keyword
MENU ▼
Read by QxMD icon Read
search

'Total hip replacement'

keyword
https://www.readbyqxmd.com/read/28725970/ion-release-in-ceramic-bearings-for-total-hip-replacement-results-from-an-in-vitro-and-an-in-vivo-study
#1
Jan Philippe Kretzer, Ulrike Mueller, Marcus R Streit, Hartmuth Kiefer, Robert Sonntag, Robert M Streicher, Joern Reinders
INTRODUCTION: Literature on the potential release of trace elements following implantation of Zirconia-platelet toughened alumina (ZPTA) ceramic components is scant. The present study therefore analysed the in vitro and in vivo potential release of ions from ZPTA bearings. MATERIAL AND METHODS: An in vitro and in vivo study was conducted. The in vitro study compared leaching in bovine serum from two groups: ZPTA ceramic heads and Co-28Cr-6Mo alloy heads, both 28-mm diameter...
July 20, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28725122/two-incisions-direct-anterior-approach-for-thr-surgical-technique-and-early-outcome
#2
Ritesh Rathi, Idriss Tourabaly, Alexis Nogier
PURPOSE: In recent times the direct anterior approach for total hip replacement has gained considerable interest among orthopaedic surgeons because of the relative muscle-sparing nature than other surgical approaches. However, critics believe that this approach is associated with steep learning curve and high complication rates, mainly attributed to a more limited exposure to the femur. In order to make femoral access easier and implantation of acetabulum in anatomic plane, we designed a "two incisions anterior approach technique" for total hip replacement...
September 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28725121/a-comparison-of-the-omega-and-posterior-approaches-on-patient-reported-function-and-radiological-outcomes-following-total-hip-replacement
#3
James R Berstock, Ashley W Blom, Michael R Whitehouse
BACKGROUND: The omega approach represents a modification of the lateral approach to the hip for joint replacement. It was developed to reduce the potential for gluteus muscle dysfunction and thereby improve functional outcome following hip replacement. METHODS: A cohort of 415 consecutive hip replacements receiving the same type of cemented femoral component were followed up at a mean of three years postoperatively and invited to complete functional outcome and satisfaction scores...
September 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28724376/sonication-contribution-to-identifying-prosthetic-joint-infection-with-ralstonia-pickettii-a-case-report-and-review-of-the-literature
#4
Rares Mircea Birlutiu, Mihai Dan Roman, Razvan Silviu Cismasiu, Sorin Radu Fleaca, Crina Maria Popa, Manuela Mihalache, Victoria Birlutiu
BACKGROUND: In the context of an increase number of primary and revision total hip and total knee arthroplasty performed yearly, an increased risk of complication is expected. Prosthetic joint infection (PJI) remains the most common and feared arthroplasty complication. Ralstonia pickettii is a Gram-negative bacterium, that has also been identified in biofilms. It remains an extremely rare cause of PJI. There is no report of an identification of R. pickettii on an extracted spacer loaded with antibiotic...
July 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28715928/lack-of-evidence-the-anti-stepwise-introduction-of-metal-on-metal-hip-replacements
#5
Aleksi Reito, Lari Lehtovirta, Olli Lainiala, Keijo Mäkelä, Antti Eskelinen
Background and purpose - Orthopedics and especially joint replacement surgery have had more than their fair share of unsuccessful innovations that have violated widely endorsed principles for the introduction of new surgical innovations. We aimed to investigate (1) the trends in the use of the Birmingham Hip Resurfacing (BHR), the ASR hip resurfacing (ASR HRA) and the ASR XL total hip replacement (ASR XL THR) system with very different market approval processes and (2) whether their use was corroborated by clinical trials published in the peer-reviewed literature...
July 18, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28711361/does-crutch-length-influence-gait-parameters-after-total-hip-replacement-surgery
#6
Marco Freddolini, Francesco Esposito, Massimiliano Marcucci, Andrea Corvi, Palmina Braccio, Leonardo Latella
After total hip replacement surgery, crutches are often prescribed to enable patients to walk independently. Purpose of this study was to evaluate possible crutch length influence on gait performance and symmetry, including spatiotemporal and kinetics parameters. Thirty patients were randomly assigned to elbow flexed (EF) or elbow extended (EE) crutch setup. Subjects were asked to walk on the laboratory path, instrumented with motion tracking system and force platforms. Spatiotemporal gait parameters and ground reaction force (GRF) parameters for both limbs and crutch support were evaluated...
July 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28709931/non-invasive-vibrometry-based-diagnostic-detection-of-acetabular-cup-loosening-in-total-hip-replacement-thr
#7
Abdullah A Alshuhri, Timothy P Holsgrove, Anthony W Miles, James L Cunningham
Total hip replacement is aimed at relieving pain and restoring function. Currently, imaging techniques are primarily used as a clinical diagnosis and follow-up method. However, these are unreliable for detecting early loosening, and this has led to the proposal of novel techniques such as vibrometry. The present study had two aims, namely, the validation of the outcomes of a previous work related to loosening detection, and the provision of a more realistic anatomical representation of the clinical scenario...
July 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28709659/in-vivo-hip-joint-loads-and-pedal-forces-during-ergometer-cycling
#8
P Damm, J Dymke, A Bender, G Duda, G Bergmann
The rising prevalence of osteoarthritis and an increase in total hip replacements calls for attention to potential therapeutic activities. Cycling is considered as a low impact exercise for the hip joint and hence recommended. However, there are limited data about hip joint loading to support this claim. The aim of this study was to measure synchronously the in vivo hip joint loads and pedal forces during cycling. The in vivo hip joint loads were measured in 5 patients with instrumented hip implants. Data were collected at several combinations of power and cadence, at two saddle heights...
July 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28707829/-total-hip-arthroplasty-in-patients-younger-than-50-years
#9
Matthieu Zingg, Morgan Gauthier, Didier Hannouche
Total hip replacement can provide pain relief and restore function in patients suffering from hip arthritis, including in those under the age of 50. However, shortened implant longevity in this age group has been a concern because the clinical results after revision surgery are inferior to those after primary hip arthroplasty. Technical choices (approach, implants, type of fixation and bearing couple) must be made to maximise longevity based on published data and thoroughly discussed with the patient. Finally, long term results (clinical outcome and implant longevity) associated with this surgery are such that it appears unnecessary to postpone the surgery once the indication is established...
December 14, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28705605/age-of-menarche-is-associated-with-knee-joint-replacement-due-to-primary-osteoarthritis-the-hunt-study-and-the-norwegian-arthroplasty-register
#10
A I Hellevik, L Nordsletten, M B Johnsen, A M Fenstad, O Furnes, K Storheim, J A Zwart, G Flugsrud, A Langhammer
OBJECTIVE: To investigate whether parity, age at menarche, menopausal status, age at menopause, use of oral contraceptives (OC) or use of hormone replacement therapy (HRT) were associated with total knee replacement (TKR) or total hip replacement (THR) due to primary osteoarthritis. METHOD: In a prospective cohort study of 30,289 women from the second and third surveys of the Nord-Trøndelag Health Study, data were linked to the Norwegian Arthroplasty Register (NAR) in order to identify TKR or THR due to primary osteoarthritis...
July 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28704684/root-mean-square-of-lower-trunk-acceleration-during-walking-in-patients-with-unilateral-total-hip-replacement
#11
Osamu Wada, Tsuyoshi Asai, Yoshinori Hiyama, Shingo Nitta, Kiyonori Mizuno
Although several studies have described abnormal trunk motion before and after total hip arthroplasty (THA) surgery, few studies have examined trunk motion using accelerometry. The aim of this study was to determine whether abnormal trunk motion persisted after THA using accelerometry. A total of 24 female patients (61.0±6.9years) and 20 healthy female subjects (59.9±6.8years) participated in this study. Patients were assessed at 1 month prior to surgery and 12 months after surgery. Trunk acceleration during gait was measured using a triaxial accelerometer attached to the L3 spinous process...
July 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28702399/bilateral-simultaneous-neck-femur-fracture-following-domestic-fall-in-an-elderly-patient-a-rare-case-report
#12
Mayank Vijayvargiya, Vivek Shetty, Kiran Makwana, Nitesh Agarwal
Simultaneous bilateral neck femur fracture is a rare entity that has been associated with underlying bone disease, various metabolic diseases, high-energy trauma, and seizure disorders. Its occurrence following minimal trauma is very rare. This article presents the case of a 66-year-old female who sustained bilateral intracapsular fracture neck femur following a slip and fall at home. Single-stage bilateral cemented total hip replacement was done using a direct lateral approach with alternate right and left lateral positions...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28697400/an-adaptive-finite-element-simulation-of-fretting-wear-damage-at-the-head-neck-taper-junction-of-total-hip-replacement-the-role-of-taper-angle-mismatch
#13
Khosro Fallahnezhad, Reza H Oskouei, Hojjat Badnava, Mark Taylor
An adaptive finite element simulation was developed to predict fretting wear in a head-neck taper junction of hip joint implant through a two dimensional (2D) model and based on the Archard wear equation. This model represents the most critical section of the head-neck junction which was identified from a 3D model of the junction subjected to one cycle of level gait loading. The 2D model was then used to investigate the effect of angular mismatch between the head and neck components on the material loss and fretting wear process over 4 million gait cycles of walking...
July 4, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28685345/thresholds-for-the-oxford-hip-score-after-total-hip-replacement-surgery-a-novel-approach-to-postoperative-evaluation
#14
Nicolai Kjærgaard, Jonas B Kjærsgaard, Christian L Petersen, Michael U Jensen, Mogens B Laursen
BACKGROUND: This is a prospective cohort study to define the thresholds to distinguish patients with a satisfactory or unsatisfactory outcome after total hip replacement (THR) based on patient-reported outcome measures (PROMs) including the Oxford Hip Score (OHS), and using patient satisfaction and patient-perceived function as global transition items. The thresholds are intended to be used as a tool in the process of determining which patients are in need of postoperative outpatient evaluation...
July 6, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28678604/a-post-marketing-assessment-of-major-bleeding-in-total-hip-and-total-knee-replacement-surgery-patients-receiving-rivaroxaban
#15
Louis M Kwong, Alexander G G Turpie, Capt Sally Tamayo, W Frank Peacock, Zhong Yuan, Nicholas Sicignano, Kathleen Pillsbury Hopf, Manesh Patel
BACKGROUND: Rivaroxaban is a novel oral anticoagulant indicated for prophylaxis against deep vein thrombosis and pulmonary embolism in patients undergoing total hip replacement (THR) or total knee replacement (TKR) surgery. OBJECTIVE: To evaluate major bleeding (MB) in THR/TKR patients receiving post-operative rivaroxaban. METHODS: Electronic medical records of nearly 10 million U.S. Department of Defense (DoD) beneficiaries were queried from January 1, 2013 through June 30, 2015...
July 5, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28667590/using-nonlinear-finite-element-models-to-analyse-stress-distribution-during-subluxation-and-torque-required-for-dislocation-of-newly-developed-total-hip-structure-after-prosthetic-impingement
#16
Wei-Min Chi, Chien-Chung Lin, Ying-Jui Ho, Hsiao-Che Lin, Jian-Horng Chen
Dislocation is a serious potential complication of total hip replacement. Previous studies have proposed a newly developed total hip structure that meets the required oscillation angle of 120°, for which the chamfer on the acetabular liner rim was designed to enable the neck to impinge on the chamfer over a large area after impingement occurs. This study adopted the finite element method to further analyse the torque limits leading to dislocation and the contact stresses at the impingement and egress sites of the liner during subluxation...
July 1, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28661563/evaluation-of-a-new-methodology-to-simulate-damage-and-wear-of-polyethylene-hip-replacements-subjected-to-edge-loading-in-hip-simulator-testing
#17
Susan Partridge, Joanne L Tipper, Mazen Al-Hajjar, Graham H Isaac, John Fisher, Sophie Williams
Wear and fatigue of polyethylene acetabular cups have been reported to play a role in the failure of total hip replacements. Hip simulator testing under a wide range of clinically relevant loading conditions is important. Edge loading of hip replacements can occur following impingement under extreme activities and can also occur during normal gait, where there is an offset deficiency and/or joint laxity. This study evaluated a hip simulator method that assessed wear and damage in polyethylene acetabular liners that were subjected to edge loading...
June 29, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28661042/cd11b-promotes-the-differentiation-of-osteoclasts-induced-by-rankl-through-the-spleen-tyrosine-kinase-signalling-pathway
#18
Guoxi Yang, Xiaoyong Chen, Zhao Yan, Qingsheng Zhu, Chongfei Yang
Macrophage surface antigen-1 (Mac-1, CD11b/CD18) has been implicated in the regulation of osteoclastogenesis. In the synovial tissues of patients with aseptic loosening after total hip replacement, CD11b was up-regulated, which indicated that CD11b is closely involved in osteolysis around the prosthesis. We found that CD11b, but not CD18, promoted osteoclast (OC) maturation. Here, we show CD11b up-regulated the levels of spleen tyrosine kinase (Syk), c-Fos and nuclear factor of activated T cells, cytoplasmic-1 (NFATc1), as well as the activity of extracellular-regulated kinase (Erk), and as a result, osteoclast precursors (OCPs) differentiated and became tartrate-resistant acid phosphatase (TRAP)-positive...
June 29, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28660436/adventure-sports-and-sexual-freedom-hip-replacement-the-tripolar-hip
#19
James W Pritchett
Certain athletic activities and lifestyles require a completely stable and very mobile hip. Total hip replacement with a natural femoral head size and two mobile-bearing surfaces (i.e., a "tripolar" prosthesis) is the most stable prosthesis. Elegant design and wear-resistant bearing surfaces are the keys to long-term implant survivorship. The hypothesis is that a ceramic-coated tripolar prosthesis using highly cross-linked polyethylene can provide full function and complete stability with low wear. This study sought to determine: (1) patient-reported outcomes, (2) functional outcomes, (3) implant survivorship and complications, and (4) postoperative sexual limitations...
June 28, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28659053/posterior-hip-approach-yields-better-functional-results-vis-%C3%A3-vis-anterolateral-approach-in-total-hip-arthroplasty-for-patients-with-severe-hip-dysplasia-a-prospective-randomized-controlled-clinical-study
#20
Faruk Mehmet Çatma, Alper Öztürk, Serhan Ünlü, Önder Ersan, Murat Altay
OBJECTIVES: We aimed to compare functional outcomes of two common hip approaches for patients with severe hip dysplasia in total hip replacement (THR) surgery. MATERIALS AND METHODS: Seventy hips of 68 patients randomized into two groups with regard to hip approach as posterior (group I) and anterolateral (group II). All patients underwent THR surgery with femoral shortening osteotomy. The groups were compared for operation time, preoperative and 6 months after abductor muscle strengths (AMSs), gait disorders, union time of the osteotomied site and dislocation rates...
May 2017: Journal of Orthopaedic Surgery
keyword
keyword
22638
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"