改良根治术 meaning in Chinese

modified radical operation

Modified radical mastectomy replaces radical mastectomy for breast cancer
乳腺癌改良根治术代替经典根治术
Comparative study of pcea and pcia on modified radical surgery for breast cancer
两种自控镇痛方法对乳腺癌改良根治术后镇痛效果观察
Results 5 of 21 cases underwent local excision , 9 cases were treated by wide local excisiom , 4 cases by simple mastectomy , 2 cases by modified radical mastectomy , and 1 case by subcutaneous mastectomy and axillary breast reconstruction
结果21例中行局部切除术5例，局部扩大切除术9例，单纯乳房切除术4例，改良根治术2例，皮下腺体切除术加乳房再造术1例。