scholarly journals Modular Head Mismatch in THA

2015 ◽  
Vol 5 (4) ◽  
Author(s):  
Timothy McTighe
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Biological Response ◽  
Office Visit ◽  
Direct Anterior Approach ◽  
Fretting Wear ◽  
Total Hip ◽  
Ceramic Femoral Head ◽  
Ceramic On Ceramic

Modular femoral heads have been used successfully since the mid-1980s in total hip arthroplasty. The use of metallic modular junctions presents a unique set of advantages and problems for use in total hip arthroplasty (THA). The separation of the head from the stem by a Morse taper has provided many benefits on the precision and balancing the reconstructed joint. Historically few complications have been reported for the modular Morse taper connection between the femoral head and trunnion of the stem in metal-on-polyethylene bearings. However, the risks or concerns are a little harder to identify and deal with. Certainly corrosion, and fatigue failure are the two most prevalent concerns but now the specifics of fretting wear and corrosive wear increasing particulate debris and the potential biological response is having an impact on the design and potential longevity of the reconstructed hip. This paper is dealing with a simpler consequence of head/stem modularity. Modular head mismatch to the socket bearing articulation.Two patients by two different surgeons at two different hospitals underwent cementless THA. Both patients were female and both presented with degenerative changes to the hip articulation. Both patients underwent hip replacement via a direct anterior approach using a standard hemispherical porous coated shell. One patient had a ceramic on ceramic bearing and the other had a ceramic head on a polyethylene liner. Both patients had a 32 mm inside diameter liner implanted and both had a 36 mm ceramic femoral head. The ceramic on ceramic mismatch was not recognized until the second office visit at eight weeks. The ceramic poly mismatch was not recognized until first office visit at six weeks. Both underwent correction surgery.These two cases demonstrate human mistakes can be made and steps need to be established to prevent future mistakes of this nature.

Fracture of a Ceramic Femoral Head After Ceramic-On-Ceramic Total Hip Arthroplasty

2006 ◽  
Vol 21 (7) ◽  
pp. 1072-1073 ◽  
Author(s):  
Manuel Malillos Torán ◽  
Jorge Cuenca ◽  
Ángel Antonio Martinez ◽  
Antonio Herrera ◽  
Javier Vicente Thomas
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Ceramic Femoral Head ◽  
Ceramic On Ceramic

Comparison of Polyethylene Wear between Highly Crosslinked and Annealed UHMWPE and Conventional UHMWPE against Ceramic Heads in Total Hip Arthroplasty

2012 ◽  
Vol 529-530 ◽  
pp. 279-284 ◽  
Author(s):  
Taishi Sato ◽  
Yasuharu Nakashima ◽  
Mio Akiyama ◽  
Takuaki Yamamoto ◽  
Taro Mawatari ◽  
...  
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Polyethylene Wear ◽  
Wear Rates ◽  
Head Penetration ◽  
Total Hip ◽  
Patient Demographics ◽  
Ceramic Femoral Head ◽  
Implantation Period

The purpose of this study was to examine the effects of ceramic femoral head material on the wear of annealed, crosslinked ultra-high molecular weight polyethylene (UHMWPE) (XLPE) in total hip arthroplasty compared to non-crosslinked conventional UHMWPE (CPE). XLPE was fabricated by crosslinking with 60 kGy irradiation and annealing. Femoral heads made from zirconia and alumina ceramics, and cobalt-chrome (CoCr) of 22 mm or 26 mm diameter were used. In this study, the femoral head penetration into the cup was measured digitally on radiographs of 70 hips with XLPE and 50 hips with CPE. The average follow-up periods were 6.1 and 12.7 years, respectively. The steady wear rate of XLPE was significantly lower than those of CPE (0.002 versus 0.08 mm/year, respectively). Zirconia displayed increased wear rates compared to alumina in CPE; however, there was no difference among head materials in XLPE (0.0028, 0.011 and 0.009 mm/year for zirconia, alumina and CoCr, respectively). Neither head size or implantation period impacted XLPE wear. In contrast to CPE, XLPE displayed low wear rates surpassing the effects of varying femoral head material, size, implantation period and patient demographics.

Early Osteolysis Following Total Hip Arthroplasty with Use of a Hylamer Liner in Combination with a Modular Ceramic Femoral Head. A Case Report*

1999 ◽  
Vol 81 (10) ◽  
pp. 1446-9 ◽  
Author(s):  
BRADLEY K. VAUGHN ◽  
THOMAS B. DAMERON ◽  
THOMAS W. BAUER ◽  
YUICHI MOCHIDA ◽  
TOSHIHIRO AKISUE ◽  
...  
Keyword(s):  
Case Report ◽  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Ceramic Femoral Head

REVISION TOTAL HIP ARTHROPLASTY PERFORMED AFTER FRACTURE OF A CERAMIC FEMORAL HEAD

2003 ◽  
Vol 85 (5) ◽  
pp. 825-830 ◽  
Author(s):  
JÉRÔME ALLAIN ◽  
FRANÇOISE ROUDOT-THORAVAL ◽  
JOEL DELECRIN ◽  
PHILIPPE ANRACT ◽  
HENRI MIGAUD ◽  
...  
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Revision Total Hip Arthroplasty ◽  
Total Hip ◽  
Ceramic Femoral Head

scholarly journals A Case of Ceramic Femoral Head Fracture in Total Hip Arthroplasty.

2003 ◽  
Vol 52 (2) ◽  
pp. 376-380
Author(s):  
Kenji Tsunoda ◽  
Masamori Shigematsu ◽  
Toshimitsu Koga ◽  
Yukihiko Tsutsumi ◽  
Takao Hotokebuchi
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Femoral Head Fracture ◽  
Total Hip ◽  
Ceramic Femoral Head

scholarly journals Mode I and II Wear in Ceramic on Ceramic Total Hip Arthroplasty: A Case Report

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Kunal Mohan ◽  
Niall P. McGoldrick ◽  
Conor O’Driscoll ◽  
John F. Quinlan
Keyword(s):  
Case Report ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Patient Specific ◽  
Mode I ◽  
Total Hip ◽  
Ceramic Bearing ◽  
Ceramic Femoral Head ◽  
Keywords Hip ◽  
Ceramic On Ceramic

Introduction: Elective total hip arthroplasty (THA) is a common procedure and has been associated with favorable outcomes in both elderly and younger patients. A variety of implant and articular components exist so to allow surgeons to make a patient-specific choice with the intent of maximizing both patient outcomes and implant survival. The utilization of ceramic bearing surfaces during THA has become increasingly prevalent, with their tribological profile conveying favorable wear and osteolysis-resistant properties. Typically, ceramic articulating components are most susceptible to failure through brittle fracture or complications such as squeaking. Case Report: This case describes a 68-year-old Caucasian male who underwent revision of ceramic on ceramic THA due to pain, with intraoperative analysis revealing evidence of gross Mode I acetabular ceramic component wear with a resultant Mode II wear articulation between the ceramic femoral head and acetabular liner. Conclusion: Wear between ceramic implants in THA is infrequently reported, and as such awareness of this uncommon phenomena as well as its potential causative factors is important when considering either primary or revision THA involving ceramic bearing components. Keywords: Hip, arthroplasty, revision, ceramic, wear.

scholarly journals Metallic Modular Taper Junctions in Total Hip Arthroplasty

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Timothy McTighe ◽  
Declan Brazil ◽  
Louis Keppler ◽  
John Keggi ◽  
Edward McPherson
Keyword(s):  
Risk Factors ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Biological Response ◽  
Corrosive Wear ◽  
Fretting Wear ◽  
Joint Mechanics ◽  
Total Hip ◽  
Particulate Debris ◽  
And Performance

The emergence of modularity in total hip arthroplasty (THA) in the 1980s and 1990s was based on the fact that the benefit of these design features outweighed the risk. The use of metallic modular junctions presents a unique set of advantages and problems for use in THA. The advantages include improvement in fit and fill of the implant to bone, restoration of joint mechanics, reduced complications in revision surgery and reduction of costly inventory. However, the risks or concerns are a little harder to identify and deal with. Certainly corrosion, and fatigue failure are the two most prevalent concerns but now the specifics of fretting wear and corrosive wear increasing particulate debris and the potential biological response is having an impact on the design and potential longevity of the reconstructed hip. Material and designs are facing a shorter life expectancy than what was previously thought, mostly due to an increasing level of physical activity by the patient. Because there are no accurate laboratory test whereby the service life and performance of these implants can be predicted, early controlled clinical evaluations are necessary. Early publication of testing and clinical impressions should be encouraged in an attempt to reduce exposure to potential at risk patients, implants and material. The reduction and possible elimination of risks will require a balancing of all the variables requiring a multidisciplinary endeavor.This paper is designed to review the risk factors, and benefits of modular junctions in total hip arthroplasty (THA). Also some basic engineering principals that can reduce risk factors and improve functionality of modular junctions.

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