keyword
MENU ▼
Read by QxMD icon Read
search

Endoprosthesis

keyword
https://www.readbyqxmd.com/read/29132328/posterior-shoulder-dislocation-with-associated-reverse-hill-sachs-lesion-treatment-options-and-functional-outcome-after-a-5-year-follow-up
#1
Markus Guehring, Simon Lambert, Ulrich Stoeckle, Patrick Ziegler
BACKGROUND: The current study describes several surgical techniques for the treatment of the reverse Hill - Sachs lesion after posterior shoulder dislocation; we also aimed to present long term results followed for a minimum of five years. METHODS: This study is a prospective case series of 17 patients who were treated in our clinic between 2008 and 2011. Patients with a defect size smaller than 25% of the articular surface were treated conservatively. An endoprosthesis of the glenohumeral joint was implanted in patients with a defect size bigger than 40%...
November 13, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29123414/low-grade-central-osteosarcoma-in-proximal-humerus-a-rare-entity
#2
Fan Tang, Li Min, Yong Zhou, Yi Luo, Chongqi Tu
Low-grade central osteosarcoma is a rare subtype of tumor with low-grade malignancy. Currently, wide resection with negative resection margin is the standard treatment for this disease. The role of neoadjuvant chemotherapy in low-grade central osteosarcoma was controversial and was mostly considered for tumors containing high-grade focal areas. Local tumor recurrences often exhibited a tumor with higher histologic grade or differentiation with the potential for metastases. In low-grade central osteosarcoma, timely wide resection after definite diagnosis can result in 5-year survival for almost 90%...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29113670/primary-arthroplasty-in-healed-osteoarticular-allograft-in-patients-with-history-of-primary-femoral-bone-tumors
#3
Bianca M Verbeek, Courtney L Kaiser, Nuno Rui Paulino Pereira, Francis J Hornicek, Kevin A Raskin, Joseph H Schwab, Santiago A LozanoCalderón
BACKGROUND: Roughly 25-35% of patients who are treated with osteoarticular allograft for primary bone sarcomas or aggressive benign bone tumors require surgery in the long-term due to degenerative changes of the articular surface of the allograft. There are three established methods of reconstruction for this complication; a total hip arthroplasty (THA) or total knee arthroplasty (TKA) in the retained osteoarticular allograft, a proximal or distal endoprosthesis after removal of the allograft, and an allograft-prosthesis composite (APC)...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29113159/treatment-of-osteosarcoma-around-the-knee-in-skeletally-immature-patients
#4
Weitao Yao, Qiqing Cai, Jiaqiang Wang, Songtao Gao
Limb sparing surgery in growing young patients with malignant tumors is difficult as invasion of the physis by the tumor or surgical resection through the metaphysis may cause significant limb discrepancy following surgery. At present, hinged tumor prosthesis or biological reconstructions are the main methods following tumor resection in these patients. The aim of the present study was to assess different procedures for the treatment of osteosarcoma around knee joints in immature patients. A retrospective study of 56 patients (<15 years old, open physis) who had been treated for osteosarcoma around the knee joint between January 2007 and December 2015 was performed...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29100185/numerical-evaluation-of-bone-remodelling-and-adaptation-considering-different-hip-prosthesis-designs
#5
Ievgen Levadnyi, Jan Awrejcewicz, José Eduardo Gubaua, Jucélio Tomás Pereira
BACKGROUND: The change in mechanical properties of femoral cortical bone tissue surrounding the stem of the hip endoprosthesis is one of the causes of implant instability. We present an analysis used to determine the best conditions for long-term functioning of the bone-implant system, which will lead to improvement of treatment results. METHODS: In the present paper, a finite element method coupled with a bone remodelling model is used to evaluate how different three-dimensional prosthesis models influence distribution of the density of bone tissue...
October 18, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29081066/long-term-outcomes-of-cement-in-cement-technique-for-revision-endoprosthesis-surgery
#6
Nicholas M Bernthal, Vishal Hegde, Stephen D Zoller, Howard Y Park, Jason H Ghodasra, Daniel Johansen, Frederick Eilber, Fritz C Eilber, Chandhanarat Chandhanayingyong, Jeffrey J Eckardt
BACKGROUND AND OBJECTIVE: Cemented endoprosthetic reconstruction after resection of primary bone sarcomas has been a standard-of-care option for decades. With increased patient survival, the incidence of failed endoprostheses requiring revision surgery has increased. Revision of cemented endoprotheses by cementing into the existing cement mantle (CiC) is technically demanding. METHODS: This is a retrospective review of our endoprosthesis database of 512 consecutive cemented endoprosthetic reconstructions performed for oncologic diagnoses between 1980 and 2014...
October 29, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29072235/reconstruction-of-lower-extremity-primary-malignant-and-metastatic-bone-tumours-with-modular-endoprosthesis
#7
H Sezgin, A Çıraklı, H Göçer, N Dabak
INTRODUCTION: This study is aimed to assess the functional results of cases with lower extremity malignant and metastatic bone tumours that were treated with modular tumour resection prostheses. MATERIALS AND METHODS: 49 patients were retrospectively examined. 27 (55.1%) patients had a primary bone tumour, and 22 (44.9%) had a metastatic bone tumour. Although most tumours located in the proximal femur were metastatic, tumours located around the knee were mostly primary malignant bone tumours...
September 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29071514/-destruction-of-the-radial-head-endoprosthesis-autologous-reconstruction-or-anconeus-arthroplasty
#8
REVIEW
K J Burkhart, F Gohlke, R Nietschke, M M Schneider, B Hollinger
BACKGROUND: Radiocapitellar arthritis or defects most often result from trauma. Most of the patients are young and have high functional demands with high load capacities. Therefore, endoprosthetic options should be postponed for as long as possible. If conservative treatment cannot relieve symptoms sufficiently, radial head preservation, resection or replacement options are at the surgeon's disposal. In early stages of radiocapitellar arthritis, radial head preservation options can be taken into account...
October 25, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29043506/fatigue-failure-of-the-cephalomedullary-nail-revision-options-outcomes-and-review-of-the-literature
#9
Adam Tucker, Michael Warnock, Sinead McDonald, Laurence Cusick, Andrew P Foster
Cephalomedullary nail (CMN) failure is a rare entity following hip fracture treatment. However, it poses significant challenges for revision surgery, both mechanically and biologically. Nail failure rates have been reported at < 2%; however, no published studies have reported revision surgery procedures and their respective outcomes. We present a regional experience, with outcomes, of the revision options. We identified 20 fatigued CMNs that underwent four different revision procedures. Mean age was 73 ± 15...
October 17, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29033156/component-fracture-in-the-kotz-modular-femoral-tibial-reconstruction-system-an-under-reported-complication
#10
Tyler M Hauer, Matthew T Houdek, Rej Bhumbra, Anthony M Griffin, Jay S Wunder, Peter C Ferguson
BACKGROUND: Primary bone tumors of the femur are commonly reconstructed using an endoprosthesis. Different modes of implant failure have been described, including structural failure; although uncommon, this may be an under-reported complication. The purpose of this study is to examine the rates and risk factors for implant fracture of the Kotz Modular Femoral Tibial Reconstruction system (KMFTR). METHODS: Two hundred twenty-one patients (95 women and 126 men) who underwent a KMFTR reconstruction were reviewed...
September 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29025610/is-endoprosthesis-safer-than-internal-fixation-for-metastatic-disease-of-the-proximal-femur-a-systematic-review
#11
Alberto Di Martino, Nicolò Martinelli, Mattia Loppini, Andrea Piccioli, Vincenzo Denaro
INTRODUCTION: Metastases to the proximal femur are usually managed surgically by tumor resection and reconstruction with an endoprosthesis, or by fixation with osteosynthesis. Still controversy remains regarding the most appropriate surgical treatment. We posed the following questions: (1) Is the frequency of surgical revision greater in patients treated with internal fixation than endoprosthetic reconstruction, and (2) Do complications that do not require surgery occur more frequently in patients treated with internal fixation rather than in those with endoprosthetic reconstruction? MATERIALS AND METHODS: A systematic review was performed of those studies reporting on surgical revision and complication rates comparing the two surgical methods...
October 2017: Injury
https://www.readbyqxmd.com/read/28990681/limb-shortening-as-a-strategy-for-limb-sparing-treatment-of-appendicular-osteosarcoma-of-the-distal-radius-in-a-dog
#12
Sarah E Boston, Owen T Skinner
OBJECTIVE: To develop and report a novel limb sparing technique for the distal radius in a dog. STUDY DESIGN: Case report. ANIMAL: A 14-year-old, female spayed Labrador Retriever with an osteosarcoma of the right distal radius and a pathological fracture. A previous mast cell tumor had been treated 5 years prior to presentation with marginal excision and a full-course radiation over the right metacarpal bones. The dog had received 2 doses of palliative radiation just prior to presentation...
October 9, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28982066/modification-of-ti6al4v-surface-by-diazonium-compounds
#13
Mariusz Sandomierski, Tomasz Buchwald, Beata Strzemiecka, Adam Voelkel
Ti6Al4V alloy is the most commonly used in orthopedic industry as an endoprosthesis. Ti6Al4V exhibits good mechanical properties, except the abrasion resistance. Surface modification of Ti6Al4V in order to obtain organic layer, and then the attachment of the polymer, can allow for overcoming this problem. The aim of the work was the modification of Ti6Al4V surface by diazonium compounds: salt or cation generated in situ and examine the influence of the reducing agent - ascorbic acid, and the temperature of reaction on modification process...
September 28, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28980174/a-24-month-evaluation-of-a-percutaneous-osseointegrated-limb-skin-interface-in-an-ovine-amputation-model
#14
Sujee Jeyapalina, James Peter Beck, Jayant Agarwal, Kent N Bachus
Percutaneous osseointegrated (OI) prostheses directly connect an artificial limb to the residual appendicular skeleton via a permanently implanted endoprosthesis with a bridging connector that protrudes through the skin. The resulting stoma produces unique medical and biological challenges. Previously, a study using a large animal amputation model indicated that infection could be largely prevented, for at least a 12-month period, but the terminal epithelium continued to downgrow. The current study was undertaken to test the longer-term efficacy of this implant construct to maintain a stable skin-implant interface for 24 months...
October 4, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28970004/intercalary-diaphyseal-endoprosthetic-reconstruction-for-tibial-septic-non-union-in-an-elderly-patient-a-case-report
#15
Y Herry, O Reynaud, T Ferry, E Servien, P Neyret, S Lustig
The surgical treatment of septic non-union is challenging and carries a high failure rate. Bone defect management and fracture site stabilisation are key treatment objectives. We report the case of a 75-year-old woman who underwent intercalary endoprosthetic reconstruction of a large tibial defect due to septic non-union after two previous treatment failures. The two-stage procedure involved extensive excision of infected tissues and implantation of an antibiotic-loaded cement spacer followed by insertion of an intercalary endoprosthesis...
September 29, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28947215/emergent-endovascular-treatment-of-thoraco-abdominal-aortic-rupture-in-behcet-s-disease
#16
Enrico Maria Marone, Domenico Antonio Diaco, Chiara Brioschi, Angelo Argenteri
PURPOSE: Endovascular approach with parallel graft technique can be a valid solution in emergency setting for the treatment of thoraco-abdominal aorta involvement in Behcet's disease. CASE REPORT: we describe the clinical case of a 41-year-old man, urgently hospitalized for a rupture of thoraco-abdominal aorta with occlusion of the celiac trunk and involvement of superior mesenteric artery. The patient also presented a massive right hemothorax and a massive left pulmonary thromboembolism...
September 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28943007/thoracic-endovascular-aortic-repair-migration-and-aortic-elongation-differentiated-using-dual-reference-point-analysis
#17
Hillary B Alberta, Toshio Takayama, Annalise Panthofer, Richard P Cambria, Mark A Farber, William D Jordan, Jon S Matsumura
OBJECTIVE: We evaluated images of patients undergoing a thoracic endovascular aortic repair procedure using two reference points as a means for differentiating stent graft migration from aortic elongation. Conventional standards define migration of a stent graft as an absolute change in the distance from the distal graft ring to a distal landmark ≥10 mm compared with a baseline measurement. Aortic elongation occurs over time in both healthy individuals and patients with aortic disease...
September 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28934543/long-term-results-of-intercalary-endoprosthetic-short-segment-fixation-following-extended-diaphysectomy
#18
Nicholas S Tedesco, Alexandra L Van Horn, Robert M Henshaw
Intercalary endoprosthetic reconstruction following diaphyseal resection of osseous tumors offers functional advantages through preservation of native joints adjacent to the resected defect. Use of such implants is restricted by the amount of bone available for stem fixation adjacent to the defect. This study aimed to determine whether short osseous segment fixation with acceptable outcomes and complication rate can be reliably achieved with a customized intercalary endoprosthesis following extended diaphysectomy...
September 21, 2017: Orthopedics
https://www.readbyqxmd.com/read/28894615/chronic-osteomyelitis-of-the-distal-femur-treated-with-resection-and-delayed-endoprosthetic-reconstruction-a-report-of-three-cases
#19
Sean Ryan, William Eward, Brian Brigman, Robert Zura
Chronic osteomyelitis involving the distal femur often results in amputation or arthrodesis. This article presents three cases of chronic osteomyelitis treated with a staged approach culminating in endoprosthetic reconstruction. Stage one involved resection of infected bone and placement of an intramedullary nail spanning the bony defect between proximal femur and tibia, with antibiotic cement packed around the nail. Patients were then placed on long-term IV +/- oral antibiotics to clear the infection. A "cooldown" period was then used between stages where patients were off antibiotics and inflammatory markers were monitored for signs of remaining infection...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28893706/hypertension-acute-stent-thrombosis-and-paraplegia-6%C3%A2-months-after-thoracic-endovascular-aortic-repair-for-blunt-thoracic-aortic-injury-in-a-22-year-old-patient
#20
Ombretta Martinelli, Federico Faccenna, Alban Malaj, Jihad Jabbour, Salvatore Venosi, Roberto Gattuso, Bruno Gossetti, Luigi Irace
Thoracic endovascular aortic repair (TEVAR) is a less invasive option for managing traumatic injuries of the descending aorta in polytraumatized patients. Concerns arise when treating young patients with TEVAR. A 22-year-old male was admitted to the emergency department following a high-impact road traffic collision. Whole-body computed tomography (CT) scan documented multiple injuries, including rupture of descending thoracic aorta just below the isthmus. There was no evidence of paraplegia or stroke. We decided to treat him in an endovascular fashion with a Zenith Cook (Cook Incorporated, Bloomington, IN) endograft...
September 9, 2017: Annals of Vascular Surgery
keyword
keyword
68299
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"