| 1.Fore word(1) BackgroundAt Euro-American national the colorectal carcinoma is taken bad that one of the tallest malignant tumor, our country colorectal carcinoma is lower than Euro-America nation, but the colorectal cancer is one of the most famili-r malignant rumors of the digest in our country. Compare our country the outbreak of age with the Euro-American nation obviously 12-18 years inadv-ce, average an age is 45 years old. Be taken bad the buoyant trend in recent years, in regard to our country, 60%-70% colorectal carcinoma is rectal cancer. Examine a patient because of the earlier period in rectal cancer more difficult, has been the inside the later period in clinical diagnoses, its reason is unknown for earlier period symptom to show or have no with the difference, did not cause the patient to value with the early in the diagnoses, did not make the necessary check. It is low what surgery of terminal rectal cancer, and the mostly terminal rectal cancer takes place to recrudescence and metastasis, 5 years survival rate is lower. In regard to the category of the surgery treatment rectal cancer that not is divided into two type: One is a permanent colostomy, include the Miles, PPE, WPE, Hartmann; The other one is to preserving the anus, include the Dixon, Parks, Bacon, through local excision via anus and through local excision via sacrum etc, the above surgery really make patients been recovered from illness, from acquire to survive over a long period of time, however, the current patient put forward the higher need for surgery, not only surviving without illness, but also having the better and living quantity. TME is a kind of type that treatment rectal cancer in recent years, TME make the patient survival rate to show is go up, recrudescence rate is descend, the living quantity of the postoperation is go up. A lot of scholars had confirmed what its possibility and applicationforegrounds in domestic and international, and is obviously for the midst-lower segment of rectal cancer.(2) Objectives and significanceAccording to TME is the best method in the midst-lower segment of rectal cancer, but to the mesorectum, characteristic distributing of lymph nodes for mesorectum, pelvic autonomic nerves, anterior sacral fascia, anter-or sacral venous plexus, lateral rectal ligaments and middle rectal artery, have not the united standard for TME. Presently, have not appear in which report a way what have not clinical and anatomical combinative research for TME in domestic and international. For TME has no united standard. Therefore, this research for with mesorectum for center, its circumambience of rectum, for treat rectal cancer which mesorectum for center, to explore its best level of structure, for clinical cure the rectal cancer, increase 5 years of the patient survival rate. To provide dependable theories foundation and basises gist whose over a long period of time making patient been placed in to have no the disease or have no tumor appearance, attaining the aim with total mesore-ctal excision can have an united of that standard provides the anatomical foundation theories needed.(3) Content of the investigationThis research mainly pays much attention to the following aspects: (1)With mesorectum for center, needing anatomy foundation and clinical application meanings proceeding series studying, look for to cure the rectal cancer anatomical foundation; (2)For adult specimens study a relation which pelvic autonomic nerves plexus, anterior sacral fascia, anterior sacral venous plexus, lateral rectal ligaments, middle rectal artery, obtaining the living quantity of the patient to is the first-hand data postoperation; (3)To determine relationship for total mesorectal excision in rectal cancer what recrudescence and diversion postoperation, lymph node involvement is the most important prognodt-ic when staging patients with rectal cancer. The scope of lymph nodes number variety can guide rectal cancer specimen of pathologic anatomy and guide the treatment of the patient in postoperation; ã„ass me... |
