First-time revision using impacted morsellised allograft bone with a cemented Exeter stem: radiostereometric analysis of stem migration over nine years

Research output: Contribution to journalArticle

Abstract

Previously, radiostereometric analysis following hip revision performed using impacted morsellised allograft bone and a cemented Exeter stem has shown continuous subsidence of the stem for up to five years. It is not known whether the subsidence continues thereafter. In our study, 17 of 25 consecutive osteo-arthritic patients with aseptically loose stems who underwent first-time revision using impacted morsellised allograft bone and a cemented Exeter stem were followed by yearly radiostereometric examinations for nine years. The mean subsidence at six weeks was 1.1 mm (0.1 to 2.3), from six weeks to one year 1.3 mm (0 to 2.6), from one to five years 0.7 mm (0 to 2.0), and from five to nine years 0.7 mm (0.1 to 3.1). That from six weeks to nine years was 2.7 mm (0 to 6.4) (95% confidence interval 2.0 to 3.5). The Charnley pain score significantly improved after revision, and was maintained at nine years, but walking ability deteriorated slightly as follow-up extended. Of the eight patients who were not followed for nine years, two had early subsidence exceeding 11 mm. Our findings show that in osteo-arthritic patients who undergo revision for aseptic loosening of the stem using impacted morsellised allograft bone and a cemented Exeter stem, migration of the stem continues over nine years at a slower rate after the first year, but without clinical deterioration or radiological loosening.

Details

Authors
External organisations
  • Hässleholm hospital
Research areas and keywords

Keywords

  • Aged, Aged, 80 and over, Arthroplasty, Replacement, Hip, Bone Substitutes, Bone Transplantation, Cementation, Equipment Failure Analysis, Female, Follow-Up Studies, Foreign-Body Migration, Hip Prosthesis, Humans, Male, Middle Aged, Osteoarthritis, Hip, Prosthesis Failure, Reoperation, Treatment Outcome, Journal Article
Original languageEnglish
Pages (from-to)746-50
Number of pages5
JournalJournal of Bone and Joint Surgery: British Volume
Volume93B
Issue number6
Publication statusPublished - 2011 Jun
Publication categoryResearch
Peer-reviewedNo
Externally publishedYes

Related research output

Vasileios Zampelis, 2017, Lund: Lund University, Faculty of Medicine. 77 p.

Research output: ThesisDoctoral Thesis (compilation)

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