| ObjectiveTo investigate the efficacy of arthroscopic synovectomy on refractory knee arthritis complicated with popliteal cyst.MethodsA retrospective analysis of 153 patients(RA=95,SpA=58]with refractory knee arthritis,underwent knee arthroscopic synovectomy in our hospital from 2010 to 2017,was performed.Among them,20 patients(RA=16,SpA=4)complicated with popliteal cyst.We compared the changes in inflammation makers,disease activity score,imaging manifestations,symptoms,the rate and the grading of popliteal cyst before and after the operation to evaluate the efficacy of knee arthroscopic synovectomy.Resultsinflammation markers such as erythrocyte sedimentation rate(ESR)[58(17-79)mm/lh 19(9-30)mm/lh,P<0.001],C reactive protein(CRP)[3.72(0.92-8.14)mg/L vs.0.85(0.10-3.08)mg/L,P<0.001],Rheumatoid Factor[64.6(20.2-193.3)vs.20.5(10.0-3.08),P<0.001],DAS28 score(4.67 ± 1.25 2.81 ± 1.23,P<0.001),knee joint discomfort score[5(4-6)vs,2(1-3),P<0.001]and the amount of knee joint effusion by ultrasound scanning(P<0.05)in 95 RA patients were significantly decreased compared to those before the operation;Inflammation markers such as ESR[27(12-54)mm/lh 20(16-28)mm/1h,P<0.001],CRP[3.27(1.06-3.03)mg/L 1.41(0.34-3.03)mg/L,P<0.001],knee discomfort score[2(0-5)vs.1(0-3),P<0.001)],back pain visual analogue score(VAS)[5(4-5)vs.2(1-3),P<0.001)],the amount of knee joint effusion by ultrasound scanning(P<0.001)in 58 SpA patients were significantly lower than those before the operation;the rate(16.84%vs.6.32%,P=0.023)and grading(P=0.007)of popliteal cyst in RA were decreased after the operation;No statistically difference was observed in the rate(6.90%vs.5.17%,P=0.697)of popliteal cyst in SpA,but the grading were all decreased in 4 patients.ConclusionThis study provides evidence that knee arthroscopic synovectomy has a good effect for refractory knee arthritis,which can reduce disease activity,improve joint symptoms and decrease the grading of popliteal cyst. |
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