Pigmented villonodular synovitis of the knee: results from 13 cases

Arthroscopy. 1989;5(1):62-4. doi: 10.1016/0749-8063(89)90094-7.


Arthroscopy is an indispensable tool in the diagnosis, treatment, and postoperative follow-up of pigmented villonodular synovitis (PVNS) and enables classification of PVNS into three forms: diffuse, localized, and mixed. A series of 13 cases of PVNS of the knee is presented; 12 patients underwent surgery. According to the anatomic type of PVNS found, the authors used extensive classic surgery or endoscopy. Follow-up averaged 4.2 years (range, 1-10 years). The best results were obtained in cases of localized PVNS. Overall, nine patients were totally asymptomatic at follow-up. Four patients experienced some pain when fatigued or with changes in the weather. There was no recurrence of symptoms.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Arthroscopy
  • Female
  • Follow-Up Studies
  • Humans
  • Knee Joint / pathology
  • Knee Joint / surgery*
  • Male
  • Middle Aged
  • Synovitis / surgery*
  • Synovitis, Pigmented Villonodular / pathology
  • Synovitis, Pigmented Villonodular / surgery*