Clinical Orthopaedics and Related Research®

, Volume 471, Issue 3, pp 883–890

Does Combined Open and Arthroscopic Synovectomy for Diffuse PVNS of the Knee Improve Recurrence Rates?

  • Matthew W. Colman
  • Jason Ye
  • Kurt R. Weiss
  • Mark A. Goodman
  • Richard L. McGoughIII
Symposium: Highlights from the First Combined 2011 Meeting of the Musculoskeletal Tumor Society and Connective Tissue Oncology Society

DOI: 10.1007/s11999-012-2589-8

Cite this article as:
Colman, M.W., Ye, J., Weiss, K.R. et al. Clin Orthop Relat Res (2013) 471: 883. doi:10.1007/s11999-012-2589-8

Abstract

Background

Diffuse-type pigmented villonodular synovitis (PVNS) has a high local recurrence rate and as such can lead to erosive destruction of the involved joint. Multiple surgical modalities exist, but it is unknown which technique best minimizes local recurrence and surgical morbidity.

Questions/purposes

We compared recurrence rates, arthritis progression, and complications between arthroscopic and open modalities for diffuse PVNS of the knee.

Methods

We retrospectively identified 103 patients with PVNS treated between 1993 and 2011. Of these, 48 had diffuse-type PVNS of the knee treated by all-arthroscopic, open posterior with arthroscopic anterior, or open anterior and open posterior synovectomy. We recorded patient demographics, treatment profiles, recurrence rates, and arthritic progression. Minimum followup was 3 months (median, 40 months; range, 3–187 months).

Results

Recurrence rates were lower in the open/arthroscopic group compared with the arthroscopic or open/open groups: 9% versus 62% versus 64%, respectively. Arthritic progression occurred in 17% of the total study group with 8% going onto total knee arthroplasty within the followup period. We detected no difference between groups with regard to arthritic progression or progression to arthroplasty. The most common complication was hemarthrosis, which we drained in three patients (6% of the total study group), but there were no detectable differences between groups.

Conclusion

Open posterior with arthroscopic anterior synovectomy is a viable, comprehensive approach to diffuse PVNS of the knee and provides both low recurrence rates and a low postoperative complication profile. Greater numbers of recurrences may be partially explained in the arthroscopic group by technical challenges associated with posterior arthroscopic synovectomy and in the open/open group by selection bias toward more aggressive disease.

Level of Evidence

Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.

Copyright information

© The Association of Bone and Joint Surgeons® 2012

Authors and Affiliations

  • Matthew W. Colman
    • 1
  • Jason Ye
    • 1
  • Kurt R. Weiss
    • 1
  • Mark A. Goodman
    • 1
  • Richard L. McGoughIII
    • 1
  1. 1.Division of Orthopedic Oncology, Department of Orthopedic SurgeryThe University of PittsburghPittsburghUSA