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Avascular necrosis

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https://www.readbyqxmd.com/read/27923216/efficacy-of-a-cellular-bone-allograft-for-foot-and-ankle-arthrodesis-and-revision-nonunion-procedures
#1
Travis J Dekker, Peter White, Samuel B Adams
BACKGROUND: Bone graft substitutes are often required in patients at risk for nonunion, and therefore, an allograft that most closely mimics an autograft is highly sought after. This study explored the utility and efficacy of a cellular bone allograft used for foot and ankle arthrodesis and revision nonunion procedures in a patient population at risk for nonunion. METHODS: An institutional review board-approved retrospective review of consecutive patients who underwent arthrodesis and revision nonunion procedures with a cellular bone allograft was performed at a single academic institution...
October 23, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27920812/evaluation-of-the-bone-mineral-density-of-the-subjects-with-avascular-necrosis-of-hip-joint
#2
Mohammad Taghi Karimi, Seyed Mohammad Mousavi Nodoshan
BACKGROUND: The head of femur is deformed in subjects with Leg Calve Perthes Disease (LCPD). It may be due to an increase in loads applied on the hip, decrease in hip joint containment and decrease in bone mineral density (BMD) of femur. Unfortunately there is not enough evidence regarding BMD of femur in subjects with LCPD. Therefore, the aim of this study is to evaluate BMD in subjects with Perthes disease. METHOD: Two subjects with LCPD participated in this study...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27917354/results-of-a-hydroxyapatite-coated-femoral-stem-corail-in-chinese-a-minimum-10-year-follow-up
#3
Jianda Xu, Zikang Xie, Jianning Zhao, Yi Gao, Hong Zhao, Libo Peng, Yuxing Qu
BACKGROUND: Due to the adverse effects of cemented hip arthroplasty, uncemented stems with hydroxyapatite (HA) coating reduces these risks and enhanced integration. The concept of an extensive HA coating for the fixation of a tapered femoral stem (Corail(®)) was introduced, which can achieve durable biological fixation and preserve normal periprosthetic bone activity. Here we describe the clinical and radiological outcome in patients with the Corail(®) stem. METHODS: 92 total hip replacements in 81 patients using the Corail(®) stem were followed-up...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27904228/neglected-isolated-scaphoid-dislocation
#4
Jong-Ryoon Baek, Seung Hyun Cho, Yong Seuk Lee, Young Hak Roh
The authors present a case of isolated scaphoid dislocation in a 40-year-old male that was undiagnosed for 2 months. The patient was treated by open reduction, Kirschner wire fixation, interosseous ligament repair using a suture anchor and Blatt's dorsal capsulodesis. At 6 years followup, his radiographs of wrist showed a normal carpal alignment with a scapholunate gap of 3 mm and no evidence of avascular necrosis (AVN) of the scaphoid.
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27902175/spontaneous-and-bilateral-avascular-necrosis-of-the-navicula-m%C3%A3-ller-weiss-disease
#5
Erdem Aktaş, Tacettin Ayanoğlu, Yasin Hatipoğlu, Ulunay Kanatlı
Although, trauma, foot deformity (pesplanovalgus), systemic diseases such as diabetes mellitus and lupus, drugs (steroids, antineoplastic) and excessive alcohol consumption have all been accused in the etiology of avascular necrosis of the tarsal bones, spontaneous avascular necrosis of the navicular bone, especially in adults, is a rare entity. In this article, we report a 50-year-old female patient with bilateral, spontaneous avascular necrosis of the navicular bone and related severe talonavicular arthrosis...
December 2016: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/27900709/double-locking-precontoured-plating-system-for-malunited-fractures-of-the-distal-end-of-humerus
#6
L Tarallo, R Mugnai, M Rocchi, C Rovesta, F Catani
BACKGROUND: Distal humeral malunions are uncommon injuries, often associated with limited elbow motion, pain, instability, weakness, and sometimes ulnar neuritis. The complex anatomy of the elbow joint makes this condition one of the most complex elbow injuries to treat. MATERIALS AND METHODS: Four patients were treated by the same surgeon between 2011 and 2013 using a double-locking precontoured plating system for malunited intra-articular or extra-articular fractures of the distal end of the humerus...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27896458/prognostic-factors-in-the-treatment-of-carpal-scaphoid-non-unions
#7
F Schuind, F Moungondo, W El Kazzi
In this literature review, the authors analyse the prognostic factors in the curative treatment of scaphoid non-unions. The main negative prognostic factors are smoking, the time elapsed since the fracture, and avascular necrosis of the proximal fragment. If the latter is present, the revascularization by a pedicle or microsurgical bone autograft is probably the treatment of choice. In non-unions without evidence of osteonecrosis, vascularized bone grafts are probably not superior to conventional bone grafts, which can presently be performed under arthroscopic control, with minimal morbidity...
November 28, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27880734/the-role-of-necrosis-acute-hypoxia-and-chronic-hypoxia-in-18-f-fmiso-pet-image-contrast-a-computational-modelling-study
#8
Daniel R Warren, Mike Partridge
Positron emission tomography (PET) using (18)F-fluoromisonidazole (FMISO) is a promising technique for imaging tumour hypoxia, and a potential target for radiotherapy dose-painting. However, the relationship between FMISO uptake and oxygen partial pressure ([Formula: see text]) is yet to be quantified fully. Tissue oxygenation varies over distances much smaller than clinical PET resolution (<100 μm versus  ∼4 mm), and cyclic variations in tumour perfusion have been observed on timescales shorter than typical FMISO PET studies (∼20 min versus a few hours)...
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27876489/morphologic-changes-and-outcomes-after-arthroscopic-acetabular-labral-repair-evaluated-using-postoperative-computed-tomography-arthrography
#9
Jun-Il Yoo, Yong-Chan Ha, Young-Kyun Lee, Guen-Young Lee, Moon-Jib Yoo, Kyung-Hoi Koo
PURPOSE: To investigate smaller sized labra after acetabular labral repair comparing preoperative and postoperative computed tomography arthrography (CTA) and to assess the correlation between the anatomic changes and clinical outcomes. METHODS: The design and protocol of this retrospective study were approved by the institutional review board of our hospital. The inclusion criteria included age older than 18 years and hip pain associated with mechanical symptoms...
November 19, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27872411/osteoporosis-in-pediatric-liver-transplantation
#10
Walid Faraj, Ghina El Nounou, Abdallah Abou Al Naaj, Nancy Nakhoul, Ali Haydar, Mohammad Khalife
Liver transplantation provides an important, often life-saving treatment for end-stage liver disease. Osteoporosis post-liver transplantation has been described in adults; however, this has not been described in the pediatric population to date. We present a case of a 13-year-old female patient who underwent an orthotopic liver transplant for cryptogenic liver cirrhosis. Her immunosuppressants were tacrolimus and prednisone. Four months posttransplant, she started complaining of bilateral lower limb pain and limping while walking, progressing to a point where she was almost immobile...
December 2016: Progress in Transplantation
https://www.readbyqxmd.com/read/27866913/minimally-invasive-plate-osteosynthesis-with-philos-plate-for-proximal-humerus-fractures
#11
Uğur Gönç, Mesut Atabek, Kürşat Teker, Altuğ Tanrıöver
OBJECTIVES: The aim of the present study was to evaluate results, including clinical and radiological outcomes and number of complications, following minimally invasive plate osteosynthesis (MIPO) of proximal humerus fractures, using the PHILOS® proximal humerus internal locking system (Synthes Holding AG, Solothurn, Switzerland). METHODS: Retrospectively evaluated were 31 patients treated with MIPO (12 male, 19 female; average age: 58.4 years). Four patients had 2-part fractures, 14 patients had 3-part fractures, and 13 patients had 4-part fractures, according to Neer classification...
November 18, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27852383/-surgery-of-ipsilateral-hawkins-%C3%A2-talus-neck-and-ankle-joint-fractures-via-internal-and-lateral-approaches-with-herbert-screws
#12
P Zhang, Q R Dong, Z Y Wang, B Chen, J H Wan, L Wang
Objective: To explore the manual operation skills of operative treatment of ipsilateral Hawkins Ⅲ talus neck and ankle joint fractures via internal and lateral approaches with Herbert screws, and to study the clinical results. Method: From Jan 2009 to Dec 2014, the clinical data of 13 patients with ipsilateral Hawkins Ⅲ talus neck and ankle joint fractres via internal and lateral approaches with Herbert screws were retrospectively analyzed in our department.There were 10 males and 3 female, ranging in age from 20 to 60 years with an average age of 31...
November 8, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27847845/long-term-results-functional-outcomes-and-complications-after-open-reduction-and-internal-fixation-of-neglected-and-displaced-greater-tuberosity-of-humerus-fractures
#13
Morteza Nakhaei Amroodi, Vahid Behshad, Paniz Motaghi
BACKGROUND: Humerus fractures include 5% to 8% of total fractures. Non-union and delayed union of GT (GT) fractures is uncommon; however they present a challenge to the orthopedic surgeons. Significant controversy surrounds optimal treatment of neglected fractures. The purpose of this article was to perform a comparative study to evaluate the outcomes of open reduction and internal fixation (ORIF) of neglected GT fractures. METHODS: We retrospectively evaluated the results of surgical intervention in 12 patients with displaced nonunion of GT fractures who were referred to our center...
October 2016: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/27847717/effectiveness-of-lower-energy-density-extracorporeal-shock-wave-therapy-in-the-early-stage-of-avascular-necrosis-of-the-femoral-head
#14
Yong Han, June-Kyung Lee, Bong-Yeon Lee, Hoi-Sung Kee, Kwang-Ik Jung, Seo-Ra Yoon
OBJECTIVE: To evaluate the effectiveness of lower energy flux density (EFD) extracorporeal shock wave therapy (ESWT) in the early stage of avascular necrosis (AVN) of the femoral head. METHODS: Nineteen patients and 30 hips were enrolled. All subjects received 4 weekly sessions of ESWT, at different energy levels; group A (n=15; 1,000 shocks/session, EFD per shock 0.12 mJ/mm(2)) and group B (n=15; 1,000 shocks/session, EFD per shock 0.32 mJ/mm(2)). We measured pain by using the visual analog scale (VAS), and disability by using the Harris hip score, Hip dysfunction and Osteoarthritis Outcome Score (HOOS), and the Western Ontario and McMaster University Osteoarthritis Index (WOMAC)...
October 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/27846045/closed-reduction-for-developmental-dysplasia-of-the-hip-early-term-results-from-a-prospective-multicenter-cohort
#15
Wudbhav N Sankar, Alex L Gornitzky, Nicholas M P Clarke, José A Herrera-Soto, Simon P Kelley, Travis Matheney, Kishore Mulpuri, Emily K Schaeffer, Vidyadhar V Upasani, Nicole Williams, Charles T Price
BACKGROUND: Closed reduction (CR) is a common treatment for infantile developmental dysplasia of the hip. The purpose of this observational, prospective, multicenter study was to determine the early outcomes following CR. METHODS: Prospectively collected data from an international multicenter study group was analyzed for patients treated from 2010 to 2014. Baseline demographics, clinical exam, radiographic/ultrasonographic data, and history of previous orthotic treatment were assessed...
November 11, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/27844160/choice-of-surgical-approach-for-capitellar-fractures-based-on-pathoanatomy-of-fractures-outcomes-of-surgical-management
#16
M R Ravishankar, Malhar N Kumar, Rishikesh Raut
: The understanding of the anatomic configuration of the fractures of the capitellum has enhanced in the last few years, and the classification of these fractures continues to evolve. It is essential to tailor the surgical approaches to these fractures based on the state-of-the-art classifications. Thirty-three patients with fractures of the capitellum were included in this retrospective study. The mean age of the patients was 37.9 years, and the mean follow-up period was 24.6 months...
November 14, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27836527/the-utility-of-magnetic-resonance-imaging-for-bone-involvement-in-gaucher-disease-assessing-more-than-bone-crises
#17
Marcio Andrade-Campos, Esther Valero, Mercedes Roca, Pilar Giraldo
Bone effects are the most frequent cause of disability in Gaucher disease (GD). Magnetic resonance imaging (MRI) has improved the study of bone involvement making it possible to measure the extent of infiltration and to identify localized complications and other lesions. Here we describe the results of our analysis of all bone lesions registered in MRI studies performed in our GD Clinic. A retrospective study was undertaken for all patients with types 1 and 3 GD who underwent MRI evaluation and correlated with clinical, molecular, and other follow-up information obtained from the Spanish GD Registry...
October 21, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27834460/a-randomised-controlled-clinical-study-on-total-hip-arthroplasty-using-4-different-bearings-results-after-10-years
#18
Arne Borgwardt, Bo Zerahn, Sandra D Fabricius, Tine H Bertelsen, Henrik Daugaard, Søren Ribel-Madsen
PURPOSE: To compare 4 different bearings in total hip arthroplasty (THA) in a randomised controlled clinical study on clinical performance. METHODS: 393 patients with osteoarthritis of the hip or avascular necrosis were included and allocated to 1 of the head-and-cup couples zirconia-on-polyethylene (group A), metal-on-metal (group B), zirconia-on-polyethylene with the liner moulded into the shell (group C), or alumina-on-alumina (group D). In the individual case the surgeon could choose other implants if indicated...
November 3, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27834459/histological-changes-of-the-acetabular-labrum-in-coxarthrosis-labral-degeneration-and-repair
#19
Marcin E Domzalski, Marek Synder, Anna Karauda, Wielislaw Papierz
INTRODUCTION: The current study was designed to describe types of histological changes within the acetabular labrum in the advanced stages of coxarthrosis, in patients requiring total hip arthroplasty (THA). METHODS: 77 consecutive patients without systemic disorders or prior hip surgery, scheduled for THA with 3 types of coxarthrosis: avascular necrosis (AVN), idiopathic, and dysplastic coxarthrosis were analysed. Patient's data: age, gender, side of the involvement, duration of the symptoms were recorded, and standard anteroposterior (AP) radiographic views of the pelvis were obtained...
November 9, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27831540/time-trend-and-risk-factors-of-avascular-bone-necrosis-in-patients-with-systemic-lupus-erythematosus
#20
Sau Mei Tse, Chi Chiu Mok
OBJECTIVES: The objective of this paper is to study the time trend and risk factors of avascular bone necrosis (AVN) in patients with systemic lupus erythematosus (SLE). METHODS: Between 1999 and 2014, patients who fulfilled the ACR criteria for SLE and developed symptomatic AVN were identified from our cohort database and compared with those without AVN, matched for age, sex and SLE duration. The standardized incidence ratios (SIRs) of AVN in different SLE age groups were calculated from data derived from our hospital registry and population census...
November 9, 2016: Lupus
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