Document Detail

Incidence and factors associated with squeaking in alumina-on-alumina THA.
MedLine Citation:
PMID:  20512438     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The alumina-on-alumina bearing surface, which has a high wear resistance and a good biocompatibility, is widely used in THA but recently has been associated with squeaking. While various authors have reported factors associated with squeaking, they remain poorly understood.
QUESTIONS/PURPOSES: To contribute to the debate on squeaking we therefore asked the following questions: (1) What is the incidence of squeaking in alumina-on-alumina THA? (2) What factors are associated with squeaking in alumina bearings in our practice?
METHODS: We retrospectively reviewed 168 patients (173 hips) who had primary alumina-on-alumina THAs. The mean age of the patients was 53 years (range, 18 to 81 years). Minimum followup was 5.6 years (average, 7.3 years; range, 5.6-9.4 years). All patients were evaluated clinically and radiographically with attention to periprosthetic osteolysis, squeaking, and ceramic fracture. When the patient reported squeaking, we determined the onset, reproducibility, and activities associated with the squeaking. We recorded patient (gender, age, height, weight, and body mass index) and surgical factors (abduction angle of cup, size and length of ceramic head component, and diameter of cup in the implant).
RESULTS: Eight of the 168 patients (5%) had squeaking hips. Squeaking was more common in males and in those with large ceramic heads. There were no complications or revisions in the squeaking group. One ceramic liner fracture was associated with trochanteric nonunion.
CONCLUSIONS: When recommending alumina-on-alumina bearing surfaces to patients they should be clearly informed of the possibility of squeaking. Patients with risk factors for squeaking should be followed at regular intervals.
Il-Yong Choi; Yee-Suk Kim; Kyu-Tae Hwang; Young-Ho Kim
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  468     ISSN:  1528-1132     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-08     Completed Date:  2010-12-06     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3234-9     Citation Subset:  AIM; IM    
Department of Orthopaedic Surgery, Hanyang University Seoul Hospital, Seoul, South Korea.
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MeSH Terms
Aged, 80 and over
Aluminum Oxide*
Arthroplasty, Replacement, Hip / adverse effects*,  instrumentation*
Hip Joint / radiography,  surgery*
Hip Prosthesis*
Middle Aged
Postoperative Complications / epidemiology,  etiology*,  radiography
Prosthesis Design
Prosthesis Failure
Republic of Korea
Retrospective Studies
Risk Assessment
Risk Factors
Time Factors
Treatment Outcome
Young Adult
Reg. No./Substance:
1344-28-1/Aluminum Oxide

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