scholarly journals Trilogy-Constrained Acetabular Component for Recurrent Dislocation

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Annette Vest Andersen ◽  
Anne Grete Kjersgaard ◽  
Søren Solgaard
Keyword(s):  
Femoral Component ◽  
Revision Surgery ◽  
Hip Replacement ◽  
Recurrent Dislocation ◽  
Harris Hip Score ◽  
Acetabular Liner ◽  
Radiologic Evaluation ◽  
Acetabular Shell ◽  
Constrained Liner ◽  
Constrained Acetabular Component

32 patients received a Trilogy- or Trilogy-Longevity-constrained acetabular liner for recurrent dislocations after total hip replacement. The constrained liner was inserted into a well-fixed Trilogy acetabular shell with snap fit. At 1.8-year followup (range 3–63 months), 4 patients had suffered further dislocation(s) (12%), and one patient had revision surgery for a loosened acetabular shell. Radiologic evaluation detected no definitively loose components, but one patient with progressing radiolucent lines around the femoral component and one patient with an acetabular cyst were found, as well as a patient with a loose locking ring (but otherwise no failure). The nineteen patients who were available for the present followup had a mean Harris Hip Score of 81. The constrained liner is an effective method of dealing with recurrent dislocations in well-fixed components.

A MODERN CONSTRAINED ACETABULAR COMPONENT FOR THE MANAGEMENT OF HIP INSTABILITY

2016 ◽  
Vol 19 (01) ◽  
pp. 1650002 ◽  
Author(s):  
Dror Maor ◽  
Jie Xu ◽  
Kulvir S Mudhar ◽  
Piers J Yates
Keyword(s):  
High Risk ◽  
Aseptic Loosening ◽  
Hip Replacement ◽  
Recurrent Dislocation ◽  
Deep Infection ◽  
Radiological Findings ◽  
Hip Instability ◽  
Constrained Liner ◽  
Constrained Acetabular Component

The incidence of dislocation after primary THR has been quoted up to 2.25%, and between 2% and 20% for revision THR. We report clinical and radiological findings in 76 patients treated with a constrained liner for those considered at high-risk for dislocation, intraoperative instability or recurrent dislocations. Mean follow up was 12 months. Post operatively there were two cases of recurrent dislocation, one aseptic loosening and nine cases of deep infection. These results support that these liners have been used to treat, or in some cases prevent, instability after total hip replacement.

scholarly journals Short uncemented femoral component for hip revision: prognosis and risk factors associated with failure

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Zeming Liu ◽  
Bo Liu ◽  
Bingshi Zhang ◽  
Wenhui Ma ◽  
Tao Wu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Survival Rate ◽  
Femoral Component ◽  
Revision Surgery ◽  
Femoral Fracture ◽  
Femoral Stem ◽  
Harris Hip Score ◽  
Categorical Variables ◽  
Periprosthetic Femoral Fracture ◽  
Significant Difference

Abstract Background The application of short femoral stems is partially restricted in revision surgery. This study will demonstrate the therapeutic effect and unsuitable situation for short stem revision. Methods Demographic characteristics of all patients were recorded in detail (Table 1). Anteroposterior view radiographic examinations of proximal femur are necessary before and after the operation for patients. The primary outcome of interest was the survival rate of the femoral stem at the final follow-up. Risk factors for failure were also investigated. The secondary outcomes of interest included the Harris hip score, excellent to good rate and incidence of complications. The Mann–Whitney U test was performed for comparisons between continuous variables. The chi-square test was performed for comparisons between categorical variables. Cox regression analysis was used to assess the association between potential risk factors and the failure of revision surgery. Results A total of 381 patients with short stems were retrospectively reviewed. There were 188 males and 193 females. The average age and body mass index before revision surgery were 58.85 ± 13.46 years and 23.72 ± 3.40 kg/m2, respectively. The mid-term survival rate of the short femoral component was 94.23%. The prognosis and complications of patients between the two groups were compared. There was no significant difference between the two groups in the Harris score, complication incidence or survival rate of the femoral component. The strongest risk factor in this study was intraoperative periprosthetic femoral fracture during revision surgery (HR = 5.477, 95% CI = 2.156–13.913). Conclusion Three risk factors for failure were identified: ageing, osteoporosis and intraoperative periprosthetic femoral fracture during revision surgery. Therefore, a short femoral stem should be implanted in patients with these risk factors with additional caution.

Optimization of a hip replacement technology

2014 ◽  
Vol 18 (4 (72)) ◽  
Author(s):  
Y. M. Vasylchyshyn
Keyword(s):  
Femoral Component ◽  
Hip Replacement ◽  
Hip Prosthesis ◽  
Main Group ◽  
Harris Hip Score ◽  
Clinical Group ◽  
Control Groups ◽  
Significant Difference ◽  
Indirect Confirmation

A new cemented hip prosthesis was designed and clinically probed which takes into consideration the neckshaft angle variability. Femoral component with inclination angle of 125° was implanted in 22,64 % of patients, with angle 135° in 62,26 % cases, and 145° in 15,09 %. Follow-up results in 160 cases divided into three clinical groups showed mean Harris hip score in main group 84,94±2,28, whereas in two control groups 85,49±1,55 and 82,39±2,56. No statistically significant difference was found; however, mean age in the main clinical group was higher than in the control groups by 9,99 years and by 10,65 years, respectively (p<0,05). Therefore, regardless the fact that mean Harris hip score showed no significant difference in the three clinical groups while mean age in the main group was 10 years higher than in the control groups, conclusion about superiority of the designed prosthesis received indirect confirmation.

scholarly journals Revision of failed metal-on-metal total hip arthroplasty using cemented arthroplasty: a mean 10-year follow-up of 157 consecutive patients

2021 ◽  
Vol 49 (1) ◽  
pp. 030006052096947
Author(s):  
Jinluan Lin ◽  
Chunlong Huang ◽  
Weiguang Yu ◽  
Guowei Han ◽  
Xiangzhen Liu ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Revision Surgery ◽  
Recurrent Dislocation ◽  
Harris Hip Score ◽  
Prosthesis Loosening ◽  
Total Hip ◽  
Metal On Metal ◽  
The Mean

Objective This study was performed to assess the outcomes of Asian patients who underwent conversion from metal-on-metal total hip arthroplasty (MoM-THA) to cemented THA (CTHA). Methods One hundred and fifty-seven consecutive patients (157 hips) who underwent CTHA following primary MoM-THA from January 2005 to February 2015 were retrospectively analysed. The primary endpoints were the clinical outcomes. Follow-ups occurred at 3 months, 6 months, 1 year, 2 years, and then every 2 years following revision of MoM-THA. Results The mean follow-up after conversion was 10 years (range, 5–14 years). Statistically significant improvements in the mean Harris hip score were observed between the preoperative and final follow-up evaluations (62.71 ± 13.85 vs. 84.03 ± 16.21, respectively). The major orthopaedic complication rate was 16.5% (26/157). Six (3.8%) patients underwent revision at a mean of 3.5 ± 1.3 years after conversion, predominantly because of prosthesis loosening or recurrent dislocation. Nine (5.7%) patients developed prosthesis loosening at a mean of 2.6 ± 1.1 years following conversion, two of whom requested revision surgery. Eleven (7.0%) patients developed prosthesis dislocation, four of whom requested revision surgery. Conclusion CTHA may yield favourable functional outcomes and a reduced rate of major orthopaedic complications.

Effect of proximal femoral bone support on the fixation of a press-fit noncemented total hip replacement femoral component

2012 ◽  
Vol 11 (1) ◽  
pp. 26-34
Author(s):  
Sophia N. Sangiorgio ◽  
Edward Ebramzadeh ◽  
Sean L. Borkowski ◽  
Daniel A. Oakes ◽  
Jeremy J. Reid ◽  
...  
Keyword(s):  
Femoral Component ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Femoral Bone ◽  
Total Hip ◽  
Press Fit

scholarly journals Uncemented versus cemented arthroplasty after metal-on-metal total hip replacement in patients with femoral neck fractures: a retrospective study

2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110122
Author(s):  
Wenlu Liu ◽  
Huanyi Lin ◽  
Xianshang Zeng ◽  
Meiji Chen ◽  
Weiwei Tang ◽  
...  
Keyword(s):  
Femoral Neck ◽  
Clinical Outcomes ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Femoral Neck Fractures ◽  
Harris Hip Score ◽  
Complication Rates ◽  
Total Hip ◽  
Metal On Metal

Objective To compare the clinical outcomes of primary metal-on-metal total hip replacement (MoM-TR) converted to uncemented total hip replacement (UTR) or cemented total hip replacement (CTR) in patients with femoral neck fractures (AO/OTA: 31B/C). Methods Patient data of 234 UTR or CTR revisions after primary MoM-TR failure from March 2007 to January 2018 were retrospectively identified. Clinical outcomes, including the Harris hip score (HHS) and key orthopaedic complications, were collected at 3, 6, and 12 months following conversion and every 12 months thereafter. Results The mean follow-up was 84.12 (67–100) months for UTR and 84.23 (66–101) months for CTR. At the last follow-up, the HHS was better in the CTR- than UTR-treated patients. Noteworthy dissimilarities were correspondingly detected in the key orthopaedic complication rates (16.1% for CTR vs. 47.4% for UTR). Statistically significant differences in specific orthopaedic complications were also detected in the re-revision rate (10.3% for UTR vs. 2.5% for CTR), prosthesis loosening rate (16.3% for UTR vs. 5.9% for CTR), and periprosthetic fracture rate (12.0% for UTR vs. 4.2% for CTR). Conclusion In the setting of revision of failed primary MoM-TR, CTR may demonstrate advantages over UTR in improving functional outcomes and reducing key orthopaedic complications.

scholarly journals Clinical and radiological outcomes of acetabular revision surgery with trabecular titanium cups in Paprosky type II and III bone defects

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Loris Perticarini ◽  
Stefano Marco Paolo Rossi ◽  
Marta Medetti ◽  
Francesco Benazzo
Keyword(s):  
Revision Surgery ◽  
Case Series ◽  
Bone Defects ◽  
Harris Hip Score ◽  
Type Ii ◽  
Level Of Evidence ◽  
Kaplan Meier ◽  
Prospective Case Series ◽  
Acetabular Components

Abstract Background This prospective study aims to evaluate the mid-term clinical outcomes and radiographic stability of two different types of cementless trabecular titanium acetabular components in total hip revision surgery. Methods Between December 2008 and February 2017, 104 cup revisions were performed using trabecular titanium revision cups. Mean age of patients was 70 (range 29–90; SD 11) years. The majority of revisions were performed for aseptic loosening (86 cases, 82.69%), but in all the other diagnoses (18 cases), a significant bone loss (Paprosky type II or III) was registered preoperatively. Bone defects were classified according to Paprosky acetabular classification. We observed 53 type II defects and 42 type III defects. Cups were chosen according to the type of defect. Results Average follow-up was 91 (range 24–146) months. Mean Harris Hip Score (HHS) improved from 43.7 (range 25–70; SD 9) preoperatively to 84.4 (range 46–99; SD 7.56) at last follow-up. One (1.05%) cup showed radiographic radiolucent lines inferior to 2 mm and was clinically asymptomatic. One (1.05%) cup was loose and showed periacetabular allograft reabsorption. Kaplan–Meier survivorship was assessed to be 88.54% (95% CI 80.18–93.52%) at 71 months, with failure of the cup for any reason as the endpoint. Conclusion Trabecular titanium revision cups showed good clinical and radiographic results at mid-term follow-up in Paprosky type II and III bone defects. Level of evidence Level IV prospective case series

scholarly journals The association between cement type and the subsequent risk of revision surgery in primary total hip replacement

2017 ◽  
Vol 89 (1) ◽  
pp. 40-46 ◽  
Author(s):  
Lea Trela-Larsen ◽  
Adrian Sayers ◽  
Ashley William Blom ◽  
Jason Crispin John Webb ◽  
Michael Richard Whitehouse
Keyword(s):  
Total Hip Replacement ◽  
Revision Surgery ◽  
Hip Replacement ◽  
Cement Type ◽  
Total Hip ◽  
Subsequent Risk
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