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https://www.readbyqxmd.com/read/27911364/an-intramedullary-locking-nail-for-standardized-fixation-of-femur-osteotomies-to-analyze-normal-and-defective-bone-healing-in-mice
#1
Tina Histing, Michael D Menger, Tim Pohlemann, Romano Matthys, Tobias Fritz, Patric Garcia, Moritz Klein
Bone healing models are essential to the development of new therapeutic strategies for clinical fracture treatment. Furthermore, mouse models are becoming more commonly used in trauma research. They offer a large number of mutant strains and antibodies for the analysis of the molecular mechanisms behind the highly differentiated process of bone healing. To control the biomechanical environment, standardized and well-characterized osteosynthesis techniques are mandatory in mice. Here, we report on the design and use of an intramedullary nail to stabilize open femur osteotomies in mice...
November 13, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27909788/dedifferentiated-liposarcoma-of-the-lower-extremity-with-low-grade-dedifferentiation-and-low-grade-osteosarcomatous-component
#2
Anna K Zajicek, Julia A Bridge, Joshua W Akers, Sean V McGarry, Craig W Walker
Dedifferentiated liposarcoma can arise de novo or as a complication of a preexisting well-differentiated liposarcoma. We describe the radiologic and pathologic features of a long-standing liposarcoma with multiple recurrences in a 59-year-old male. Imaging demonstrated a heterogeneous fat-containing mass in the anterior thigh. The adjacent proximal femur showed irregular cortical new bone, eventually followed by intramedullary osteoblastic involvement and pathologic fracture. Histologic assessment at resection revealed dedifferentiated liposarcoma with low-grade osteosarcomatous component...
December 1, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27906660/a-huge-intramedullary-solitary-fibrous-tumor
#3
Qingfeng Wang, Xin Hu, Yiying Wang, Chao You, Haifeng Chen
No abstract text is available yet for this article.
November 15, 2016: Neurology
https://www.readbyqxmd.com/read/27905059/exposure-to-secondhand-smoke-impairs-fracture-healing-in-rats
#4
Hildemberg A R Santiago, Ariane Zamarioli, Manoel D Sousa Neto, Jose B Volpon
BACKGROUND: Nonsmokers may be affected by environmental tobacco smoke (secondhand smoke), but the effects of such exposure on fracture healing have not been well studied. QUESTIONS/PURPOSES: To explore the possible effects of passive inhalation of tobacco smoke on the healing of a diaphyseal fracture in femurs of rats. We hypothesized that secondhand exposure to tobacco smoke adversely affects fracture healing. METHODS: A mid-diaphyseal fracture was created in the femur of 41 female Wistar rats and fixed with an intramedullary metallic pin; 14 rats were excluded (nine for inadequate fractures and five for K wire extrusion)...
November 30, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27904933/-metastatic-disease-in-long-bones-review-of-surgical-treatment-options
#5
Franz Liska, Philipp Schmitz, Norbert Harrasser, Peter Prodinger, Hans Rechl, Rüdiger von Eisenhart-Rothe
Surgery in metastatic bone disease is currently the most frequent type of surgery in orthopedic oncology. Improved survival rates and an increasing incidence of bone metastasis have led to an increase in complications caused by metastatic disease, such as pathological fractures or hardware failure after operative treatment. Although surgery of metastatic lesions remains a palliative therapy concept, because of sufficient therapy for the primary carcinomas, tumor-specific-oriented follow-up protocols and a variation in the prognosis for the individual entities, an individually adapted treatment strategy is necessary...
November 30, 2016: Der Unfallchirurg
https://www.readbyqxmd.com/read/27904734/recurrence-of-a-unicameral-bone-cyst-in-the-femoral-diaphysis
#6
Hyun Se Kim, Kyung Sup Lim, Sung Wook Seo, Seung Pil Jang, Jong Sup Shim
Diaphyseal unicameral bone cysts of the long bone are generally known to originate near the growth plate and migrate from the metaphysis to the diaphysis during skeletal growth. In the case of unicameral bone cysts of diaphyseal origin, recurrence at the same location is extremely rare. We report a case of recurrence of a unicameral bone cyst in the diaphysis of the femur that developed 8 years after treatment with curettage and bone grafting. We performed bone grafting and lengthening of the affected femur with an application of the Ilizarov apparatus over an intramedullary nail to treat the cystic lesion and limb length discrepancy simultaneously...
December 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27904730/intramedullary-nailing-for-pathological-fractures-of-the-proximal-humerus
#7
Eun-Seok Choi, Ilkyu Han, Hwan Seong Cho, In Woong Park, Jong Woong Park, Han-Soo Kim
BACKGROUND: Endoprosthetic reconstruction is widely applied for pathological fractures of the proximal humerus; however, functional impairment is usually unsatisfactory. The aims of the current study are to evaluate the reliability of interlocking intramedullary (IM) nailing with cement augmentation as a fixation method in proximal humeral lesions and to assess functional outcomes. METHODS: We reviewed 32 patients with pathological fractures of the proximal humerus who underwent interlocking IM nailing and cement augmentation...
December 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27904716/is-anterior-bridge-plating-for-mid-shaft-humeral-fractures-a-suitable-option-for-patients-predominantly-involved-in-overhead-activities-a-functional-outcome-study-in-athletes-and-manual-laborers
#8
Abhishek S Mahajan, Young Gun Kim, Jae Hwa Kim, Prashanth D'sa, Azhar Lakhani, Hyun Soo Ok
BACKGROUND: To assess the functional and radiological outcomes of minimally invasive anterior bridge plating (ABP) for mid-shaft humerus fractures in patients predominantly involved in overhead activities (athletes and manual laborers). METHODS: Forty-eight patients fulfilling inclusion criteria were treated with ABP at a level-I trauma center using a 4.5-mm dynamic/locking compression plate and followed for a period of 1 year. Functional outcome was assessed using the Constant, Mayo elbow, and Disabilities of the Arm, Shoulder and Hand (DASH) scores...
December 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27902166/is-intramedullary-nailing-applicable-for-distal-tibial-fractures-with-ankle-joint-extension
#9
Ozan Beytemür, Cem Albay, Oktay Adanır, Serdar Yüksel, Mehmet Akif Güleç
OBJECTIVES: This study aims to evaluate the functional and radiographic results and treatment complications of AO/OTA (Arbeitsgemeinschaft fur Osteosynthesefragen/Orthopaedic Trauma Association) type 43C1 and C2 fractures treated with intramedullary nailing. PATIENTS AND METHODS: We retrospectively evaluated 35 AO/OTA type 43C1 and C2 patients (26 males, 9 females; mean age 39.8±16.9 years; range 19 to 82 years) treated with intramedullary nailing. Two interfragmentary screws out of nail were applied in 10 patients (29%), while one interfragmentary screw out of nail was applied in 17 patients (49%)...
December 2016: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/27896531/primary-intramedullary-hydatid-cyst-a-case-report-and-literature-review
#10
Zhenhai Zhang, Juan Fan, Yuanyuan Dang, Ruxiang Xu, Chunsen Shen
Intramedullary hydatid cyst is extremely rare. We present a case of pathologically confirmed primary intramedullary hydatid cyst in an otherwise healthy patient. A 17-year-old boy presented with lumbar pain, weakness, and numbness in both lower limbs, and urinate difficulty interrupted for 2 years. The patient had no other signs of systemic hydatid cyst disease. An intramedullary cystic lesion was identified with magnetic resonance imaging and was shown to be a hydatid cyst by histopathologic examination after the surgical removal...
November 28, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27895371/rotational-mal-alignment-after-reamed-intramedullary-nailing-for-tibial-shaft-fracture
#11
Sher Baz Khan, Yasir Mohib, Rizwan Haroon Rashid, Haroonur Rashid
Intra-medullary (IM) nailing is standard of care for unstable tibial shaft fractures. Malrotation is very common but it is under-recognised, inpart because of variation in normal anatomy and partly due to difficulty in accurately assessing rotation. This study was planned to evaluate the frequency of rotational mal-alignment after reamed tibia IMnailing. This cross-sectional study was conducted at Aga khan University Hospital, Karachi, and comprised patients with tibia shaft fractures managed with IMnailing from January to December 2014...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27887013/severe-cervical-spondylotic-myelopathy-with-complete-neurological-and-neuroradiological-recovery-within-a-month-after-surgery
#12
Th Marios, Zevgaridis Dimitrios, Th Theologos, Tsonidis Christos
Cervical spondylotic myelopathy is a complex syndrome evolving in the presence of degenerative changes. The choice of care and prognostic factors are controversial. The use of appropriate surgical technique is very important. Posterior approach may be chosen when pathology is present dorsally and/or in the presence of neutral to lordotic alignment. Anterior approach is the golden standard in patients with kyphosis and/or stenosis due to ventral lesions, even with three or more affected levels. A 67-year-old man presented with progressive weakness and clumsiness (mJOA: 5; Nurick: 4)...
November 24, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27879953/elective-laminectomy-and-excision-of-the-thoracic-spine-neoplasm-an-evaluation-of-early-outcomes
#13
Pavan S Upadhyayula, John K Yue, Erik I Curtis, Joseph D Ciacci
BACKGROUND: Laminectomy plus excision of spinal neoplasms is commonly performed. The current study examines risk profiles associated with elective laminectomies of benign, malignant primary, and secondary/metastatic neoplasms of the thoracic spine. METHODS: Adult patients undergoing elective thoracic laminectomy and excision of spinal neoplasm were abstracted from ACS-NSQIP years 2011-2014. Patients were classified into three cohorts: benign primary, malignant primary, secondary/metastatic...
November 23, 2016: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/27878549/fluoroscopic-freehand-and-electromagnetic-guided-targeting-system-for-distal-locking-screws-of-humeral-intramedullary-nail
#14
P Persiani, M Gurzi, O Moreschini, G Di Giacomo, C Villani
PURPOSE: The current techniques used to lock distal screws for the nailing of long bone fractures expose the surgeons, radiologists and patients to a hearty dose of ionizing radiation. The Sureshot™ Distal Targeting System is a new technique that, with the same results, allows for shorter surgery times and, consequently, less exposure to radiation. MATERIALS AND METHODS: The study was performed on 59 patients (34 males and 25 females) with a simple humerus fracture diagnosis, type 1...
November 22, 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27875489/femoral-medialization-fixation-failures-and-functional-outcome-in-trochanteric-hip-fractures-treated-with-either-a-sliding-hip-screw-or-an-intramedullary-nail-from-within-a-randomized-trial
#15
Christopher P Bretherton, Martyn J Parker
OBJECTIVES: The aim of this study was to determine if femoral medialization influences residual pain and mobility and to determine if fixation method or fracture pattern influences the tendency to medialize. DESIGN: This study used data from within a randomized controlled trial. SETTING: Peterborough City Hospital, UK. PATIENT/PARTICIPANTS: Eight hundred forty-four patients presenting with a trochanteric hip fracture were randomized...
December 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27872519/the-inflatable-intramedullary-nail-for-humeral-shaft-fractures
#16
Fırat Ozan, Kaan Gürbüz, Erdal Uzun, Sefa Gök, Fatih Doğar, Fuat Duygulu
BACKGROUND: We assessed the results of humeral shaft fracture fixation using the inflatable intramedullary nail using radiological and clinical findings. METHODS: From 2012 to 2015, we treated 14 patients with humeral shaft fractures using inflatable intramedullary nail after closed reduction. RESULTS: The mean follow-up time was 14.1 months. The mean time to bone union was 4.5 months. None of the patients had major perioperative mechanical complications or postoperative complications, except for the occurrence of fixation loss and non-union in one patient...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27872380/management-of-distal-tibial-metaphyseal-bone-defects-with-an-intramedullary-nitinol-scaffold-a-novel-technique
#17
Samuel E Ford, J Kent Ellington
: Difficult problems that are faced when reconstructing severe pilon fractures include filling metaphyseal defects and supporting an impacted, multifragmented articular surface. Supplements to plate fixation currently available in a surgeon's armamentarium include cancellous bone autograft, structural bone allograft, demineralized bone matrix, and calcium-based cements. Cancellous autograft possesses limited inherent mechanical stability and is associated with graft site morbidity. Structural allografts incorporate inconsistently and are plagued by late resorption...
November 20, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27871553/fascia-iliaca-block-associated-only-with-deep-sedation-in-high-risk-patients-taking-p2y12-receptor-inhibitors-for-intramedullary-femoral-fixation-in-intertrochanteric-hip-fracture-a-series-of-3-cases
#18
Carlos Rodrigues Almeida, Emília Milheiro Francisco, Vítor Pinho-Oliveira, José Pedro Assunção
OBJECTIVE: We present a series of 3 cases in which the impact in outcome was, first of all, related to the capacity to offer early and safer treatment to some hip fracture high-risk patients using a fascia iliaca block (FIB; ropivacaine 0,5% 20 cc and mepivacaine 1,3% 15 cc, given 30 minutes before incision) associated only with deep sedation, contributing to better practice and outcome. CASE REPORTS: All elderly patients were American Society of Anesthesiologists IV patients, under P2Y12 receptor inhibitors, suffering from an intertrochanteric fracture, and purposed for intramedullary femoral fixation (IMF)...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27865312/an-overview-of-internal-and-external-fixation-methods-for-the-diabetic-charcot-foot-and-ankle
#19
REVIEW
Crystal L Ramanujam, Thomas Zgonis
Diabetic Charcot neuroarthropathy (DCN) of the foot and ankle is a challenging disease with regard to clinical presentation, pathogenesis, and prognosis. Its surgical management is equally difficult to interpret based on the wide array of options available. In the presence of an ulceration or concomitant osteomyelitis, internal fixation by means of screws, plates, or intramedullary nailing needs to be avoided when feasible. External fixation becomes a great surgical tool when managing DCN with concomitant osteomyelitis...
January 2017: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/27861604/effectiveness-and-safety-of-interventions-for-treating-adults-with-displaced-proximal-humeral-fracture-a-network-meta-analysis-and-systematic-review
#20
Long Chen, Fei Xing, Zhou Xiang
PURPOSE: Network meta-analysis (NMA) is a comparatively new evidence-based technique in medical disciplines which compares the relative benefits associated with multiple interventions and obtains hierarchies of these interventions for various treatment options. We evaluated the effectiveness and safety of open reduction and internal fixation (ORIF), hemiarthroplasty (HA), reverse shoulder arthroplasty (RSA), intramedullary nailing (IN) and non-operative treatment (NOT) of displaced proximal humeral fractures in adults using Bayesian NMA of data from clinical trials...
2016: PloS One
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