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Hip prosthesis

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https://www.readbyqxmd.com/read/27920813/densitometric-evaluation-of-bone-prosthetic-counterface-in-hip-and-knee-arthroplasty-with-modern-implants
#1
Andrea Cozzi Lepri, Marco Giorgini, Carla Signorini, Christian Carulli, Roberto Civinini, Maria Luisa Brandi, Massimo Innocenti
INTRODUCTION: Recent acquisitions of the complex mechanisms of osseointegration between implants and host bone have gained attention, accordingly to the methods of evaluation of these interactions. DEXA analysis is considered an useful tool to assess such phenomena, in order to analyse in a quantitative manner the local metabolic activity of the bone, and to evaluate over the time the integration between host bone and prosthetic components. The purpose of the present study is to report about a preliminary experience in the analysis of osseointegration processes of patients undergoing a primary Total Hip Arthroplasty (THA) or a revision Total Knee Arthroplasty (rTKA)...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27916532/primary-total-hip-arthroplasty-in-catalonia-what-is-the-clinical-evidence-that-supports-our-prosthesis
#2
D Chaverri-Fierro, L Lobo-Escolar, M Espallargues, O Martínez-Cruz, L Domingo, M Pons-Cabrafiga
INTRODUCTION: The implementation of National Prostheses Registries allows us to obtain a large amount of data and make conclusions in order to improve the use of them. Sweden was the first country to implement a National Prostheses Registry in 1979. Catalonia has been doing this since 2005. The aim of our study is to analyse the evidence that supports primary total hip replacement in Catalonia in the last 9 years, based on the Arthroplasty Registry of Catalonia (RACat). MATERIAL AND METHODS: A review of the literature was carried out of the prosthesis (acetabular cups/stems) reported in the RACat between the period 2005 to 2013 in the following databases: ODEP (Orthopaedic Data Evaluation Panel), TRIP database, PubMed, and Google Scholar...
December 1, 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/27915374/long-term-functional-and-radiological-outcomes-of-allograft-hip-prosthesis-composite-a-fourteen%C3%A2-year-follow-up-study
#3
Arnaud Dubory, Eric Mascard, Méryl Dahan, Philippe Anract, Charles Court, Stéphane Boisgard, Brice Viard, Gilles Missenard
PURPOSE: Allograft hip composite prosthesis (APC) is a type of reconstruction after resection of the proximal femur. This study aimed to assess long-term outcomes after an APC reconstruction. MATERIALS AND METHODS: Forty-six patients were retrospectively included (14 revision total hip replacements, 30 primary malignant bone tumors, two metastasis). RESULTS: The mean length of femoral bone resection was 16.4 cm (7 to 27). With a mean follow-up of 14...
December 3, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27912753/radiographic-evaluation-of-early-periprosthetic-acetabular-bone-contrast-and-prosthetic-head-acetabular-coverage-after-uncemented-and-cemented-total-hip-prosthesis-in-dogs
#4
Ayman A Mostafa, Karin Lucas, Ingo Nolte, Patrick Wefstaedt
BACKGROUND: Coxofemoral osteoarthritis is a chronic, disabling condition affecting people and dogs, with THA providing an excellent return to function in severely affected joints. The principal role of THA is to restore an adequate range of motion to the hip joint while transferring load from the acetabulum in order to improve the survival of the implant and enhance the limb function in the short and long terms. The objectives of the study reported here were, therefore, to radiographically evaluate periprosthetic acetabular bone GV and to assess prosthetic head acetabular coverage after 4 months of uncemented and cemented THA in dogs...
December 3, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27904221/what-have-we-learned-from-100-success-of-press-fit-condylar-rotating-platform-posterior-stabilized-knees-a-5-10-years-followup-by-a-nondesigner
#5
Shrinand V Vaidya, Siddharth Virani, Rajendra Phunde, Abhishek Mahajan
BACKGROUND: Total joint arthroplasties of the hip and knee represent a remarkable feat of modern medicine in terms of reducing pain and restoring function to millions of patients afflicted with severe arthritis. Oftentimes, the performance and longevity of new implants and devices are based on limited data. This is the first study by a non-designer on the press fit condylar rotating platform posterior stabilized (PFC-RP-PS) design with 100' success. This has a relevance, vis-á -vis bias that one may have in terms of reproducibility of technique and funding from the manufacturer...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27900474/bone-scan-usefulness-in-patients-with-painful-hip-or-knee-prosthesis-10-situations-that-can-cause-pain-other-than-loosening-and-infection
#6
REVIEW
Sofia Vaz, Teresa C Ferreira, Lucília Salgado, Frédéric Paycha
In recent years, with the higher median life expectancy, the number of hip and knee replacements has increased. Clinical examination and morphological studies are essential to evaluate patients with a painful arthroplasty. Nuclear medicine examinations also play an important role, their main usefulness being the exclusion of prosthesis complications. Nevertheless, conventional examinations, namely bone scan and white blood cell scintigraphy, can also identify complications, such as loosening and infection. This study describes the normal and pathologic patterns of a bone scan and exemplifies ten common situations that can cause pain in patients with hip or knee arthroplasty, other than loosening and infection, which can be disclosed on a bone scintigraphy...
November 30, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27896435/course-of-pelvic-lift-during-total-hip-arthroplasty
#7
Steffen Brodt, Dimitri Nowack, Linda Krakow, Christoph Windisch, Georg Matziolis
INTRODUCTION: The position of the cup makes a major contribution to the success of total hip arthroplasty (THA). In conventional implantation of the prosthesis without navigation, the surgeon relies on the spatial position of the pelvis. However, iatrogenic manipulation of the pelvis during different surgical steps constantly changes the position of the pelvis during the operation. The position of the pelvis is substantial for the correct placement of the cup. The objective of this study was to investigate and visualize the course of this pelvic lift and correlate it to certain surgical steps...
November 28, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27890840/infected-iliac-pseudoaneursym-after-cardiac-catheterization-complicated-by-girdlestone-pseudoarthroplasty-for-recurrent-infection-of-hip-prosthesis
#8
Christopher Horn, Victoria Wang, Michael Williams, Donald Jacobs
We report a massive infected pseudoaneurysm of the right external iliac artery in the setting of Girdlestone pseudoarthroplasty (GSA) for chronic infection. Around the time of her GSA the patient underwent cardiac catheterization with resultant pseudoaneurysm formation. Infection was likely due to spread from her previous chronic infection. Delay in presentation occurred due to attribution of her symptoms to her GSA. The patient underwent ligation of the right external iliac artery and hip disarticulation and was discharged on antibiotics...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890623/sirt1-protects-osteoblasts-against-particle-induced-inflammatory-responses-and-apoptosis-in-aseptic-prosthesis-loosening
#9
Zhantao Deng, Zhenheng Wang, Jiewen Jin, Yong Wang, Nirong Bao, Qian Gao, Jianning Zhao
: We hypothesized that SIRT1 downregulation in osteoblasts induced by wear particles was one of the reasons for particle-induced osteolysis (PIO) in total joint arthroplasty failure. In the present study, the expression of SIRT1 was examined in osteoblasts treated with TiAl6V4 particles (TiPs) and CoCrMo particles (CoPs) from materials used in prosthetics and specimens from PIO animal models. To address whether SIRT1 downregulation triggers inflammatory responses and apoptosis in osteoblasts, the effect of a SIRT1 activator, resveratrol on the expression of inflammatory cytokines and apoptosis in particle-treated osteoblasts was tested...
November 23, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27889839/what-is-the-fate-of-the-neck-after-a-collum-femoris-preserving-prosthesis-a-nineteen-years-single-center-experience
#10
Matteo Formica, Luca Cavagnaro, Marco Basso, Andrea Zanirato, Augusto Palermo, Lamberto Felli
PURPOSE: The aim of our study is to evaluate long-term outcomes from a cohort of patients treated with collum femoris preserving (CFP) stem correlating neck resorption with comorbidities, clinical outcomes, and complications. METHODS: One hundred seventy-six patients (194 hips) were retrospectively reviewed with a minimum follow-up (f.u.) of ten years. Demographic and surgical data were collected. Clinical and radiological evaluation was performed at the last follow up...
November 26, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27886361/comparison-of-anatomic-vs-straight-femoral-stem-design-in-total-hip-replacement-femoral-canal-fill-in-vivo
#11
Friso A de Boer, Elhadi Sariali
INTRODUCTION: The femoral canal fill between an anatomic and a straight prosthesis design in cementless total hip arthroplasty (THA) was compared. We hypothesised that the anatomic SPS stem has higher proximal fill and lesser distal fill than the straight stem. MATERIAL AND METHODS: The femoral canal fill was measured on 3 months routine postoperative x-rays at 5 levels of the stem in 50 consecutive patients, aged 35-83 years, who underwent 56 THA procedures by a single surgeon in this hospital...
November 22, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27883369/acinetobacter-prosthetic-joint-infection-treated-with-debridement-and-high-dose-tigecycline
#12
Andrea Vila, Hugo Pagella, Claudio Amadio, Alejandro Leiva
Prosthesis retention is not recommended for multidrug-resistant Acinetobacter prosthetic joint infection due to its high failure rate. Nevertheless, replacing the prosthesis implies high morbidity and prolonged hospitalization. Although tigecycline is not approved for the treatment of prosthetic joint infection due to multidrug resistant Acinetobacter baumannii, its appropriate use may preclude prosthesis exchange. Since the area under the curve divided by the minimum inhibitory concentration is the best pharmacodynamic predictor of its efficacy, we used tigecycline at high dose, in order to optimize its efficacy and achieve implant retention in 3 patients who refused prosthesis exchange...
November 8, 2016: Infection & Chemotherapy
https://www.readbyqxmd.com/read/27878334/equivalent-wear-performance-of-dual-mobility-bearing-compared-with-standard-bearing-in-total-hip-arthroplasty-in-vitro-study
#13
Gaël Gaudin, André Ferreira, Romain Gaillard, Jean Louis Prudhon, Jacques H Caton, Sébastien Lustig
PURPOSE: Osteolysis in total hip arthroplasty (THA) depends on polyethylene wear and dictates the survival of the prosthesis. Dual mobility in THAs, which is claimed to reduce dislocation risk, has very good long-term clinical results. However, little is known about how the liner wears in this design, compared to the standard single mobility model. METHODS: A comparative study looking at wear of a conventional ultra-high-molecular-weight polyethylene liner, using gravimetric measurement, between dual mobility implants and standard implants, was performed on a simulator in accordance with a normed protocol based on the same dimensions, environmental conditions and stresses...
November 22, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27876030/long-term-outcomes-following-lower-extremity-press-fit-bone-anchored-prosthesis-surgery-a-5-year-longitudinal-study-protocol
#14
Ruud A Leijendekkers, J Bart Staal, Gerben van Hinte, Jan Paul Frölke, Hendrik van de Meent, Femke Atsma, Maria W G Nijhuis-van der Sanden, Thomas J Hoogeboom
BACKGROUND: Patients with lower extremity amputation frequently suffer from socket-related problems. This seriously limits prosthesis use, level of activity and health-related quality of life (HRQoL). An additional problem in patients with lower extremity amputation are asymmetries in gait kinematics possibly accounting for back pain. Bone-anchored prostheses (BAPs) are a possible solution for socket-related problems. Knowledge concerning the level of function, activity and HRQoL after surgery is limited...
November 22, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27866217/osteonecrosis-of-the-jaw-onj-and-atypical-femoral-fracture-aff-in-an-osteoporotic-patient-chronically-treated-with-bisphosphonates
#15
A Sánchez, R Blanco
The aim of the study is to report the rare association of two complications of long-term treatment of osteoporosis with bisphosphonates in the same Caucasian elderly patient. A female patient of Italian descent, age 87 years, consulted in February 2013. She had a history of osteoporosis and had taken alendronate weekly for 7 years (1999-2006). Due to low back pain, an orthopedist had indicated i.v. zoledronic acid, 5 mg/year for 3 years (2006-2008). She received occasional supplements of ergocalciferol...
November 20, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27866037/preoperative-preparation-of-a-patient-with-grade-ii-leg-lymphedema-for-his-third-hip-replacement-surgery
#16
Maria de Fátima Guerreiro Godoy, Livia Maria Pereira de Godoy, Renata Lopes Pinto, Jose Maria Pereira de Godoy
INTRODUCTION: The treatment of lymphedema remains a challenge to modern medicine, due to the characteristics of the disease. CASE PRESENTATION: Report on the case of a 75-year-old patient with lower limb lymphedema for treatment prior to surgery. At age 45, he made the first hip replacement surgery in the left leg. One year later he performed the same surgery on the right leg. At that time his legs had slight ankle edema mainly of the left leg and the entire left leg was affected by lymphedema...
September 28, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27864564/hierarchical-structure-and-importance-of-patients-reasons-for-treatment-choices-in-knee-and-hip-osteoarthritis-a-concept-mapping-study
#17
Ellen M H Selten, Rinie Geenen, Willemijn H van der Laan, Roelien G van der Meulen-Dilling, Henk J Schers, Marc W Nijhof, Cornelia H M van den Ende, Johanna E Vriezekolk
OBJECTIVES: To improve patients' use of conservative treatment options of hip and knee OA, in-depth understanding of reasons underlying patients' treatment choices is required. The current study adopted a concept mapping method to thematically structure and prioritize reasons for treatment choice in knee and hip OA from a patients' perspective. METHODS: Multiple reasons for treatment choices were previously identified using in-depth interviews. In consensus meetings, experts derived 51 representative reasons from the interviews...
November 17, 2016: Rheumatology
https://www.readbyqxmd.com/read/27859357/postoperative-ambulatory-performance-status-significantly-affects-implant-failure-rate-among-surgical-treatment-strategies-in-patients-with-proximal-femur-metastasis
#18
Shang-Wen Tsai, Po-Kuei Wu, Cheng-Fong Chen, Ming-Chau Chang, Wei-Ming Chen
Surgical treatment strategies for proximal femur metastasis have been reported with mixed results. Little is known about risk factor for implant failure except for longer patient survival. Therefore, we determined whether implant survivorship differed among treatment strategies, as well as risk factors for implant failure. We retrospectively reviewed a consecutive 106 patients with proximal femur metastasis treated with prosthesis replacement (n = 38), intramedullary nail (n = 32), and dynamic hip screw (DHS) (n = 36)...
November 8, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27855612/99mtc-labeled-white-blood-cell-scan-as-a-guide-to-open-biopsy-in-the-management-of-hip-and-knee-prosthesis-infection-preliminary-results
#19
Mauro Liberatore, Giuseppe Gentile, Giulia Anna Follacchio, Viviana Frantellizzi, Giuseppe De Vincentis, Francesco Monteleone, Christos Anagnostou, Francesco Maria Drudi, Vittorio Calvisi
The aim of the present prospective study was to evaluate the usefulness of labeled leukocyte scan as a guide to open biopsy for the management of hip and knee prosthesis infection in patients without loosening of orthopedic device. Twenty-six patients with suspected hip (24) and knee (2) prosthesis infection underwent routine analysis of blood, plain radiography and 99m Tc-HMPAO labelled leukocyte scan (WBCS). On these basis, patients were subdivided in the following groups: bone infection without loosening (n°=14), septic loosening (n°=8), superficial infection (n°=2), no infection (n°=2)...
November 17, 2016: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/27853130/health-related-quality-of-life-and-functional-outcomes-in-short-stem-versus-standard-stem-total-hip-arthroplasty-an-18-month-follow-up-cohort-study
#20
Brandon Michael Henry, Waldemar Wrażeń, Leif Hynnekleiv, Michał Kłosiński, Przemysław A Pękała, Ewa Kucharska, Edward B Golec, Krzysztof A Tomaszewski, Maria Pąchalska
BACKGROUND Osteoarthritis (OA) progressively produces symptoms and disability that may significantly reduce health-related quality of life (HRQoL). Total hip arthroplasty (THA) is an important treatment for symptomatic OA. An alternative to standard-stem THA for younger patients is short-stem THA. The aim of this study was to investigate potential HRQoL and functional outcome differences between these patient groups to provide additional data that will be clinically useful in the decision making between the types of prosthesis...
November 17, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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