scholarly journals Clinical Results and Serum Metal Ion Concentrations following Ceramic-on-Metal Total Hip Arthroplasty at a Mean Follow-Up of 60 Months

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
W. Maurer-Ertl ◽  
D. Pranckh-Matzke ◽  
J. Friesenbichler ◽  
G. Bratschitsch ◽  
L. A. Holzer ◽  
...  

Background. Increased metal ion levels following total hip arthroplasty (THA) with metal-on-metal bearings are a highly debated topic. Local soft tissue reactions with chronic pain and systemic side effects such as neuropathy are described. The aim of the current study was to determine the serum metal ion concentrations of Cobalt (Co) and Chrome (Cr) after THA with a ceramic-on-metal (CoM) bearing. Patients and Methods. Between 2008 and 2010, 20 patients underwent THA using a CoM bearing. Clinical function was evaluated by standardized scores systems (Harris Hip Score and WOMAC Score) and radiological examination included X-rays. Patient’s blood samples were obtained for metal ion analysis and correlation analysis was done between these results and implant position. Results. Overall, 13 patients with 14 CoM devices were available for the current series. The mean age at time of surgery was 61 years (range, 41 to 85). The postoperative follow-up ranged from 49 to 68 months (mean, 58). Metal ion determination showed mean concentrations of 3,1 µg/L (range, 0,3–15,2 µg/L) for Co and 1,6 µg/L (range, 0,1–5,5 µg/L) for Cr, respectively. A correlation between cup anteversion and Co and Cr concentrations was shown. Conclusion. The current series showed increments for Co and Cr following CoM THA. However, these levels are lower compared to metal ion concentrations in patients with metal-on-metal bearings and the international accepted threshold for revision of MoM devices. We recommend routine follow-up including at least one obligatory evaluation of serum metal ion concentrations and an MRI once to exclude local soft tissue reactions.

2019 ◽  
pp. 112070001987738 ◽  
Author(s):  
Duncan W Cushnie ◽  
Brent A Lanting ◽  
Richard McCalden ◽  
Douglas DR Naudie ◽  
James L Howard

Introduction: Birmingham Hip Resurfacing (BHR) implants may be combined with a conventional femoral stem to create a modular metal-on-metal total hip arthroplasty (BHR MoM THA). There is little outcome data regarding this construct. This study examines midterm outcomes of BHR MoM THA compared to oxidised zirconium total hip arthroplasty (THA). Methods: A retrospective institutional review identified all patients receiving BHR MoM THA between April 2005 and February 2011 and a matched control cohort of zirconium THA patients. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Harris Hip Score (HHS), and SF-12 Health status scores were obtained. Revisions and complications were collected from clinical records. Radiographs were assessed for evidence of component malposition, loosening, osteolysis, or heterotopic ossification. Results: 63 modular BHR MoM THA were identified in 61 patients (36 with BHR cups, 27 with R3 cups) and 63 zirconium THA in 58 matched controls. Mean follow-up was 58 months. 14 BHR MoM THA hips (22.2%) were revised (4 infections, 1 dislocation, 9 soft tissue reactions) compared to 3 (4.8%) zirconium THA (all infections). At latest follow-up, 18.4% of surviving BHR MoM THA hips were painful compared to 0.5% of zirconium THA controls ( p < 0.001). WOMAC, HHS, and SF-12 did not differ significantly between surviving members of the 2 groups. Discussion: BHR MoM THA demonstrated a high revision rate, largely for adverse local soft tissue reaction and pain. Among those not revised, many reported some residual pain despite similar quality of life measures to those who received zirconium THA.


2017 ◽  
Vol 27 (4) ◽  
pp. 527-532 ◽  
Author(s):  
Tadahiko Ohtsuru ◽  
Yuji Morita ◽  
Yasuaki Murata ◽  
Shuji Shimamoto ◽  
Yutaro Munakata ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Chih-Chien Hu ◽  
Tsan-Wen Huang ◽  
Shih-Jie Lin ◽  
Po-Chun Lin ◽  
Feng-Chih Kuo ◽  
...  

Large-diameter head (LDH) metal-on-metal (MoM) total hip arthroplasty (THA) has lost popularity because of metal allergy or ALTRs (adverse local tissue reactions) in the past decade. Whether the surgical approach may influence the survival of LDH-MoM-THA has not been reported. From 2006 to 2009, we performed 96 LDH-MoM-THAs on 80 patients using an in situ head-neck assembly technique through a modified Watson-Jones approach. With a mean follow-up of 8.4 years (range, 6.3–10.1 years), the implant survival rate was 100%. All patients were satisfied with the results and the Harris Hip Score improved from 52 points to 98 points. No ALTRs were found, but 17.7% of the 96 hips (17 adverse events) experienced adverse events related to the cup, including 5 cases of outlier cup malposition, 11 cases of inadequate cup seating, and 1 acetabular fracture. The tissue tension that was improved by a muscle-sparing approach might lessen the chance of microseparation or edge-loading that is taken as the major risk for early implant failure. Further investigation of whether these LDH-MoM-THAs would fail or not would require a longer follow-up or even retrieval analysis in the future.


2015 ◽  
Vol 45 (1) ◽  
pp. 115-125 ◽  
Author(s):  
Mette Holm Hjorth ◽  
Maiken Stilling ◽  
Kjeld Soballe ◽  
Lars Hans Bolvig ◽  
Jacob Pontoppidan Thyssen ◽  
...  

2020 ◽  
Author(s):  
Weiguang Yu ◽  
Mao Shuai ◽  
Jinluan Lin ◽  
Baomin Chen ◽  
Mingdong Zhao ◽  
...  

Abstract Background The purpose of this retrospective study was to assess clinical outcomes following failed metal-on-metal hip resurfacing arthroplasty (MoM-HRA) revised using ceramic-on-ceramic total hip arthroplasty (CoC-THA) via the direct anterior approach (DAA).Methods Data involving 112 patients (112 hips) with failed primary MoM-HRA that was revised using CoC-THA via the DAA during 2006 - 2018 were retrospectively analysed. The mean age was 54.6 years (45–63 years). Frequent surgical indications for conversion were aseptic loosening and femoral neck fracture. The primary endpoint was the Postel-Merle d’Aubigne functional score (PMA). Secondary endpoints were the major orthopaedic complication rate and serum metal ion levels (chromium and cobalt).Results The mean follow-up time was 10 years (range, 4 - 13 years). The mean PMA improved from 9 (4-14) to 16 (13-18) (p = 0.001). Six patients had undergone a re-revision intervention. Fourteen incidents of aseptic loosening and four periprosthetic fractures were observed. A consistent decline in mean serum metal ion levels was detected [chromium decreased from 36.6 μg/L (12.5-76.5 μg/L) prior to conversion to 2.6 μg/L (0.1-13.5 μg/L) at final follow-up (p = 0.001), cobalt decreased from 37.5 μg/L (6.7-93.2 μg/L) to 2.2 μg/L (1.2-18.4 μg/L) (p =0.003)].Conclusion Failed primary MoM-HRA converted to CoC-THA using the DAA yielded acceptable clinical outcomes.


2011 ◽  
Vol 26 (8) ◽  
pp. 1494-1500 ◽  
Author(s):  
Christopher E. Pelt ◽  
Adam G. Bergeson ◽  
Lucas A. Anderson ◽  
Gregory J. Stoddard ◽  
Christopher L. Peters

2012 ◽  
Vol 2 (4) ◽  
pp. e80 ◽  
Author(s):  
Anay R. Patel ◽  
Ronak M. Patel ◽  
Danielle Thomas ◽  
Thomas W. Bauer ◽  
S. David Stulberg

2012 ◽  
Vol 36 (9) ◽  
pp. 1807-1812 ◽  
Author(s):  
Mitchell Bernstein ◽  
Nicholas M. Desy ◽  
Alain Petit ◽  
David J. Zukor ◽  
Olga L. Huk ◽  
...  

2017 ◽  
Vol 88 (5) ◽  
pp. 490-495 ◽  
Author(s):  
Henrik Dahlstrand ◽  
André Stark ◽  
Marius C Wick ◽  
Lucas Anissian ◽  
Nils P Hailer ◽  
...  

2020 ◽  
Vol 54 (2) ◽  
pp. 164-167 ◽  
Author(s):  
Werner Maurer-Ertl ◽  
Andreas Fellner ◽  
Patrick Reinbacher ◽  
Michael Maier ◽  
Andreas Leithner ◽  
...  

Abstract Background The aim of this series was to investigate the efficiency of an intraoperative cell salvage system (ICS) removing metal ions during revision of metal-on-metal (MoM) devices to proof the possibility of re-transfusion of the collected blood. Materials and methods Between 2014 and 2018, five consecutive patients underwent revision surgery of their MoM total hip arthroplasty due to wear of the polyethylene-metal sandwich inlay or local massive metallosis with aseptic loosing of the cup. Aspiration of joint fluid of all hip prostheses was done and blood was taken to measure the metal ion concentrations, preoperatively. Perioperatively, blood was collected using an ICS before and after filtration and analyzed for Co and Cr concentrations. At that time, there was no re-transfusion of the collected and filtrated blood due to unknown metal ion concentrations. Results The mean preoperative serum Co and Cr concentrations in the blood were 31.28 μg/L (range 0.22–77.47) and 17.33 μg/L (range 0.59–51.31), whereas the mean local concentrations in the aspiration fluid were 728-fold and 822-fold higher. The Co and Cr concentrations measured in the collected blood before filtration were 70.61 μg/L (range 9.40–173.00) and 337.21 μg/L (range 8.76–1383.0) and decreased markedly to average concentrations of 15.49 μg/L and 41.88 μg/L, respectively. These differences were statistically not significant (Co: p = 0.117, Cr: p = 0.175), although the mean reduction rates were 78% and 88% for Co and Cr, respectively. Conclusion The current series showed that in case of revision of MoM hip devices, metal ions are still contained in the collected blood following filtration using a modern high-level ICS. Therefore, we would only recommend blood re-transfusion in case of low preoperative Co and Cr concentrations and sufficient renal function to warrant patients’ safety.


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