scholarly journals Clinical evaluation of a novel press-fit acetabular cup using “Ein-Bild-Roentgen-Analysis” (EBRA): A positive short-term prognosis

2020 ◽  
Vol 22 ◽  
pp. 33-37
Author(s):  
B.A. Ishaque ◽  
J. Wieczorek ◽  
C.A. Fonseca Ulloa ◽  
J.B. Seeger ◽  
G.A. Ahmed ◽  
...  
Keyword(s):  
Clinical Evaluation ◽  
Acetabular Cup ◽  
Short Term ◽  
Press Fit

scholarly journals Dual-Mobility Progressive Press-Fit Hemispherical Acetabular Cup in Primary Hip Arthroplasty: Safety and Efficacy. The SYMCOR-1 study [NCT04209374]

2021 ◽  
Vol 4 (3) ◽  
Keyword(s):  
Cobalt Metal ◽  
Sampling Frame ◽  
Acetabular Cup ◽  
Short Term ◽  
Clinical Safety ◽  
Dual Mobility ◽  
Safety And Efficacy ◽  
Press Fit ◽  
Lost To Follow Up

Purpose: To Estimate the short-term clinical safety and efficacy of hemispherical with flattened pole chromium-cobalt metal back dual-mobility acetabular cup with porous outer coating (HFPC-DM-HA), in primary THA. Methods: Single-center retrospective observational cohort study of consecutive patients undergoing THA with a HFPC-DMHA cup 2 years prior to study start. Prospective 2-year follow-up with letter and phone questionnaires. Results: Sampling frame: 361 patients including 59 patients (16.3%) in the cohort. 6 patients (10%) lost to follow-up. Median age 77.5 years (67, 92), 32% female, median BMI 25.2 kg.m-2 (18.4 to 56.8). Primary osteoarthritis in 80%. Median follow-up 3.0 years (2.7 to 4.1) Primary Endpoint: 2-year implant survival rate: 97% [87, 99]. Prosthetic dislocation: 0%. Secondary Endpoint: Modified HHS (pain & functional sub score) improved from baseline 39.7 [34.6, 44.7] to 75.8 [72.1, 79.6] at 1-year and to 86.7 [83.7, 89.7] at 2-year (p<0.0001). Conclusions: The short-term benefit-risk balance was deemed satisfactory

scholarly journals Press-fit acetabular cup fixation: Principles and testing

1999 ◽  
Vol 213 (1) ◽  
pp. 33-39 ◽  
Author(s):  
W Macdonald ◽  
L V Carlsson ◽  
G J Charnley ◽  
C M Jacobsson
Keyword(s):  
Acetabular Cup ◽  
Press Fit ◽  
Fixation Principles

The new press-fit ceramic Moje metatarsophalangeal joint replacement: short-term outcomes

The Foot ◽  
2004 ◽  
Vol 14 (3) ◽  
pp. 124-128 ◽  
Author(s):  
Talal Ibrahim ◽  
Grahame John Saint Clair Taylor
Keyword(s):  
Joint Replacement ◽  
Metatarsophalangeal Joint ◽  
Short Term ◽  
Press Fit

Effect of cementless acetabular cup geometry on strain distribution and press-fit stability

1997 ◽  
Vol 12 (2) ◽  
pp. 207-212 ◽  
Author(s):  
Michael D. Ries ◽  
Mark Harbaugh ◽  
Jeff Shea ◽  
Richard Lambert
Keyword(s):  
Strain Distribution ◽  
Acetabular Cup ◽  
Press Fit

scholarly journals Effect of interposed tissue and contamination on the initial stability of a highly porous press‐fit acetabular cup

2019 ◽  
Vol 37 (5) ◽  
pp. 1117-1122 ◽  
Author(s):  
Daniel H. Wiznia ◽  
Garrett Joyal ◽  
Gregg Schmidig ◽  
Raga Rajaravivarma ◽  
Raja Lokesh ◽  
...  
Keyword(s):  
Acetabular Cup ◽  
Press Fit ◽  
Initial Stability ◽  
Highly Porous

Double-Modular Hip Device Design Susceptible to Stress Corrosion Failure

2009 ◽  
Author(s):  
Sara A. Atwood ◽  
Eli W. Patten ◽  
Kevin J. Bozic ◽  
Lisa A. Pruitt ◽  
Michael D. Ries
Keyword(s):  
Femoral Head ◽  
Femoral Anteversion ◽  
Metal Alloy ◽  
Leg Length ◽  
Acetabular Cup ◽  
Corrosion Failure ◽  
Total Hip ◽  
Press Fit ◽  
Free Mobility ◽  
Hip Replacements

Total hip replacements restore pain-free mobility to approximately 200,000 patients in the U.S. each year [1]. A typical hip system comprises a metal alloy stem, a femoral head (ceramic or metal alloy), and a polyethylene acetabular cup fit into a metal alloy backing. A modular press-fit Morse taper is commonly used to attach the femoral head to the stem. There are also more recent designs that incorporate a second interface at the neck-stem junction (Figure 1). Increased modularity in total hip replacement design allows the surgeon to intraoperatively preserve patient anatomy such as leg length and femoral anteversion and better balance the surrounding soft tissue for optimal biomechanics. However, modularity also increases the number of mechanical junctions and interfaces in the device which may lead to complications such as corrosion, wear, and fracture.

scholarly journals Good mid-term results with the trident peripheral self-locking cup: a clinical evaluation and migration measurement with EBRA

2020 ◽  
Author(s):  
Dietmar Dammerer ◽  
Philipp Blum ◽  
David Putzer ◽  
Andreas Tscholl ◽  
Michael C. Liebensteiner ◽  
...  
Keyword(s):  
Trial Registration ◽  
Inclusion Criteria ◽  
Acetabular Cup ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Press Fit ◽  
Medical Histories ◽  
Migration Analysis ◽  
Radiological Analysis

Abstract Introduction The most common cause of failure in total hip arthroplasty (THA) is aseptic loosening. Uncemented cup migration analysis by means of Einzel–Bild–Roentgen–Analyse (EBRA) has shown to be a good predictive indicator for early implant failure if the cup migrates more than 2 mm within 4 years after surgery. In this study, we performed a migration analysis of an uncemented peripheral self-locking (PSL) press-fit cup after 4 years follow-up. Materials and methods We retrospectively reviewed all patients who received a trident PSL press-fit cup at our department between 2004 and 2017. A total of 636 patients were identified. As inclusion criteria for radiological analysis, a minimum follow-up of 2 years was defined. We reviewed medical histories and performed radiological analysis using EBRA software. EBRA measurements and statistical investigations were performed by two independent investigators. Results A total of 149 cups in 146 patients (female 82; male 64) met our inclusion criteria. Mean age at surgery was 65 years (33–89). We found a significant improvement in the WOMAC score pre- to postoperative (p < 0.0001). EBRA migration analysis showed a mean total migration of 0.6 mm (0.0–8.2) over our follow-up period of 4 years. Of the investigated cups, 69.8% showed a migration rate smaller than 2 mm in the investigated follow-up. Conclusion The acetabular cup used in our study provides low migration at final follow-up. Therefore, a good long-term outcome can be expected for the PSL cup. Trial registration Trial registration number is 20181024-1875 and date of registration is 2018-10-24.

Post‐surgical flap placement following osseous surgery: A short‐term clinical evaluation

2019 ◽  
Vol 91 (4) ◽  
pp. 501-507
Author(s):  
Jeffrey K. Penner ◽  
David E. Deas ◽  
Michael P. Mills ◽  
John Hanlon ◽  
Jonathan Gelfond ◽  
...  
Keyword(s):  
Clinical Evaluation ◽  
Surgical Flap ◽  
Short Term

Failure of an Uncemented Press-Fit Acetabular Cup in Primary Total Hip Arthroplasty

2002 ◽  
Vol 12 (4) ◽  
pp. 371-377 ◽  
Author(s):  
N. Rama Mohan ◽  
P. Grigoris ◽  
D.L. Hamblen
Keyword(s):  
Femoral Stem ◽  
Acetabular Cup ◽  
Total Hip ◽  
Press Fit ◽  
Total Hip Replacements ◽  
Locking Mechanism ◽  
Hip Replacements ◽  
The Mean ◽  
Open Position ◽  
Primary Total Hip Arthroplasty

We reviewed fifteen primary total hip replacements performed using the uncemented, non-porous coated press-fit AcSys Shearer Cup. A modular titanium straight femoral stem with a 32mm head was used in all cases. The mean age of the group containing five males and 10 females was 66 years. Eight cups have been revised for aseptic loosening at a mean of seven years and the remaining four cups are radiologically loose. At revision surgery none of the cups showed any evidence of bony ingrowth. Our 10-year results with this cup indicate an unacceptably high failure rate of 80%. Absence of bony ingrowth and the lack of a secure locking mechanism between the polyethylene liner and the metal shell are the most important causes of failure. The use of a 32mm diameter head and implantation of the cup in an open position contributed to this failure. Even though this cup is no longer manufactured, our experience suggests that all non-porous coated cups should be closely followed up.

History of lobotomy in Poland

2017 ◽  
Vol 29 (1) ◽  
pp. 3-21 ◽  
Author(s):  
Kinga Jęczmińska
Keyword(s):  
Clinical Research ◽  
Clinical Evaluation ◽  
Long Term Results ◽  
Short Term ◽  
History Of

In Poland, there were 176 cases of prefrontal leucotomy performed by Moniz’s method between 1947 and 1951. There were also several cases in which alternative psychosurgical techniques were used: prefrontal topectomy by Bilikiewicz and colleagues, and prefrontal topischemia by Ziemnowicz. This article analyses the following: publications by Choróbski, who performed lobotomy in Poland, and by Korzeniowski, who assessed its short-term results; a report by Bornsztajn, who reviewed general results of the method; and clinical research by Broszkiewicz and by Konieczyńska, who assessed Polish patients in terms of long-term results of lobotomy. Negative clinical evaluation of lobotomy led to its abandonment in Poland, a decision strengthened by a regulation that forbade lobotomy in the USSR and impacted Polish psychiatry.

Sign in / Sign up

Export Citation Format

Share Document