Review on squeaking hips  

作　　者：Yadin David Levy Selin Munir Shane Donohoo William Lindsay Walter 

机构地区：[1]Specialist Orthopaedic Group,Mater Clinic [2]Silesco Pty Ltd,Mater Clinic Australia

出　　处：《World Journal of Orthopedics》2015年第10期812-820,共9页世界骨科杂志（英文版）

摘　　要：Squeaking is a well-recognized complication for hardon-hard bearings.The nature of squeaking is not yet completely understood however it is considered a multifactorial phenomenon.Patient,implant,and surgical factors play a role in squeaking.It is believed that mechanisms damaging the fluid film lubrication in which these bearings function optimally have a critical role.Such mechanisms include edge loading,stripe wear,impingement,third body particles and ceramic fracture.The resonance of metallic parts can produce noise in the human audible range hence the implant metallurgic composition and design may play a role.Implant positioning can facilitate impingement and edge loading enhancing the occurrence of squeaking.The recent introduction of large heads(> 36 mm) 4th generation ceramic-on-ceramic bearing may accentuate the conditions facilitating noise formation; however the current literature is insufficient.Clinically,squeaking may manifest in extreme hip positions or during normal gait cycle however it is rarely associated with pain.Evaluations of patients with squeaking include clinical and radiographic assessments.Computer tomography is recommended as it can better reveal ceramic breakage and implant malposition.The treatments for most squeaking patients include reassurance and activity modification.However for some,noise can be a problem,requiring further surgical intervention.In the occurrence of ceramic fracture,implant failure,extreme components malposition,instability and impingement,surgery should be advised.This review will aim to discuss the current literature regarding squeaking.Squeaking is a well-recognized complication for hardon-hard bearings.The nature of squeaking is not yet completely understood however it is considered a multifactorial phenomenon.Patient,implant,and surgical factors play a role in squeaking.It is believed that mechanisms damaging the fluid film lubrication in which these bearings function optimally have a critical role.Such mechanisms include edge loading,stripe wear,impingement,third body particles and ceramic fracture.The resonance of metallic parts can produce noise in the human audible range hence the implant metallurgic composition and design may play a role.Implant positioning can facilitate impingement and edge loading enhancing the occurrence of squeaking.The recent introduction of large heads(> 36 mm) 4th generation ceramic-on-ceramic bearing may accentuate the conditions facilitating noise formation; however the current literature is insufficient.Clinically,squeaking may manifest in extreme hip positions or during normal gait cycle however it is rarely associated with pain.Evaluations of patients with squeaking include clinical and radiographic assessments.Computer tomography is recommended as it can better reveal ceramic breakage and implant malposition.The treatments for most squeaking patients include reassurance and activity modification.However for some,noise can be a problem,requiring further surgical intervention.In the occurrence of ceramic fracture,implant failure,extreme components malposition,instability and impingement,surgery should be advised.This review will aim to discuss the current literature regarding squeaking.

关 键 词：SQUEAKING Total HIP ARTHROPLASTY Ceramicon-ceramic LUBRICATION Edge loading METAL-ON-METAL 

分 类 号：R687.4[医药卫生—骨科学]