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(Metacarpal OR hand OR finger) AND fracture

Turash Haque Pial, Tawfiqur Rakib, Satyajit Mojumder, Mohammad Motalab, M A Salam Akanda
The mechanical properties of indium phosphide (InP) nanowires are an emerging issue due to the promising applications of these nanowires in nanoelectromechanical and microelectromechanical devices. In this study, molecular dynamics simulations of zincblende (ZB) and wurtzite (WZ) crystal structured InP nanowires (NWs) are presented under uniaxial tension at varying sizes and temperatures. It is observed that the tensile strengths of both types of NWs show inverse relationships with temperature, but are independent of the size of the nanowires...
March 14, 2018: Physical Chemistry Chemical Physics: PCCP
Shan-Qing Yin, Yao-Peng Huang, Miao-Zhong Li, Jia-Dong Pan, Wen-Quan Ding, Xin Wang
OBJECTIVE: To analyze the relationship between radiographic parameters and clinical outcomes of patients with distal radius fractures in elderly patients following conservative treatment, and find the important radiographic parameters with distal radius fractures in elderly patients. METHODS: From May 2012 to May 2015, a retrospective analysis was performed of 45 elderly patients with distal radius fractures treated by conservative treatment, which including 17 males and 28 females with an average age of 64...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Feng Zhao, Matthew Kirby, Anuradha Roy, Yizhong Hu, X Edward Guo, Xiaodu Wang
Understanding the relationship between the microstructure and mechanical function of trabecular bone is critical for prediction and prevention of bone fragility fractures. However, a detailed understanding of the structural design of trabecular microarchitecture is still missing. This study hypothesized that there exists a commonality in the underlying probabilistic distributions of microstructural features of trabecular bones, whereas the microstructural differences among individuals are primarily describe by a set of scalar parameters...
March 10, 2018: Bone
T Liu, F L Bao, S J Kang, T Jiang, D S Huang, W Gao, L J Geng, Y M Hu
Objective: To explore a standard procedure for the treatment of combined dorsal and palmar internal fixation for complex four part distal radius fractures and assess its clinical results. Methods: From May 2009 to October 2016, 38 patients(39 sides)who suffered from complex four part distal radius fractures were performed operatively with open reduction and internal fixation via combined dorsal and palmar approach in Department of Orthopaedic Trauma, Qilu Hospital of Shandong University(Qingdao). The series included 22 males(22 sides) and 16 females(17 sides)...
March 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Takeshi Shimoide, Naoyuki Kawao, Yukinori Tamura, Kiyotaka Okada, Yoshitaka Horiuchi, Katsumi Okumoto, Shinji Kurashimo, Masayoshi Ishida, Kohei Tatsumi, Osamu Matsuo, Hiroshi Kaji
Delayed fracture healing is a significant clinical problem among various complications in diabetic patients. However, the details in the mechanisms of diabetic delayed bone repair have still remained unknown. Here, we investigated the roles of macrophages in diabetic delayed bone repair after femoral bone injury using streptozotocin (STZ)-treated or plasminogen activator inhibitor-1 (PAI-1)-deficient female mice. STZ treatment significantly decreased the numbers of F4/80-positive cells (macrophages), but not Gr-1-positive cells (neutrophils), at the damaged site on day 2 after femoral bone injury in mice...
March 8, 2018: Endocrinology
Jose Couceiro, Higinio Ayala, Manuel Sanchez, Maria de Los Angeles De la Red, Olga Velez, Fernando Del Canto
Purpose  The purpose of our study is to compare the intramedullary fixation of metacarpal fractures with cannulated headless screws and antegrade Kirschner wires in terms of final total active motion, grip strength, patient-related outcomes, need for casting, and return to work times. Methods  The authors performed a retrospective review of the hospital records. Thirty fractures were included in the study, 19 in the screw fixation group, and 11 in the Kirschner wire group. Grip strength, and total active motion, was measured at the latest follow-up for both the injured and contralateral hand...
January 2018: Surgery Journal
Bingbo Bao, Hongyi Zhu, Xianyou Zheng
BACKGROUND: Fourth and fifth carpometacarpal fracture-dislocations with unsatisfactory closed reduction commonly require later open reduction and internal fixation. However, the optimal method of internal fixation for these is unknown. The purpose of this study was to determine through objective clinical measures which method is superior for fourth and fifth carpometacarpal fracture-dislocations: a K-wire or a plate. METHODS: We conducted a retrospective review of hospital records of patients who had received treatment for fourth and fifth carpometacarpal fracture-dislocations at one hospital between May 2007 and May 2015...
March 9, 2018: International Journal of Surgery
Lukas Ernstbrunner, Eva Schulz, Matthaeus Ernstbrunner, Thomas Hoffelner, Thomas Freude, Herbert Resch, Maximilian Haas
INTRODUCTION: Little is known about injuries in canyoning. It was the purpose of this study to determine injury rates, patterns, causes and risk factors in canyoning; and to identify targets for future injury prevention strategies. METHODS: From May to October 2015, 109 participants from 17 different countries were prospectively followed via a monthly e-mail-based questionnaire. RESULTS: During 13,690 h of canyoning, 57 injury-events occurred...
March 6, 2018: Injury
Laura J Schmertmann, Kathryn Stalder, Donald Hudson, Patricia Martin, Mariano Makara, Wieland Meyer, Richard Malik, Mark B Krockenberger
Disseminated cryptococcosis caused by Cryptococcus gattii (molecular type VGI) was diagnosed in an adult free-ranging female koala (Phascolarctos cinereus). Subclinical cryptococcosis was later diagnosed in this koala's joey. In the adult koala, a pathological fracture of the tibia was associated with the bone lysis of marked focal cryptococcal osteomyelitis. Limb-sparing orthopedic intervention, in the setting of disseminated cryptococcosis, was judged to have a poor prognosis, and the adult koala was euthanized...
February 24, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
Yang Zhou, Dongshuai Hou, Guoqing Geng, Pan Feng, Jiao Yu, Jinyang Jiang
The mechanical properties of organic/inorganic composites can be highly dependent on the interfacial interactions. In this work, with organic polymers intercalated into the interlayer of inorganic calcium silicate hydrate (C-S-H), the primary binding phase of Portland cement, great ductility improvement is obtained for the nanocomposites. Employing reactive molecular dynamics, the simulation results indicate that strong interfacial interactions between the polymers and the substrate contribute greatly to strengthening the materials, when C-S-H/poly ethylene glycol (PEG), C-S-H/poly acrylic acid (PAA), and C-S-H/poly vinyl alcohol (PVA) were subject to uniaxial tension along different lattice directions...
March 12, 2018: Physical Chemistry Chemical Physics: PCCP
Nicholas Pulos, Sanjeev Kakar
Injuries to the hands and wrist are common in athletes. Injuries include acute fractures, dislocations, ligamentous, and tendon injuries, as well as more chronic injuries such as sprains and strains. Complications in the treatment of sports injuries of the hand and wrist may be divided into 2 categories: incorrect or delayed diagnosis and iatrogenic injury related to treatment. This article highlights common sports injuries of the hand and wrist and their complications, and includes tips for successful management...
April 2018: Clinics in Sports Medicine
Hans-Eric Rosberg, Lars B Dahlin
BACKGROUND: Both the number and the proportion of elderly people in the society increase. The number of elderly subjects with a disability due to a disease has decreased resulting in more active elderly. Therefore, an increase in numbers of injury in the elderly population can be expected; a hypothesis that was investigated in the present study. METHODS: Two-hundred sixteen patients with an age of > 65 years, and admitted to a hand surgery ward with a hand injury, were retrospectively collected at four different 2-years periods over a 30 years time (1980-81 to 2010-11)...
March 9, 2018: BMC Geriatrics
Wanan Xiao, Xiaoxiao Yang, Yang Wang, Jianjun Li
BACKGROUND: Abdominal injuries combined with bone fractures are increasing. Splenectomies are often required, but have prolonged healing time for bone fracture. OBJECTIVES: The aim of the study was to explore the molecular mechanism for splenectomy delaying fracture healing. MATERIAL AND METHODS: Eighty-four patients (42 received splenectomy) who received hip fractures operations were recruited in our hospital. One-year follow-up analysis was performed...
February 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
N Alnaif, S Alrobaiea, Alain J Azzi, S Thibaudeau, M H Martin
Isolated avulsion fracture of the extensor carpi radialis longus (ECRL) tendon is a rare and poorly understood injury. We present a unique case of a 45-year-old male who fell on his flexed right hand. He presented with a subtle but extremely painful mass on the dorsum of his wrist. Ultrasound (U/S) imaging of the mass revealed an avulsed bone fragment attached to the ECRL tendon, confirming the clinical suspicion of an ECRL avulsion injury. Computed tomography and magnetic resonance imaging are well-documented imaging modalities to detect tendon avulsions...
March 7, 2018: Skeletal Radiology
Rashid Usman, Muhammad Jamil, Javaid Sajjad Hashmi
Objective : To share our experience regarding the management of arterial injuries in children with pulseless hand secondary to supracondylar fracture of the humerus (SFH). Patients and Methods : All consecutive children with pulseless hands after SFH who were being treated in the vascular surgery units of the Combined Military Hospital, Lahore and Peshawar between September 2011 and September 2016 were included. The type of fracture, mode and pattern of injury, time from injury to definitive treatment, operative treatment, and complications were recorded...
December 25, 2017: Annals of Vascular Diseases
Chris Steffi, Dong Wang, Chee Hoe Kong, Zuyong Wang, Poon Nian Lim, Zhilong Shi, Eng San Thian, Wilson Wang
Estrogen, a steroid hormone, plays an important role in modulating osteoclast proliferation and development. Estrogen deficiency boosts osteoclast activity, leading to osteoporosis in elderly women. In this study, 17-ß estradiol (E2) loaded poly(ε-caprolactone) (PCL)/silk fibroin (SF) electrospun microfibers was developed as a proposed localized E2 delivery system to treat osteoporotic fractures. PCL is a synthetic polymer known for its biocompatibility and excellent mechanical properties. The bioactivity of PCL was enhanced by mixing it with natural silk fibroin (SF) polymer that has low immunogenicity and inherent bioactivity...
March 7, 2018: ACS Applied Materials & Interfaces
M Galler, M Zellner, C Roll, C Bäuml, B Füchtmeier, F Müller
BACKGROUND: The proximal femoral fracture is one of the most common injuries in the elderly. Nevertheless, no results beyond the second year post surgery have been reported in the literature. Therefore, the purpose of this study was to evaluate any revision and mortality within 10 years follow-up as well as the walking ability of still alive patients. METHODS: A total of 200 consecutive patients were included. A prospective database was first used to collect the demographic data...
February 26, 2018: Injury
Hannah Shehata, Jerry Hizon
A 12-year-old girl presented to my office (JH) with bilateral wrist pain. She had fallen on both wrists palmar-flexed and then, while trying to get up, landed on both wrists dorsi-flexed. The patient did not hear any "pops," but felt immediate pain when her wrists hyperextended. Hand, wrist, and forearm x-rays were negative bilaterally for fractures. She was placed in bilateral thumb spica splints.
March 2018: Journal of Family Practice
Jason Silvestre, Joseph Upton, Benjamin Chang, David R Steinberg
BACKGROUND: Hand surgery fellowship programs in the United States are predominately sponsored by departments or divisions of orthopaedic surgery or plastic surgery. This study compares the operative experiences of hand surgery fellows graduating from orthopaedic or plastic surgery hand surgery fellowships. METHODS: Operative case logs of 3 cohorts of hand surgery fellows graduating during the academic years of 2012-2013, 2013-2014, and 2014-2015 were analyzed. The median case volumes were compared by specialty via Mann-Whitney U tests...
March 7, 2018: Journal of Bone and Joint Surgery. American Volume
Nebojsa Jovanovic, Ehab Aldlyami, Basem Saraj, Mohamed Fm Seidam, Hamed Badawi, Ahmed Shaat, Khalid Alawadi Facharzt, Chaitanya Dodakundi
Multiple methods have been described for treating unstable proximal and middle phalangeal fractures. Irrespective of using an open or closed technique of fixation, stiffness and extensor lag at the proximal/distal interphalangeal joint almost always occur. This issue can be avoided by allowing the patients to mobilize the fingers out of plaster or splint as early as possible from the day of surgery. We describe a technique of intramedullary percutaneous fixation of extra-articular proximal and middle phalanx fractures allowing immediate mobilization of fingers, concurrent stabilization with progressive healing and thus preventing such complications...
March 2, 2018: Techniques in Hand & Upper Extremity Surgery
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