Two Cases of Metallosis Following Total Hip Arthroplasty
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- Imamura Takeshi
- Department of Orthopaedic Surgery, Oita Prefectural Hospital
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- Yamada Kenji
- Department of Orthopaedic Surgery, Oita Prefectural Hospital
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- Inoue Hirofumi
- Department of Orthopaedic Surgery, Oita Prefectural Hospital
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- Mihara Eiichi
- Department of Orthopaedic Surgery, Oita Prefectural Hospital
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- Kajiyama Siro
- Department of Orthopaedic Surgery, Oita Prefectural Hospital
Bibliographic Information
- Other Title
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- 著明なメタローシスを生じたBipolar THAの小経験
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Abstract
We report two cases of metallosis following total hip arthroplasty (THA). Case 1 was a 57-year-old female, operated for left coxarthrosis by THA with bone-grafting acetabuloplasty with a bipolar endoprosthesis. Sapphire screws were used for grafted bone fixation. Three years after the operation, gradual migration of the outer head occurred and fracture of the screws was observed. Eight years later, radiographs showed severe metallosis of the surrounding tissue. As she had many general disorders, she was observed conservatively.<BR>Case 2 was a 57-year-old female with severe right coxarthrosis, operated in the same way as the case 1.4 years after the operation, a big mass was found in the inguinal resion. Radiographs showed migration of the outer head and severe metallosis. In the revision, the mass was found to be black granulaion tissue enveloped by thin membrane. The inner head had warned out severely. Detailed examination, including scanning electron micrograph and energy-dispersive x-ray analysis, revealed that, many rough edged ceramic particles originating from the fractured ceramic screws had become embedded in the inner surface of the polyethylene bearing insert. These ceramic fragments had entered the prosthetic joint space during joint movement, thereafter causing continuous abrasion of the metal head.
Journal
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- Orthopedics & Traumatology
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Orthopedics & Traumatology 53 (3), 564-570, 2004
West-Japanese Society of Orthopedics & Traumatology
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Keywords
Details 詳細情報について
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- CRID
- 1390001204938424960
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- NII Article ID
- 130004460296
- 10013597624
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- NII Book ID
- AN00126582
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- ISSN
- 13494333
- 00371033
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed