The literature article entitled, "persistent noise after ceramic-on-ceramic total hip replacement due to bearing coupling size mismatch: a case report" written by chee-ken chan, dong-hyun lee, taek-rim yoon, and kyung-soon park published by journal of orthopaedic science 2017 was reviewed.The article's purpose was to report on a case study of a 61 yo male with received a l tha with depuy aml hip system and ceramic on ceramic head and liner.The patient reported noise for a continuous 3 years with no evidence of patient harm or discomfort.No product defects could be detected radiographically.Figure 1 provides further detail that radiographic detection of subsidence of the stem approximately 10 mm occurred 3 years post implantation leading to limb asymmetry (as narrative description details).Patient opted voluntarily for exploratory surgery and intraoperative the femoral ceramic 32 mm head was determined mismatched with 36 mm diameter liner.The femoral head was exchanged to a 36 mm ceramic head with metal sleeve and long neck.There was no evidence of stripe, debris or impingement.Patient recovered well and reported as very satisfied as the problem of noisy hip and leg shortening was now resolved.Depuy products: aml stem, ceramic head, ceramic liner, depuy cup.Adverse events: audible noise (determined to be femoral head within the liner).Limb asymmetry (treated by revision).Stem subsidence (treated by revision surgery).
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