Clinical outcomes of diffuse PVNS of the knee following arthroscopic complete synovectomy±posterior open resection

Alexander Kerschner; David King; Carole Vetter

doi:10.1016/j.jor.2021.10.001

Clinical outcomes of diffuse PVNS of the knee following arthroscopic complete synovectomy±posterior open resection

J Orthop. 2021 Oct 13:28:34-40. doi: 10.1016/j.jor.2021.10.001. eCollection 2021 Nov-Dec.

Authors

Alexander Kerschner¹, David King¹, Carole Vetter¹

Affiliation

¹ Department of Orthopaedic Surgery, Medical College of Wisconsin, USA.

Abstract

Introduction: This study compares recurrence rates and functional outcomes of patients who underwent anterior arthroscopic synovectomy versus combined anterior arthroscopic/posterior open synovectomy for diffuse pigmented villonodular synovitis (DPVNS).

Methods: 41 patients were grouped by initial procedure and tracked for disease recurrence and functional outcomes (Lysholm Scale).

Results: 24 patients (58.5%) had disease recurrence [16 (57.1%) arthroscopic, 8 (61.5%) combined, chi-square test p = 0.81]. The combined procedure mean Lysholm Score (75.4) exceeded the arthroscopic (68.1) (two-sample t-test p = 0.25).

Conclusions: There is no statistical evidence that the combined procedure harms functionality more than arthroscopic only or that recurrence rates differ between treatment methods.

Keywords: DPVNS; Lysholm score; Synovial membrane; Tumor recurrence.