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OBJECTIVE：To optim ize ethanol extraction technology of Mongolian medicine Naru- 3. METHODS ：The L 9（34） orthogonal design was used to optimize ethanol extraction technology of Mongolian medicine Naru- 3 with solid-liquid ratio ，ethanol volume fraction and extraction time as factors ，using comprehensive scores for the contents of benzoylaconitine ，benzoylneoaconitine， benzoylhypoaconitine，aconitine，neoaconitine，hypoaconitine，piperine and gallic acid as indexes. RESULTS ：The optimal ethanol extraction technology was that solid-liquid ratio of 1∶10（g/mL），ethanol volume fraction of 75％，extracting for 1.5 h. After 3 times of validation tests ，average contents of above 8 components in ethanol extract from Naru- 3 were 1.69，1.48，14.69，0.28， 0.05，0.08，26.01，17.33 mg/g（RSDs were 0-4.96％，n＝3），respectively. Average comprehensive score was 19.03（RSD＝1.42％， n＝3）. CONCLUSIONS ：The optimal ethanol extraction technology of Mongolian medicine Naru- 3 is stable and feasible.
RESUMO
Objective To explore the importance and methods of retaining articularis during pri- mary total hip arthroplasty(THA)and reconstruct soft tissue balance of hip joint after THA.Methods From February 2003 to August 2005,41 eases(43 hips)including 19 males and 22 females at age of 46- 80 years(mean 66.5 years)were treated with THA with retained capsule(Group R)and other 42 cases (44 hips)including 20 males and 22 females at age of 43-80 years(mean 64.3 years)with standard THA (Group S).Preoperative diagnosis found femoral neck fractures(GardenⅢⅣ)in 13 cases(13 hips)in Group R and 14(14 hips)in Group S;acetabular dysplasia(CroweⅢ)in 9(9 hips)in Group R and 8 (hips)in Group S;Osteoarthritis in 6(8 hips)in Group R and 7(8 hips)in Group S;and femoral head osteonecrosis(FicatⅢⅣ)in 13(13 hips)in Group R and 13(14 hips)in Group S.There were 13 hips of cement prostheses in Group R and 11 in Group S,8 cementless prostheses in Group R and 8 in Group S, 22 cement and cementless prostheses in Group R and 23 in Group S.Gibson's approach was used in both groups.Group R used the method of retaining capsule and little supination muscles during the operation to reconstruct responsibly soft tissue balancing of postoperation for THA.For comparison,Group S used the method of standard which resected a lots of capsule and didn't reconstruct it.The comparative items between Group R and Group S included incisional length,operative time,operative bleeding,drainage transfusion, infection,dislocation,postoperation standing,postoperation walking and Harris's score.Results All cases in Group R and Group S were followed for 6-22 months(mean 16.5 months in Group R and 16.7 months in Group S).There was significantly statistical difference upon interoperative and postoperative data between Group R and Group S.The result of Group R was significantly better than that of GS.Conclu- sion Retaining articularis during primary THA can minimize operative trauma,reconstruct soft tissue bal- ance and augment hip stability to get postoperative functional recovery.