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Avascular necrosis

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https://www.readbyqxmd.com/read/28804740/avascular-necrosis-of-the-humeral-head-following-bilateral-upper-extremity-vascular-composite-allotransplantation-a-case-report
#1
Jacob Rinkinen, David Molway, Matthew Carty, George S M Dyer, Bohdan Pomahac, Anil Chandraker, Simon G Talbot
Vascularised composite allotransplantation (VCA) represents an exciting and emerging field in plastic and reconstructive surgery. Despite the generally good functional and psychosocial outcomes, multiple complications can be associated with the procedure. The authors describe a case of avascular necrosis of the humeral head following successful upper extremity VCA.
2017: Case Reports in Plastic Surgery & Hand Surgery
https://www.readbyqxmd.com/read/28802420/dhs-osteosynthesis-with-internal-bone-grafting-in-unstable-delayed-presented-intracapsular-neck-femur-fractures
#2
Wasudeo M Gadegone, R M Chandak, Vijayanand R Lokhande
OBJECTIVES: The aim of this study was to assess fracture union and complications following use of dynamic hip screw (DHS) with internal bone grafting in treatment of unstable delayed presented intracapsular neck femur fractures in patients younger than 65 years of age. MATERIAL AND METHODS: Thirty two patients with displaced intracapsular neck femur fractures(Garden III and IV, Pauwels III, with comminution) with delayed presentation (15-60 days) in the 45-65 year age group (mean 54...
August 2017: Injury
https://www.readbyqxmd.com/read/28801039/kohler-s-disease-presenting-as-acute-foot-injury
#3
Mazin Alhamdani, Christopher Kelly
Kohler's disease is rare cause of foot pain and limping in the pediatric population. The exact etiology of Kohler's disease is unknown. It usually presents as sudden and unexplained foot pain and limping. We report a case of a 5-year-old male who presented to the Pediatric Emergency Department with foot pain and inability to bear weight for two days after overactivity and acute foot injury. The patient was eventually diagnosed with Kohler's disease (avascular necrosis of the navicular bone). Although Kohler's disease is not very common, it should be considered in the differential diagnosis of foot pain in the pediatric population, as it may prevent unnecessary tests and treatments...
August 2, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28791147/two-types-of-bone-necrosis-in-the-middle-triassic-pistosaurus-longaevus-bones-the-results-of-integrated-studies
#4
Dawid Surmik, Bruce M Rothschild, Mateusz Dulski, Katarzyna Janiszewska
Avascular necrosis, diagnosed on the basis of either a specific pathological modification of the articular surfaces of bone or its radiologic appearance in vertebral centra, has been recognized in many Mesozoic marine reptiles as well as in present-day marine mammals. Its presence in the zoological and paleontologic record is usually associated with decompression syndrome, a disease that affects secondarily aquatic vertebrates that could dive. Bone necrosis can also be caused by infectious processes, but it differs in appearance from decompression syndrome-associated aseptic necrosis...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28790551/bilateral-subcapital-femoral-neck-fracture-in-a-28-year-old-postpartum-woman
#5
Miroslav Kezunovic, Nikola Bulatovic, Vojin Kadic
INTRODUCTION: Subcapital femoral neck fractures are associated with high morbidity and mortality. These fractures mostly occur as a result of a high-force impact from traffic accidents and a fall from a great height, though non-traumatic forms are described in transient osteoporosis during the second half of pregnancy, in convulsions during electric shock, eclampsia, hypocalcemia, osteomalacia, renal osteodystrophy and myeloma. CASE REPORT: In this report we present a bilateral subcapital femoral neck fracture in a woman sustained two days after delivery...
April 2017: Medical Archives
https://www.readbyqxmd.com/read/28782448/risk-factors-associated-with-intraoperative-complications-in-primary-shoulder-arthroplasty
#6
Paul D Cowling, Philip Holland, Lucksy Kottam, Paul Baker, Amar Rangan
Background and purpose - Increasing numbers of shoulder arthroplasty are performed internationally. The predictors of intraoperative complications when implanting primary shoulder replacements are unknown. We determined the incidence of intraoperative complications during primary shoulder arthroplasty using the National Joint Registry of England, Wales, Northern Ireland and the Isle of Man (NJR), and analyzed the associated risk factors for complications. Patients and methods - NJR data on primary shoulder arthroplasty were scrutinized for intraoperative complications...
August 7, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28774681/sildenafil-improves-blood-perfusion-in-steroid-induced-avascular-necrosis-of-femoral-head-in-rabbits-via-a-protein-kinase-g-dependent-mechanism
#7
Qichun Song, Jianlong Ni, Hongyuan Jiang, Zhibin Shi
OBJECTIVE: The aim of the study were to evaluate the effect of sildenafil against avascular necrosis of femoral head (ANFH) in a rabbit model, and to study the role of protein kinase G (PKG) pathway and vascular endothelial growth factor (VEGF) in ANFH. METHODS: Three weeks after inducing ANFH with methylprednisolone injection, 45 female adult New Zealand white rabbits were divided into three groups and treated as follows: group SI received daily intraperitoneal sildenafil with a dose of 10 mg/kg per day; group SD received daily sildenafil identically to group SI plus auricular vein injection DT3 (a specific PKG inhibitor); group NS received only normal saline...
July 31, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28774452/imaging-of-posttraumatic-arthritis-avascular-necrosis-septic-arthritis-complex-regional-pain-syndrome-and-cancer-mimicking-arthritis
#8
REVIEW
Andrey Rupasov, Usa Cain, Simone Montoya, Johan G Blickman
This article focuses on the imaging of 5 discrete entities with a common end result of disability: posttraumatic arthritis, a common form of secondary osteoarthritis that results from a prior insult to the joint; avascular necrosis, a disease of impaired osseous blood flow, leading to cellular death and subsequent osseous collapse; septic arthritis, an infectious process leading to destructive changes within the joint; complex regional pain syndrome, a chronic limb-confined painful condition arising after injury; and cases of cancer mimicking arthritis, in which the initial findings seem to represent arthritis, despite a more insidious cause...
September 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28768791/the-correlation-between-salter-s-criteria-for-avascular-necrosis-of-the-femoral-head-and-kalamchi-s-prognostic-classification-following-the-treatment-of-developmental-dysplasia-of-the-hip
#9
Y Tsukagoshi, M Kamegaya, H Kamada, T Saisu, M Morita, J Kakizaki, Y Tomaru, M Yamazaki
AIMS: The aim of this study was to evaluate the correlation between Salter's criteria and Kalamchi's classification of avascular necrosis in patients treated for developmental dysphasia of the hip (DDH). PATIENTS AND METHODS: The study involved a retrospective analysis of 123 patients (123 hips) with DDH treated by operative and non-operative reduction before the age of two years, with a minimum follow-up of ten years. Salter's criteria (S1 to S4) were determined from radiographs obtained at one to two years post-reduction, whilst the Kalamchi grade was determined from radiographs obtained at ten or more years of age...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28765988/scaphoid-nonunion-does-open-reduction-bone-grafting-and-herbert-screw-fixation-justify-the-treatment
#10
K C Kapil Mani, Parimal Acharya
PURPOSE: Conventional bone grafting and Herbert screw fixation give satisfactory results for scaphoid nonunion; however, vascularized bone grafting has superior results, especially in the case of avascular necrosis of proximal fragment. Vascularized bone grafting is technically more demanding with small error of margin, problems of getting the appropriate graft, fixation and incorporation, and requires longer duration for wrist immobilization. METHODS: Forty-five patients of scaphoid nonunion were treated by cancellous bone grafting, cortex containing graft if required and Herbert screw fixation...
August 1, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28765874/upregulation-of-nuclear-factor%C3%A2-%C3%AE%C2%BAb-and-acid-sensing-ion-channel-3-in-dorsal-root-ganglion-following-application-of-nucleus-pulposus-onto-the-nerve-root-in-rats
#11
Dong Wang, Hao Pan, Hang Zhu, Li Zhu, Yong-Jiang He, Jian Wang, Gao-Yong Jia
The nucleus pulposus (NP) is an avascular, hydrated tissue that permits the intervertebral disc to resist compressive loads to the spine. To determine the mechanisms by which intervertebral disc degeneration is caused by the nucleus pulposus, the expression and regulation of nuclear factor (NF)‑κB and acid sensing ion channel 3 (ASIC3) were examined. For the intervertebral disc degeneration model, NP was harvested from the tail of rats and applied to the L5 dorsal root ganglion (DRG). The mechanical pain withdrawal threshold (PWT) in NP model rats was assessed...
July 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28764173/clinical-and-laboratory-predictors-of-frequency-of-painful-crises-among-sickle-cell-anaemia-patients-in-nigeria
#12
Angela Ogechukwu Ugwu, Obike Godswill Ibegbulam, Theresa Ukamaka Nwagha, Anazoeze Jude Madu, Sunday Ocheni, Iheanyi Okpala
INTRODUCTION: The severity of Sickle Cell Anaemia (SCA) in terms of frequency of painful Vaso-Occlusive Crises (VOC) may be affected by clinical and haematological parameters amongst others. Elucidation of these factors in a given disease prevalent environment is necessary for prompt and effective management of patients with frequent painful VOC. AIM: This study aimed at determining the clinical and laboratory predictors of frequency of painful VOC among SCA patients in Enugu, Southeastern Nigeria...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762158/the-validity-and-accuracy-of-mri-arthrogram-in-the-assessment-of-painful-articular-disorders-of-the-hip
#13
Aysha Rajeev, Wim Tuinebreijer, Abdalla Mohamed, Mike Newby
The assessment of a patient with chronic hip pain can be challenging. The differential diagnosis of intra-articular pathology causing hip pain can be diverse. These includes conditions such as osteoarthritis, fracture, and avascular necrosis, synovitis, loose bodies, labral tears, articular pathology and, femoro-acetabular impingement. Magnetic resonance imaging (MRI) arthrography of the hip has been widely used now for diagnosis of articular pathology of the hip. A retrospective analysis of 113 patients who had MRI arthrogram and who underwent hip arthroscopy was included in the study...
July 31, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28761389/concurrent-imatinib-and-radiation-therapy-for-unresectable-and-symptomatic-desmoid-tumors
#14
Everett J Moding, Lynn Million, Raffi Avedian, Pejman Ghanouni, Christian Kunder, Kristen N Ganjoo
Desmoid tumors are locally aggressive fibroproliferative neoplasms that can lead to pain and dysfunction due to compression of nerves and surrounding structures. Desmoid tumors often progress through medical therapy, and there is frequently a delay of multiple months before radiation can provide symptomatic relief. To achieve more rapid symptomatic relief and tumor regression for unresectable desmoid tumors causing significant morbidity such as brachial plexus impingement with loss of extremity function, we have selectively utilized a combination of imatinib and radiation therapy...
2017: Sarcoma
https://www.readbyqxmd.com/read/28754159/the-role-of-electrical-stimulation-in-the-management-of-avascular-necrosis-of-the-femoral-head-in-adults-a-systematic-review
#15
Talal Al-Jabri, Jessica Yan Qi Tan, Gabriel Yihan Tong, Ravikiran Shenoy, Babar Kayani, Timothy Parratt, Tahir Khan
BACKGROUND: Avascular necrosis of the femoral head causes significant morbidity and occurs in up to 20,000 people per year. A variety of nonoperative and operative measures have been trialled however a definitive treatment algorithm is yet to be established. Young adults in many cases have undergone multiple surgical procedures in their lifetime with increasing risks of complications. Less invasive techniques may help reduce the number of operations required and positively influence the natural history of the disease process...
July 28, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28750788/autologous-platelet-concentrates-as-treatment-for-avascular-necrosis-of-femoral-head-in-a-dog
#16
Estefanía Parra, Andrea Vergara, Raúl F Silva
Avascular necrosis of the femoral head is a developmental disturbance that generally affects young dogs of small breeds and produces ischemic necrosis of the femoral head resulting in an incongruous and malformed joint. The most common treatment is the excisional arthroplasty of the head and femoral neck. The aim of this study is to describe the treatment of avascular necrosis in a Yorkshire dog using intra-articular injections of autologous platelet concentrate. Evaluations were made at 0, 15, 30, 60, and 120 days of treatment, describing the following parameters: clinical gait analysis, perimetry, goniometry, and radiographic evaluations...
March 2017: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28746289/management-of-scaphoid-fractures
#17
Jason H Ko, Mitchell A Pet, Joseph S Khouri, Warren C Hammert
LEARNING OBJECTIVES: After reading this article, the participant should be able to: 1. Understand the epidemiology, classification, and anatomy pertinent to the scaphoid. 2. Appropriately evaluate a patient with suspected scaphoid fracture, including appropriate imaging. 3. Understand the indications for operative treatment of scaphoid fractures, and be familiar with the various surgical approaches. 4. Describe the treatment options for scaphoid nonunion and avascular necrosis of the proximal pole...
August 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28742788/computer-assisted-corrective-osteotomy-of-malunited-pediatric-radial-neck-fractures-three-dimensional-postoperative-accuracy-and-clinical-outcome
#18
Lizzy Weigelt, Philipp Fürnstahl, Andreas Schweizer
Neglected or incorrect treatment of pediatric radial neck fractures may lead to symptomatic malunions. Computer-assisted corrective osteotomies with patient-specific guides have been proposed as a promising technique for the reconstruction of malunited long bone deformities. The aim of this study was to evaluate the accuracy and clinical outcome of this technique in children with malunited fractures of the radial neck. Four children (two male, two female; mean age 12 (10-16) years) underwent computer-assisted closing wedge osteotomy of the radial neck...
July 24, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28742784/treatment-and-complications-of-patients-with-ipsilateral-acetabular-and-femur-fractures-a-multicenter-retrospective-analysis
#19
Justin M Hire, Preston J Boyer, Heidi Israel, Lisa K Cannada, Hassan Mir, Jason Halvorson, Gregory J Della Rocca, Bryan Ming, Brian Mullis, Chetan Deshpande
OBJECTIVES: The purpose of this study was to review the treatment of ipsilateral acetabular and femur fracture patients to provide descriptive demographic data, injury pattern classification, treatment and evaluate the complication profile reflective of current practices. STUDY DESIGN: Multicenter retrospective cohort. SETTING: Eight Level 1 Trauma Centers. PATIENTS/PARTICIPANTS: 101 patients met inclusion criteria. INTERVENTION: Surgical treatment of both the acetabular and femur fracture...
July 24, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28741323/-osteosynthesis-with-locking-plate-and-minimally-invasive-technique-for-proximal-humeral-fractures
#20
C Arroyo-Sánchez, C Abril-Gaona, D Rincón-Cardozo
OBJECTIVE: To report our experience in the treatment of 2-3 fragment proximal humeral fractures using a minimally invasive technique that involves an angular-stable locking implant and find out the factors affecting patients outcomes. MATERIAL AND METHODS: Descriptive, prospective study of the case series type. Twenty-two patients, 13 females and 9 males, were operated on between February 2010 and August 2012. Mean age was 50.8 years (24-82 years). Patients were placed in a beach-chair position...
January 2017: Acta Ortopédica Mexicana
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