golmohammadi, David F Kallmes
BACKGROUND: Percutaneous vertebroplasty remains widely used to treat osteoporotic vertebral fractures although our 2015 Cochrane review did not support its role in routine practice. OBJECTIVES: To update the available evidence of the benefits and harms of vertebroplasty for treatment of osteoporotic vertebral fractures. SEARCH METHODS: We updated the search of CENTRAL, MEDLINE and Embase and trial registries to 15 November 2017. SELECTION CRITERIA: We included randomised and quasi-randomised controlled trials (RCTs) of adults with painful osteoporotic vertebral fractures, comparing vertebroplasty with placebo (sham), usual care, or another intervention...
April 4, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29584493/numerical-investigation-of-driver-lower-extremity-injuries-in-finite-element-frontal-crash-reconstruction
#13
Xin Ye, James P Gaewsky, Logan E Miller, Derek A Jones, Mireille E Kelley, Jeffrey D Suhey, Bharath Koya, Ashley A Weaver, Joel D Stitzel
OBJECTIVE: Lower extremity injuries are the most frequent Abbreviated Injury Scale (AIS) 2 injury for drivers in frontal crashes. The objective was to reconstruct 11 real-world motor vehicle crashes (2 with AIS 2+ distal lower extremity injury and 9 without lower extremity injury) and to analyze the vehicle parameters and driver attributes that affect injury risk. METHODS: Eleven frontal crashes were reconstructed with a finite element simplified vehicle model (SVM) using a semi-automated optimization method...
February 28, 2018: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29560773/acoustic-emission-technology-can-warn-of-impending-iatrogenic-femur-fracture-during-femoral-canal-preparation-for-uncemented-hip-replacement-a-cadaveric-animal-bone-study
#14
Pierre H M Pechon, Rhys Pullin, Mark J Eaton, Stephan A Jones, Sam Evans
During uncemented hip arthroplasty the femoral prosthesis can be fitted too tightly into the femoral canal, causing a hoop-stress fracture of the proximal femur. The research undertaken evaluated Acoustic Emission (AE) technology as a potential method of detecting a fracture forming in this manner, in an attempt to assess whether this technology may be used as a means of early warning of impending fracture during surgery. Deer femora were prepared in a manner similar to surgery and uncemented hip arthroplasty broaches were inserted until fracture occurred...
March 21, 2018: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/29558371/increasing-severity-of-malnutrition-is-associated-with-poorer-30-day-outcomes-in-patients-undergoing-hip-fracture-surgery
#15
Andrew S Chung, Joshua W Hustedt, Robert Walker, Clifford Jones, Jason Lowe, George V Russell
OBJECTIVES: Low serum albumin levels (hypoalbuminemia) have classically been used to identify malnutrition. The effect of increasing severity of malnutrition on postoperative outcomes in patients undergoing hip fracture surgery has not been well delineated on a large scale. DESIGN: Retrospective. SETTING: Multicenter. PATIENT/PARTICIPANTS: A total of 12,373 patients undergoing hip fracture surgery from 2006 to 2013 National Surgery Quality Improvement Project data were identified...
April 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29548633/is-it-possible-to-overcompress-the-syndesmosis
#16
Piyush Mahapatra, Ben Rudge, Paul Whittingham-Jones
The case we present suggests that it might be possible to overcompress the syndesmosis, causing subluxation of the talus within the ankle mortise. A 26-year-old female patient had had a Weber Type C ankle fracture internally fixed with a lateral plate and syndesmosis screws. Despite the fibula appearing well reduced and computed tomography imaging showing a well-aligned fibula within the fibular notch, anteromedial subluxation of the talus was present in the ankle mortise. Examination with the patient under anesthesia revealed a stable syndesmosis fixation; however, talar malpositioning was not affected by the foot position...
March 13, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29540649/irreducible-elbow-fracture-and-dislocation-due-to-incarceration-of-the-medial-epicondyle-of-the-humerus-in-a-child
#17
Yoshihiko Satake, Yuji Tomori, Takuya Sawaizumi, Mitsuhiko Nanno, Norie Kodera, Shinro Takai
Medial epicondyle fractures of the humerus account for 11%-20% of all elbow injuries in children. Although intra-articular incarceration of the medial epicondyle occurs in 5%-18% of medial epicondyle fractures associated with an elbow dislocation, the mechanism of intrusion of the fracture fragment is unknown. We report a case of an irreducible elbow fracture and dislocation due to incarceration of the medial epicondyle fragment of the humerus, classified as a Watson-Jones type 3 fracture of the medial epicondyle, and present the mechanism of the intra-articular incarceration of the medial epicondyle fragment...
2018: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29506948/is-the-midterm-progress-of-pediatric-and-adolescent-talus-fractures-stratified-by-age
#18
Christiane Kruppa, Tyler Snoap, Debra L Sietsema, Thomas A Schildhauer, Marcel Dudda, Clifford B Jones
The outcomes of pediatric talus fractures have been minimally reported in published studies. The purpose of the present retrospective study was to determine the clinical and radiographic outcomes after talus fractures in pediatric and adolescent patients and to define the differences among the different age groups in this population. A total of 52 children and adolescents (54 fractures) with 24 type 1 (44.44%), 13 type 2 (24.07%), 8 type 3 (14.81%), and 9 type 4 (16.67%) Marti-Weber fractures were considered...
May 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29472964/functional-outcomes-of-thoracolumbar-junction-spine-fractures
#19
Bradford A Wall, Alan Moskowitz, M Camden Whitaker, Teresa L Jones, Ryan M Stuckey, Catherine L Carr-Maben, Alexander Cm Chong
Introduction: Few studies have evaluated the functional outcomes of traumatic thoracic and lumbar vertebral body fractures. This study evaluated the functional and clinical outcomes of patients, who sustained a fracture to the thoracolumbar area of the spine (T10 to L2 region), with ≥ 25° kyphosis versus those with less kyphotic curvature. Methods: The trauma registry records of two level 1 trauma centers using ICD-9 codes for fracture to the thoracolumbar juncture (T10 to L2 region) were reviewed...
May 2017: Kansas Journal of Medicine
https://www.readbyqxmd.com/read/29466679/a-biomechanical-comparison-of-fifth-metatarsal-jones-fracture-fixation-methods
#20
Neil L Duplantier, Ronald J Mitchell, Steve Zambrano, Aaron C Stone, Domenica A Delgado, Bradley S Lambert, Michael R Moreno, Joshua D Harris, Patrick C McCulloch, David M Lintner, Kevin E Varner
BACKGROUND: Fifth metatarsal base fractures of the metaphyseal-diaphyseal watershed junction (Jones fracture) are commonly treated with surgical fixation in athletes. Intramedullary screw fixation remains the most utilized construct, although plantar-lateral plating is an alternative. Purpose/Hypothesis: The purpose was to compare the mechanical strength of fracture fixation between an intramedullary screw and plantar-lateral plating. The hypothesis was that plantar-lateral plate fixation would allow for more cycles and higher peak loads before failure, as well as less fracture gapping, than would an intramedullary screw in cadaveric foot specimens with simulated Jones fractures exposed to cantilever bending...
April 2018: American Journal of Sports Medicine
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