Proximal Interphalangeal Joint Arthroplasty Using a Silicone Implant: A Comparison Between Integra and NeuFlex in 72 Cases

Kelly Weistra, Hester J. Kan, Veerle A. H. J. van Alebeek, Marco J. P. F. Ritt

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: Osteoarthritis of the hand can lead to pain, stiffness, and deformation, and thus to functional disability. The purpose of this study was to compare short-term clinical outcomes of 2 silicone proximal interphalangeal (PIP) joint implants, NeuFlex and Integra, in patients with primary osteoarthritis. Methods: We included 72 PIP joints, of which 40 were replaced by a NeuFlex implant and 32 by an Integra implant. The average follow-up was 12 months for the Integra group and 16 months for the NeuFlex group. Results: There was no change in active flexion preoperatively and postoperatively. Extension lag and Disabilities of the Arm, Shoulder, and Hand score decreased substantially in both groups, whereas grip strength and Patient-Specific Functional Scale (PSFS) score increased. All patients were satisfied. Between groups, there was a significant difference in the PSFS score, in favor of the Integra group. Conclusions: Both implants have excellent results, but more research is needed with more patients to prevent bias and to determine the long-term outcome of these implants.
Original languageEnglish
JournalHand
Early online date2022
DOIs
Publication statusE-pub ahead of print - 2022

Keywords

  • Integra
  • NeuFlex
  • hand surgery
  • osteoarthritis
  • proximal interphalangeal joint arthroplasty
  • silicone or silastic PIP joint implant

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