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Modular hip arthroplasty

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https://www.readbyqxmd.com/read/29322320/is-there-a-relationship-between-the-load-distribution-on-the-tibial-plateau-and-hip-knee-ankle-angle-after-tka
#1
Takao Kaneko, Norihiko Kono, Yuta Mochizuki, Hiroyasu Ikegami, Yoshiro Musha
INTRODUCTION: This study asked whether differences in coronal alignment after total knee arthroplasty (TKA) affect the load distribution on the tibial plateau. The aim of this study was to investigate the correlation between coronal alignment and the load distribution on the tibial plateau after TKA, using three-dimensional multi-detector-row-computed tomography (3D-MDCT). MATERIALS AND METHODS: In this study, we performed 84 cementless TKA with porous tantalum modular tibial component (PTMT) and divided into three groups based on post-operative hip-knee-ankle (HKA) angle: varus alignment group (n = 22), (176° ≧) neutral alignment group (n = 45), (180° ± 3°), and valgus alignment group (n = 17) (184° ≦)...
January 10, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29321813/novel-concept-of-a-modular-hip-implant-could-contribute-to-less-implant-failure-in-tha-a-hypothesis
#2
Ronny Grunert, Stefan Schleifenbaum, Robert Möbius, Michael Kopper, Christian Rotsch, Welf-Guntram Drossel, Niels Hammer, Torsten Prietzel
Background: The modularity in total hip arthroplasty (THA) allows orthopaedic surgeons for an exact reconstruction of hip biomechanical parameters especially in revision and tumor arthroplasty. Modular structured femoral stems using taper junctions showed increased implant breakage in the recent past. Presentation of the hypothesis: We hypothesize that a novel modular stem-neck-interface leads to less implant breakage compared to conventional femoral stems. Testing of the hypothesis: For this purpose, a novel modular femoral stem for THA was to design and manufacture...
2018: Patient Safety in Surgery
https://www.readbyqxmd.com/read/29291158/antibiotic-prophylaxis-and-dair-treatment-in-primary-total-hip-and-knee-arthroplasty-a-national-survey-in-the-netherlands
#3
Ewout S Veltman, Dirk Jan F Moojen, Rob Ghh Nelissen, Rudolf W Poolman
BACKGROUND: To prevent postoperative infection the use of systemic antibiotic prophylaxis is common ground. Type of antibiotic used and duration of prophylaxis are subject to debate. In case of suspected early periprosthetic infection a debridement, antibiotics and implant retention (DAIR) procedure is treatment of first choice. This study evaluated the antibiotic prophylaxis and DAIR treatment protocols nationwide as well as reporting of these DAIR procedures to the national joint registry...
2018: Journal of Bone and Joint Infection
https://www.readbyqxmd.com/read/29275431/influence-of-femoral-bowing-on-range-of-motion-after-total-hip-arthroplasty
#4
Keisuke Akiyama, Takaaki Shibuya
PURPOSE: The influence of physiologic femoral bowing on range of motion (ROM) after total hip arthroplasty (THA) remains unknown. The purpose of this study was to investigate the morphology of the femur in patients who underwent THA, and to analyze the influence of femoral bowing on ROM due to implant impingement after THA. METHODS: The ROM was calculated from 100 hips in 90 patients who underwent THA using computed tomography data with a 3D dynamic analysis software...
December 23, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29260384/predictive-factors-for-metal-ion-levels-in-metal-on-metal-total-hip-arthroplasty
#5
Maximilian F Kasparek, Lisa Renner, Martin Faschingbauer, Wenzel Waldstein, Michael Weber, Friedrich Boettner
INTRODUCTION: Although metal-on-metal (MoM) total hip arthroplasty (THA) and hip resurfacings (HR) have similar bearing surfaces and comparable wear rates, metal ion levels and risk of failure are higher for MoM-THA. The mechanism behind the increased metal ion levels in large head MoM-THA is not completely understood. The current study aims to identify predictive factors for increased metal ion levels in unilateral and bilateral large head MoM-THA. MATERIALS AND METHODS: 99 Birmingham modular MoM-THA in 87 patients with metal ion levels at least 36 months after index procedure were analyzed...
December 19, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29206791/irrigation-and-debridement-with-component-retention-for-acute-infection-after-hip-arthroplasty-improved-results-with-contemporary-management
#6
Andrew J Bryan, Matthew P Abdel, Thomas L Sanders, Steven F Fitzgerald, Arlen D Hanssen, Daniel J Berry
BACKGROUND: There are conflicting data on the results of irrigation and debridement with component retention in patients with acute periprosthetic hip infections. The goals of this study were to examine contemporary results of irrigation and debridement with component retention for acute infection after primary hip arthroplasty and to identify host, organism, antibiotic, or implant factors that predict success or failure. METHODS: Ninety hips (57 total hip arthroplasties and 33 hemiarthroplasties) were diagnosed with acute periprosthetic hip infection (using strict criteria) and were treated with irrigation and debridement and component retention between 2000 and 2012...
December 6, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29204483/bead-debonding-from-a-modern-cementless-total-hip-femoral-component-with-concomitant-taper-corrosion
#7
Adam I Edelstein, Duy L Phan, Scott M Sporer
We report a case of bead shedding from a cylindrical extensively porous-coated cementless femoral component with concomitant taper corrosion at the modular head-neck junction of a metal-on-polyethylene total hip prosthesis. The patient presented with chronic thigh pain 4 years after primary total hip arthroplasty, and radiographs revealed significant osteolysis and metallic debris around the femoral stem. Intraoperatively, the patient had a grossly loose femoral component with debonding of sintered beads from the femoral stem, as well as evidence of taper corrosion...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29204482/corrosion-and-adverse-local-tissue-reaction-after-total-hip-arthroplasty-with-a-modular-titanium-alloy-femoral-neck
#8
Colin D Canham, Pavel I Muradov, Jordan B Simpson, Stephen J Incavo
This report describes a case of mechanically assisted crevice corrosion and secondary adverse local tissue reaction in a patient following a total hip arthroplasty, utilizing a modular neck (bi-modular) femoral component. Radiographic evaluation demonstrated a well-positioned, stable, cementless arthroplasty. Upon further evaluation, the patient had elevated serum cobalt and chromium levels, and magnetic resonance imaging demonstrated a periprosthetic pseudotumor. Corrosion of both the neck-stem and head-neck junctions was suspected...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29201293/calcar-femorale-in-patients-with-osteoarthritis-of-the-hip-secondary-to-developmental-dysplasia
#9
Tomonori Tetsunaga, Kazuo Fujiwara, Hirosuke Endo, Tomoko Tetsunaga, Naofumi Shiota, Toru Sato, Toshifumi Ozaki
Background: We investigated whether the calcar femorale, a cortical septum in the region of the lesser trochanter of the femur, correlates with results of femoral stem implantation in patients with osteoarthritis of the hip secondary to developmental dysplasia using computed tomography. Methods: This retrospective study included 277 hips (41 males and 236 females; age, 37 to 92 years) of patients who had presented to Okayama Medical Center with hip pain. Of these, a total of 219 hips (31 males and 188 females) had previously undergone total hip arthroplasty...
December 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29180271/reconstructive-techniques-for-revision-and-limb-salvage-surgery-in-persons-with-haemophilia
#10
C Carulli, M Zago, A R Rizzo, M Innocenti
Haemophilia is an inherited haemorrhagic disease characterized by the lack of coagulative factors associated nowadays mostly to musculoskeletal complications, particularly severe secondary arthritis in specific joints. Recurrent traumatic or spontaneous joint bleeding, induce severe arthropathy at a young age that can be treated only by joint replacement. Total knee or hip arthroplasty in young subjects may fail earlier due to wear or infections and in the haemophilic population, this means bone loss, pseudo tumours and the need of revision or even limb salvage surgery...
October 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29178854/subtrochanteric-shortening-osteotomy-during-cementless-total-hip-arthroplasty-in-young-patients-with-severe-developmental-dysplasia-of-the-hip
#11
Duan Wang, De-Hua Li, Qi Li, Hao-Yang Wang, Ze-Yu Luo, Yang Yang, Fu-Xing Pei, Zong-Ke Zhou
BACKGROUND: This retrospective study was designed to determine complications, functional and radiographic results of transverse subtrochanteric osteotomy during cementless, modular total hip arthroplasty (THA) in a series of active patients younger than 45 years with Crowe Type-III or IV developmental dysplasia of the hip (DDH). METHODS: We followed 49 patients (56 hips) with DDH who were treated with cementless THA, where the acetabular cup was positioned in the anatomic hip center and where a simultaneous transverse femoral osteotomy was performed...
November 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29174405/mixing-of-head-stem-components-in-total-hip-arthroplasty
#12
Ulrike Mueller, Benjamin Panzram, Steffen Braun, Robert Sonntag, J Philippe Kretzer
BACKGROUND: Implant manufacturers proclaim that the tapers of modular total hip arthroplasty are not standardized and can vary from manufacturer to manufacturer. That is why the combination of various components from different manufacturers ("Mix and Match") is not permitted. In this study, different taper combinations were investigated experimentally to assess the effect of "Mix and Match" regarding the taper connection strength. METHODS: Torque-off tests using hip stems and metal femoral heads from 6 different implant manufacturers were performed...
November 1, 2017: Journal of Arthroplasty
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
REVIEW
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
#19
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
#20
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
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