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

Kerschner, Alexander; King, David; Vetter, Carole · J Orthop · 2021

retrospective_cohort · Level III

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Abstract

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). 41 patients were grouped by initial procedure and tracked for disease recurrence and functional outcomes (Lysholm Scale). 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 <i>t</i>-test p = 0.25). There is no statistical evidence that the combined procedure harms functionality more than arthroscopic only or that recurrence rates differ between treatment methods.

Anatomy