gms | German Medical Science

14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

17.06. - 21.06.2019, Berlin

Article

Send article

Early result of Pyrodisc interposition arthroplasty for advanced thumb CMC joint osteoarthritis

Meeting Abstract

Search Medline for

  • presenting/speaker Yang-Guk Chung - Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
  • Seung Han Shin - Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea
  • Yong-Suk Lee - Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea

International Federation of Societies for Surgery of the Hand. International Federation of Societies for Hand Therapy. 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT). Berlin, 17.-21.06.2019. Düsseldorf: German Medical Science GMS Publishing House; 2020. DocIFSSH19-1270

doi: 10.3205/19ifssh0874, urn:nbn:de:0183-19ifssh08745

Published: February 6, 2020

© 2020 Chung et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

Text

Objectives/Interrogation: The osteoarthritis of the thumb CMC joint is one of the common medical problems in middle years of life. Management of advanced thumb CMC osteoarthritis is challenging. Resection arthroplasty and arthrodesis have been used traditionally and implant arthroplasty are gaining popularity recently. Since Sep 2013, we performed Pyrodisc interposition arthroplsties for advanced Eaton-Littler stage III thumb CMC joint osteoarthritis and analysed early result of them.

Methods: We analyzed 13 patients who had undergone Pyrodisc interposition arthroplsy for thumb basal joint arthritis in our hospital from September 2013 to March 2017 and had a minimum 6 month follow-up. All patients were women and the mean age at diagnosis was 64.4 (range: 54-75) years. All 14 joints in 13 patients revealed Eaton stage III osteoarthritis. The symptomatic improvement, the position and survivalship of implant and the stability of reconstructed joints, and any secondary procedure performed were evaluated. The mean follow up period was 28.3 (6-56) months.

Results and Conclusions: The Pain was completely relieved in 7 joints and improved in remaining 7 joints. The positions of implants were good in 9 and fair in 3 and poor in two joints. One of joint with poor position revealed a progressive medial subluxation with accompanied swan neck deformity, which required revision of CMC arthroplasty and MP joint fusion. The other joint with poor position showed dislodgement of Pyrodisc which might be associated with rupture of FCR tendon sling and repositioning and stabilization with tendon allograft was performed. All Pyrodiscs implanted were surviving at last follow up. The stability of reconstructed joints was maintained in 12 joints. Two patient complained hypesthesia on thenar area. The average Quick DASH score in 10 joints was 17.1 (5-39).

The Pyrodisc interposition arthroplsties was one of the reliable options in advanced thumb CMC joint osteoarthritis. To obtain good functional result, a proper surgical technique is mandatory.