What question did this study set out to answer?

To investigate the clinical presentation, radiographic patterns, and pathological mechanisms underlying early failure and persistent pain in cemented titanium alloy femoral stems.

December 1, 1996Clinical Orthopaedics and Related Research

Crevice Corrosion of Cemented Titanium Alloy Stems in Total Hip Replacements

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Authors

HWH.‐G. WillertGeorg Fischer (Switzerland)LCL. -G. Brob ck GBGottfried BuchhornUniversitätsmedizin Göttingen

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Implication

Retrospective analysis reveals severe crevice corrosion and acid-induced pain in cemented titanium hip stems, indicating titanium alloys should not be used with bone cement.

Key Points

To investigate the clinical presentation, radiographic patterns, and pathological mechanisms underlying early failure and persistent pain in cemented titanium alloy femoral stems.
Evaluated 28 patients who underwent revision surgery for painful cemented Müller straight titanium alloy femoral stems, with revisions occurring at an average of 25.5 months post-implantation.
Analyzed medical histories, radiographic progressions, tissue histology, intraoperative pH values, and retrieved femoral stems and polymethylmethacrylate cement fragments.
Pain recurred at a mean of 14.5 months (characteristically dull, continuous, and worse at rest), followed by spindle-shaped femoral thickening at 9 months and scalloping osteolyses at 20 months post-pain onset.
Retrieved implants demonstrated severe crevice corrosion with highly acidic pH values predominantly on distal stem surfaces, alongside proximal mechanical abrasion.
Corrosion products infiltrated the cement-bone interface, causing acid diffusion that prompted bone apposition and particle-induced foreign body granulomas leading to osteolysis.

Cite This Study

Willert et al. (1996) studied this question.

synapsesocial.com/papers/6a9726e20f79e4f014b326e1 https://doi.org/10.1097/00003086-199612000-00006

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Implication

Retrospective analysis reveals severe crevice corrosion and acid-induced pain in cemented titanium hip stems, indicating titanium alloys should not be used with bone cement.

Crevice Corrosion of Cemented Titanium Alloy Stems in Total Hip Replacements

Discussion

Member takes

Implication

Key Points

Cite This Study

Crevice Corrosion of Cemented Titanium Alloy Stems in Total Hip Replacements

Discussion

Member takes

Implication

Key Points

Cite This Study

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