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Modular hip arthroplasty

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https://www.readbyqxmd.com/read/29166684/-implantation-of-a-modular-distal-femoral-replacement-with-compressive-osseointegration-as-a-salvage-procedure-in-a-complex-femoral-posttraumatic-setting
#1
Anna Janine Schreiner, Peter Marten de Zwart, Christian Arnscheidt, Ulrich Stöckle, Björn Gunnar Ochs
Background Large bone defects and losses play a crucial role in both tumour surgery and in complex primary and revision total knee replacement. The established options of cemented or uncemented long intramedullary stems are limited by large bone defects and are at risk from relatively high exposure to aseptic loosening. There is no general valid agreement on implant fixation of the distal femur. A further option is the cementless fixation method with compressive osseointegration, based on the so-called Wolff law of bone remodelling...
November 22, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29152495/midterm-outcomes-of-titanium-modular-femoral-necks-in-total-hip-arthroplasty
#2
Thurial Collet, Jean-Pierre Atanasiu, Jean-Baptiste de Cussac, Kamal Oufroukhi, Hugo Bothorel, Mo Saffarini, François Badatcheff
Background: Modular femoral necks present surgical and biomechanical advantages in total hip arthroplasty (THA), but their benefits remain controversial due to risks of corrosion and fracture at the additional junction. This study aimed to report 10-year survival and clinical outcomes of a titanium femoral stem with a titanium modular neck in consecutive series. Methods: The authors reviewed the records of 97 patients (99 THAs) using uncemented modular stem and ceramic-on-ceramic acetabular components...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29113756/fretting-and-corrosion-damage-in-retrieved-metal-on-polyethylene-modular-total-hip-arthroplasty-systems-what-is-the-importance-of-femoral-head-size
#3
Matthew P Siljander, Erin A Baker, Kevin C Baker, Meagan R Salisbury, Clayton C Thor, James J Verner
BACKGROUND: Fretting and corrosion at the modular femoral head-femoral neck (taper) interface have been reported in retrieved total hip arthroplasty (THA) prostheses. This study investigated associations among implant design, radiographic factors, and patient factors with corrosion and fretting at the taper interface in retrieved metal-on-polyethylene modular THA prostheses. METHODS: Ninety-two retrieved primary metal-on-polyethylene THA implants were evaluated and graded for fretting, corrosion, and damage at the taper interface, including the femoral stem trunnion and femoral head...
October 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29100204/finite-element-wear-prediction-using-adaptive-meshing-at-the-modular-taper-interface-of-hip-implants
#4
Thom Bitter, Imran Khan, Tim Marriott, Elaine Lovelady, Nico Verdonschot, Dennis Janssen
The use of modular components in total hip arthroplasty introduced an additional interface with the potential for fretting and corrosion to occur. Fretting and corrosion at this interface have been reported as a potential cause of early failure of the implant system. Using finite element (FE) analyses the mechanics at the taper junction can be studied. However, most FE studies are based on a single load condition and do not take geometry changes over time into account. Therefore, in this study an FE routine was developed, in which adaptations to the implant geometry are made to account for material removal during the fretting process...
October 27, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29099882/management-and-prevention-of-intraoperative-acetabular-fracture-in-primary-total-hip-arthroplasty
#5
Jonathon M Brown, Kevin S Borchard, Claire E Robbins, Daniel M Ward, Carl T Talmo, James V Bono
Intraoperative acetabular fracture (IAF) is a rare complication of primary total hip arthroplasty (THA). Known risk factors include poor bone stock, underreaming of the acetabular bed, and use of elliptic components. There is a paucity of literature on risk factors, treatment strategies, and outcomes of this potentially devastating complication. We studied the incidence of IAF in primary THA at our high-volume institution. We reviewed 21,519 primary THA cases and identified 16 patients (16 hips) with IAFs. Mean follow-up was 4 years (range, 0-10 years)...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29092984/outcomes-following-debridement-antibiotics-and-implant-retention-in-the-management-of-periprosthetic-infections-of-the-hip-a-review-of-cohort-studies
#6
S-T J Tsang, J Ting, A H R W Simpson, P Gaston
AIMS: The aims of the study were to review and analyse the reported series of debridement, antibiotics and implant retention (DAIR) in the management of infected total hip arthroplasties (THAs) to establish the overall success and the influencing factors. PATIENTS AND METHODS: Using a standardised recognised study protocol, meta-analysis of observational studies in epidemiology guidelines, a comprehensive review and analysis of the literature was performed. The primary outcome measure was the success of treatment...
November 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/29082427/cementless-modular-neck-stems-are-they-a-safe-option-in-primary-total-hip-arthroplasty
#7
José M Pelayo-de-Tomás, José L Rodrigo-Pérez, Carlos D Novoa-Parra, Alejandro Lizaur-Utrilla, María Morales-Suárez-Varela, José Antonio Blas-Dobón
PURPOSE: The objective was to assess aseptic complications and functional outcome using a primary total hip arthroplasty with modular neck. METHODS: Prospective cohort of 317 consecutive patients. The mean age was 61.1 (range, 41-84) years. The H-Max-M model (Lima, Italy) system was used in all patients. The functional assessment was made by the Harris Hip Score, Short Form-36 (SF-36), Western Ontario and McMaster Universities Osteoarthritis Index and visual analogue scale for pain...
October 29, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29033155/does-the-additional-articulation-in-retrieved-bipolar-hemiarthroplasty-implants-decrease-trunnionosis-compared-to-total-hip-arthroplasty
#8
Christopher Del Balso, Matthew G Teeter, Sok C Tan, Brent A Lanting, James L Howard
BACKGROUND: Trunnionosis at the modular head-neck taper interface in metal-on-polyethylene total hip arthroplasty (MoP THA) has been shown to occur, and represents a potential mode of MoP THA failure. The purpose of the present investigation is to elucidate differences in fretting and corrosion at the head-neck taper interface of prostheses retrieved from bipolar hemiarthroplasty (BH) and MoP THA. METHODS: A retrieval analysis of BH and MoP THA prostheses featuring a single taper design from a single manufacturer and in vivo for a minimum 2 years was performed...
August 31, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29027190/midterm-results-of-revision-total-hip-arthroplasty-with-an-uncemented-modular-femoral-component
#9
Bertram Rieger, Thomas Ilchmann, Lilianna Bolliger, Karl K Stoffel, Lukas Zwicky, Martin Clauss
INTRODUCTION: During revision total hip arthroplasty (THA), the surgeon commonly faces deficient proximal femoral bone. In this situation, distal fixation of the prosthesis is required. The aim of the current retrospective study is to assess the clinical and radiographic midterm outcome of revision total hip arthroplasty using a modular uncemented, tapered, grit-blasted, distal straight stem system. METHODS: This retrospective study included 70 femoral revisions that were performed in 67 patients using the device of interest...
October 12, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28947371/inferior-radiographic-and-functional-outcomes-with-modular-stem-in-metal-on-metal-total-hip-arthroplasty
#10
Inari Laaksonen, Vincent P Galea, James W Connelly, Sean J Matuszak, Orhun K Muratoglu, Henrik Malchau
BACKGROUND: Data on the association between stem type and metal-on-metal (MoM) total hip arthroplasty (THA) performance are limited. The aim of this study is to investigate the effect of stem type on the prevalence of osteolysis and radiolucency, blood metal ion levels, and functional outcomes in patients with Articular Surface Replacement THA (ASR XL), a type of MoM THA. METHODS: We analyzed 539 unilateral MoM THAs coupled with Summit (48%), Corail (35%), or S-ROM (17%) hip stems at a mean follow-up of 6...
September 6, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28916885/geometric-analysis-and-clinical-outcome-of-two-cemented-stems-for-primary-total-hip-replacement-with-and-without-modular-necks
#11
Marcel Haversath, Christine Wendelborn, Marcus Jäger, Boris Schmidt, Wojciech Kowalczyk, Stefan Landgraeber
INTRODUCTION: Restoration of the physiological biomechanical principles of the hip is crucial in total hip replacement. The aim of this study was to compare an arthroplasty system with different offset options (a: Exeter(®)) with a dual-modular stem (b: Profemur Xm(®)). MATERIALS AND METHODS: A local and an inertial coordinate system were used to assist the description of the components' assembly in the prosthesis. A resection line of the femoral head in standard position was added to the arthroplasties and geometric parameters were measured...
September 15, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28878517/comparison-of-metal-ion-levels-in-patients-with-hip-resurfacing-versus-total-hip-arthroplasty
#12
Craig W Forsthoefel, Nicholas M Brown, Mark L Barba
Mechanical wear at the articular surface and corrosive processes at modular junctions, such as the trunnion, are responsible for metal ions production. We retrospectively reviewed 64 patients who underwent THA with a metal on metal bearing surface and 34 patients with hip Resurfacing. Metal ion measurements, six-week post-op radiographs, and functional scores were included in the analysis. Cobalt ion levels were significantly elevated in THA patients, 2.95 μg/L as compared to resurfacing patients, (2.95 versus 1...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28865425/silver-coated-modular-megaendoprostheses-in-salvage-revision-arthroplasty-after-periimplant-infection-with-extensive-bone-loss-a-pilot-study-of-34-patients
#13
Dirk Zajonz, Undine Birke, Mohamed Ghanem, Torsten Prietzel, Christoph Josten, Andreas Roth, Johannes K M Fakler
BACKGROUND: Hip and knee replacements in patients with bone defects after infection correlates with high rates of reinfection. In this vulnerable patient population, the prevention of reinfection is to be considered superordinate to the functionality and defect bridging. The use of silver coating of aseptic implants as an infection prophylaxis is already proven; however, the significance of these coatings in septic reimplantation of large implants is still not sufficiently investigated...
September 2, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28844633/corrigendum-to-a-comparison-of-modular-tapered-versus-modular-cylindrical-stems-for-complex-femoral-revisions-journal-of-arthroplasty-28-suppl-%C3%A2-1-2013-71-73
#14
(no author information available yet)
No abstract text is available yet for this article.
August 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28844629/total-hip-arthroplasty-after-in-situ-fixation-of-minimally-displaced-femoral-neck-fractures-in-elderly-patients
#15
Nicholas M Hernandez, Brian P Chalmers, Kevin I Perry, Daniel J Berry, Brandon J Yuan, Matthew P Abdel
BACKGROUND: In situ screw fixation remains the most common treatment for minimally displaced femoral neck fractures (FNFs). Total hip arthroplasty (THA) can be used as a salvage procedure, but the results of conversion THA in this population have not been evaluated. The goals of this study were to evaluate (1) unique complications associated with conversion THA, (2) implant survivorship free of revision and reoperation, (3) radiographic results, and (4) clinical outcomes in patients undergoing conversion THA after in situ fixation of nondisplaced FNFs...
July 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28768778/which-factors-influence-the-rate-of-failure-following-metal-on-metal-hip-arthroplasty-revision-surgery-performed-for-adverse-reactions-to-metal-debris-an-analysis-from-the-national-joint-registry-for-england-and-wales
#16
MULTICENTER STUDY
G S Matharu, A Judge, H G Pandit, D W Murray
AIMS: To determine the outcomes following revision surgery of metal-on-metal hip arthroplasties (MoMHA) performed for adverse reactions to metal debris (ARMD), and to identify factors predictive of re-revision. PATIENTS AND METHODS: We performed a retrospective observational study using National Joint Registry (NJR) data on 2535 MoMHAs undergoing revision surgery for ARMD between 2008 and 2014. The outcomes studied following revision were intra-operative complications, mortality and re-revision surgery...
August 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28710154/outcomes-following-revision-surgery-performed-for-adverse-reactions-to-metal-debris-in-non-metal-on-metal-hip-arthroplasty-patients-analysis-of-185-revisions-from-the-national-joint-registry-for-england-and-wales
#17
G S Matharu, A Judge, D W Murray, H G Pandit
OBJECTIVES: Few studies have assessed outcomes following non-metal-on-metal hip arthroplasty (non-MoMHA) revision surgery performed for adverse reactions to metal debris (ARMD). We assessed outcomes following non-MoMHA revision surgery performed for ARMD, and identified predictors of re-revision. METHODS: We performed a retrospective observational study using data from the National Joint Registry for England and Wales. All non-MoMHAs undergoing revision surgery for ARMD between 2008 and 2014 were included (185 hips in 185 patients)...
July 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28702784/cementless-modular-distally-fixed-stem-in-hip-revision-arthroplasty-a-single-center-study-of-132-consecutive-hips
#18
Ali Hashem, Ammar Al-Azzawi, Hasan Riyadh, Sebastian Mukka, Arkan Sayed-Noor
PURPOSE: The use of cementless, modular, distally fixed stem in hip revision arthroplasty has increased during the last decades. We aimed to analyze the early and late postoperative complications, re-operation rate, and survival rate of the MP stem operated at our county hospital with relatively limited caseload. METHODS: In this retrospective study, we included 132 hips operated with MP stem between January 2007-2014. An independent observer reviewed patients' medical records in July 2015 (18-102 months postoperatively, median 52...
July 12, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28695179/inflammatory-pseudotumor-after-ceramic-on-ceramic-total-hip-arthroplasty
#19
Joshua Campbell, Sean Rajaee, Earl Brien, Guy D Paiement
We present a unique case of a symptomatic adverse local tissue reaction in a patient with a ceramic-on-ceramic total hip bearing surface. To our knowledge, this pathological finding has not yet been described in a ceramic-on-ceramic articulation without a cobalt-chromium alloy trunnion or modular neck component as a source of metal wear. We conclude that despite its mechanical mostly benign wear characteristics, ceramic wear debris is not entirely inert and may lead to the development of adverse local tissue reaction...
June 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28674737/systematic-review-of-the-outcome-of-total-hip-arthroplasty-in-patients-with-sequelae-of-legg-calv%C3%A3-perthes-disease
#20
Sammy A Hanna, Khaled M Sarraf, Manoj Ramachandran, Pramod Achan
BACKGROUND: Total hip arthroplasty (THA) in patients with sequelae of Legg-Calvé-Perthes disease (LCP) is technically demanding because of the disease related deformities occuring in the proximal femur and/or the multiplanar deformities secondary to corrective osteotomies in childhood. Little is known about the long-term outcome of the procedure in this challenging group of patients. METHODS: We carried out a systematic review of the literature to determine the functional outcome, complications and revision rate of THA in patients with sequelae of LCP disease...
August 2017: Archives of Orthopaedic and Trauma Surgery
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