[Objective]To investigate the treatment and result of the meniscal cyst treatment by arthroscopic partial meniscectomy and decompression of the cyst.[Method]Nine patients who had suffered from meniscal cysts were treated by arthroscopic partial meniscectomy and decompression of the cyst in General Hospital of Yanzhou Coal Mine Group during the period from January 2002 to December 2005.There were 3 males and 6 females.The age ranged from 16 years to 54 years,with an average of(32.5?14.1) years.The duration was between 2 months and 2 years with an average of(13.4?6.8) months.One patient had medial meniscal cyst and eight patients had lateral meniscal cysts.There were 5 cysts in meniscal anterior horn,3 cysts in meniscal body and 1 cyst in meniscal posterior horn.Meniscal lesions adhering to cysts included 6 horizontal cleavages and 3 complex cleavages.Arthroscopy was performed to identify the hole through the meniscus to cyst,then the meniscal tear was partially resected taking great care to preserve the meniscal rim.The planer was used to decompress the cyst and excise the wall of the cyst and broaden the passage between the cyst and the main knee compartment.After operation,all patients were instructed to perform quadriceps exercises.The patients were followed up from 6 to 38 months with an average of(17.2?9.8) months.A conclusion was deduced from the pre-and post-operative Lysholm score of the patients.[Result]None of the 9 patients reoccored during follow-up.After operation,the symptoms of the knee pain and swelling disappeared,the range of the knee motion restored,poping and locking didn't reoccur,the fullness at the site of the cyst died away.The complication of the operation didn't occur such as infection,damage of the vascular and nerve and restriction of the knee motion.Lysholm score of the 9 patients showed a significant improvement from(70.2?7.8) pre-operation to(96.7?3.3) post-operation(t=9.3868,P=0.000).[Conclusion]Arthroscopic partial meniscectomy and cyst decompression has obvious advantages of preserving the function of the meniscus and decreasing the incidence of the knee osteoarthritis.It should be the primary treatment of the meniscal cyst owing to its low morbidity and satisfying results.

Objective To explore the association of sedentary life style with risk of metabolic syndrome (MS) and diabetes mellitus type 2 (T2DM).Methods A total of 6 016 local residents aged 18 years or older in Fujian province were recruited by multi-stage stratified cluster sampling method in 2010-2011.Data,including demographic information,physical activity and sedentary time were collected.Indices related to height,weight,waist circumference,blood pressure and blood lipid were determined while MS and T2DM were diagnosed by IDF (2005) and WHO (1999) criteria.Logistic regression was used to estimate the correlations between sedentary behavior and MS or T2DM.Results The prevalence rates of MS and T2DM were 19.0％ and 8.0％ respectively,in local residents aged 18 years or older,in Fujian province.The overall rate of sedentary behavior was 18.1％,with the mean sedentary time as 4.3 hours.Both data showed significantly differences (P＜0.001) among control group,MS without T2DM group,MS with T2DM group and T2DM without MS group.Compared with the group of sedentary time ＜2.0 h/d,1) the group with 2.0-3.5 h/d was significantly correlated with MT group (OR=1.44,95％ CI:1.03-2.03,P＜0.05),2) groups of 3.5-6.0 h/d and ≥6.0 h/d were significantly correlated with M,T,MT group,respectively (OR:1.49-1.76 and 1.28-1.58 respectively,95％ CI:1.19-2.45 and 1.02-2.23 respectively,P＜ 0.05),and 3) sedentary behavior was independently associated with an increased risk of MT group (OR=1.82,95％ CI:1.33-2.48,P＜0.01) and M group (OR=1.43,95％CI:1.14-1.78,P＜0.01),after the adjustment for factors as age,sex,cigarette smoking,alcohol drinking,BMI,education,occupation,sedentary behavior/sedentary time.Conclusion MS and T2DM were associated with sedentary lifestyle,but these findings should be confirmed through further longitudinal studies.