Title :

Are CPR (Contact Patch to Rim) distance anomalies associated with the occurrence of abnormal noises from ceramic-on-ceramic THA?

Author(s) :

Sarrazin, Jérémy [Auteur]
Hôpital Roger Salengro [Lille]
Faculté de Médecine Henri Warembourg - Université de Lille
Halbaut, Marion [Auteur]
Hôpital Roger Salengro [Lille]
Faculté de Médecine Henri Warembourg - Université de Lille
Martinot, Pierre [Auteur]
Hôpital Roger Salengro [Lille]
Faculté de Médecine Henri Warembourg - Université de Lille
Putman, Sophie [Auteur]
Hôpital Roger Salengro [Lille]
Faculté de Médecine Henri Warembourg - Université de Lille
METRICS : Evaluation des technologies de santé et des pratiques médicales - ULR 2694
Migaud, Henri [Auteur]
Hôpital Roger Salengro [Lille]
Faculté de Médecine Henri Warembourg - Université de Lille
Marrow Adiposity & Bone Lab (MABLab) - ULR 4490
Girard, Julien [Auteur]
Hôpital Roger Salengro [Lille]
Faculté de Médecine Henri Warembourg - Université de Lille
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369

Journal title :

Orthopaedics & Traumatology: Surgery & Research

Abbreviated title :

Orthop Traumatol Surg Res

Publication date :

2022-10-17

ISSN :

1877-0568

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

Introduction The ceramic-on-ceramic couple in total hip arthroplasties (THA) has the advantage of excellent wear resistance and the bioinert nature of its debris. Noise occurring from this friction torque is a common ...
Show more >Introduction The ceramic-on-ceramic couple in total hip arthroplasties (THA) has the advantage of excellent wear resistance and the bioinert nature of its debris. Noise occurring from this friction torque is a common complication, the contributing factors of which are debated. The noise is caused by a lack of lubrication, due in most part to the positioning of the acetabular cup. The study of metal-on-metal couples identified that the calculation of the Contact Patch to Rim (CPR) distance provides information on lubrication defects and also that it is correlated with the wear of metal-on-metal implants. This CPR distance is not recognized to be correlated with the occurrence of noise for the ceramic-on-ceramic couple at a caliber ≤ 36 mm. We therefore conducted a retrospective case-control study to assess: 1) The influence of the CPR distance on noise occurrence; 2) Whether other factors associated to noise occurrence exist? Hypothesis Our hypothesis was that a low CPR distance was correlated with noise occurrence. Method This was a case-control study with 3 controls for each case, analyzing 21 THAs (21 patients) with noise compared to 63 THAs without noise (63 patients) matched for age, sex and body mass index. These patients were taken from a continuous retrospective series of 96 patients for 104 total hip arthroplasties (THA) with a single operator and 4th generation Biolox Delta ceramic-on-ceramic single implant, performed between 2007 and 2012. The calculation of the CPR distance was then performed for both groups using measurements of inclination angles, anteversion angles, and implant data regarding the head/insert contact angle, head/insert diameter and clearance. Results At the mean follow-up of 7.1 years ± 1.2 [5 to 9.6], the mean CPR distance was lower in the noise group 10 mm ± 3.3 [3.8 to 16.4] than in the control group 14.8 mm ± 4.3 [7.3 to 24.4] (p = 0.0007). The mean inclination angle was higher in the noise group 45.1° ± 7.8 [31 to 62] than in the control group 41.2° ± 7.2 [26 to 56] (p = 0.04). The occurrence of noise was independent of anteversion, head caliber, cup diameter, neck length and stem size, and stem type (standard or lateralized). Conclusion A low CPR distance was correlated with the occurrence of noises, similarly a steep inclination was correlated with the occurrence of noises. Level of evidence III; Retrospective case-control study.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CHU Lille

Collections :

• METRICS : Evaluation des technologies de santé et des pratiques médicales - ULR 2694

Submission date :

2023-11-15T03:12:25Z
2024-01-09T14:49:01Z