Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica ›› 2015, Vol. 37 ›› Issue (2): 234-239.doi: 10.3881/j.issn.1000-503X.2015.02.017

• Orginal Article • Previous Articles     Next Articles

Surgical Treatment of Diffuse Pigmented Villonodular Synovitis of the Knee

Bo YANG1, Duan LIU2, Jin LIN1(), Jin JIN1, Xi-sheng WENG1, Wen-wei QIAN1, Jun QIAN1   

  1. 1Department of Orthopaedics,PUMC Hospital,CAMS and PUMC,Beijing 100730,China.
    2Department of General Surgery,Beijing First Hospital of Integrated Chinese and Western Medicine,Beijing 100026,China
  • Received:2015-03-11 Online:2015-02-28 Published:2015-05-01

Abstract: ObjectiveTo compare the roles of open synovectomy and arthroscopic synovectomy in the treatment of diffuse pigmented villonodular synovitis(D-PVNS).MethodsForty-seven patients suffered from D-PVNS of knee joint who underwent surgical treatment with complete follow-up data from March 1994 to October 2013 were retrospectively analyzed. All patients were divided into two groups as open synovectomy group(n=17)and arthroscopic synovectomy group(n=30)according to the surgical procedure. Routine radiation therapy was applied in both groups after the surgery. The mean follow-up period was(15.7±16.3)months(range:10-30 month). The range of motion,International Knee Documentation Committee(IKDC)score and Lysholm score before the surgery and at the final follow-up were compared respectively.ResultsRecurrence was noted in 8 patients(17.0%),among whom 3 were from the open synovectomy group and 5 from the arthroscopic synovectomy group,resulting a recurrence rate of 17.6% and 16.7%,respectively,in these two groups(P>0.05). The range of motion,IKDC score,and Lysholm score at final follow-up and before the operation were(97.5±14.3)° vs.(69.7±12.6)°,(74.5±6.1) vs. (38.6±5.4)scores,and (77.5±5.8) vs. (42.4±4.6)scores,respectively,in the open synovectomy group,and were(128.6±13.9)° vs.(64.9±13.2)°,(87.4±6.7) vs. (37.2±4.9)scores,and (86.2±6.2) vs. (41.9±5.3)scores,respectively,in the arthroscopic synovectomy group(all P<0.05). Obviously,the range of motion,IKDC score,and Lysholm score at the final follow-up were significantly superior to the pre-operative findings,and were also significantly better in the arthroscopic synovectomy group than in the open synovectomy group(P<0.05).ConclusionsOpen synovetomy and arthroscopic synovetomy have similar recurrent rates in treating D-PVNS of the knee joint,while the latter has better postoperative range of motion and functional scores. Thus,arthroscopic synovectomy is a better option for the surgical treatment of D-PVNS.

Key words: pigmented villonodular synovitis, open synovectomy, arthroscopic synovectomy, knee

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