Good mid-term outcome of the rotating hinge knee in primary total knee arthroplasty: Results of a single center cohort of 106 knees with a median follow-up of 6.3 years

Jake von Hintze, Mika Niemeläinen, Harri Sintonen, Jyrki Nieminen, Antti Eskelinen

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Abstract

Background: The prognosis of complex primary total knee arthroplasty (TKA) with severe deformity and ligament deficiency is not clear. There is a paucity of evidence in the current literature on treatment outcomes of the rotating hinge knee implants in primary TKA. The aim of this study was to determine the mid-term clinical, radiographic, and health-related quality of life (HRQoL) outcomes in patients who had undergone complex primary TKA using single hinged knee replacement. Methods: In total, 106 complex primary TKAs (101 patients) were performed using the single rotating hinged knee (RHK) implant design at our institution between January 2004 and December 2013. We conducted a retrospective analysis of prospectively collected outcome data of these patients, obtaining also information on all possible revision surgeries from the Finnish Arthroplasty Register, and conducted a prospective follow-up study of all living patients. Results: The 10-year Kaplan-Meier survival rate of the RHK knees was 91.6% (95% CI 86.0% to 97.2%) with revision for any reason as the endpoint. Overall, eight knees (7.5 %) underwent revision surgery during the follow-up. None of the unrevised RHK knees were radiographically loose. The majority of patients evinced good clinical outcome and quality of life as measured with patient reported outcome measures. Conclusion: The hinge knee replacement which was assessed current study can be regarded as a suitable option in complex primary TKA, provided adequate attention is paid to the correct indications and patient selection.

Original languageEnglish
Pages (from-to)273-281
Number of pages9
JournalKNEE
Volume28
DOIs
Publication statusPublished - Jan 2021
Publication typeA1 Journal article-refereed

Keywords

  • Complex primary TKA
  • Health-related quality of life
  • Hinged knee
  • Knee replacement
  • Patient reported outcome measures
  • Primary total knee arthroplasty
  • Rotating hinge

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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