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Objective To discuss the significance of region Ⅵ lymph nodes dissection in treatment of patients with clinical cervical nodes negative(cN0)papillary thyroid carcinoma(PTC).Methods Clinical data of 38 cases of cN0 PTC treated with region Ⅵ lymph nodes dissection were retrospectively analyzed.The related literature was reviewed.The cervical nodes dissection scope and the key operation points in treatment of cN0 PTC were discussed.Results No permanent recurrent laryngeal nerve injury or parathyroid damage happened.14 cases(36.84％)had occult lymph node metastasis to region Ⅵ lymph nodes.After more than 5 years of follow-up,all the cases had excellent life quality.3 cases(7.89％)were found lymph node metastasis to lateral cervical region and they were given functional neck dissection.No recurrence or metastasis occurred to the 3 cases during more than 2 years of follow-up.Conclusion Region Ⅵ lymph node dissection in treatment of cN0 PTC is safe,reliable,and with less complications.
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Objective To compare the difference of therapeutic effect of surgical operation and non-operation for acute damnification of elbow ulnar collateral ligament in rabbits.Methods A total of 81 New Zealand rabbits were randomly and equally divided into three groups(27 rabbits per group),ie,Group A(control group):the ulnar collateral ligaments of right elbow joint were only enclosed;Group B:the ulnar collateral ligaments of right elbow joint were severed and sutured;Group C:the ulnar collateral ligaments of right elbow joint were severed,without suture.The biomechanics was detected at time intervals of 3 and 6 weeks.Results Twelve weeks after transplantation,the displacements of the ligaments in Groups B and C were(6.06±0.4)mm and(7.72±0.44)mm,with statistical difference(P ＜ 0.05).The displacement of the ligaments in Group A was(5.87±0.46)mm,which was similar to that of Group B(P＞0.05).The maximum loads of the ligaments of Groups B and C were(68.23±5.64)N and (42.45±3.66)N respectively,with statistical difference(P＜0.05).The maximum load of the ligaments of Group A was(72.86±2.99)N,which was similar to that of Group B(P ＞ 0.05).The rigidities of the ligaments of Groups B and C were(11.33±1.52)N/mm and(5.52±0.67)N/mm respectively,with significant difference(P ＜ 0.05).The rigidities of the ligaments of Group A was(12.49±1.44)N/mm,which was similar to that of Group B(P ＞ 0.05).The power consumption of the ligaments of Groups B and C were(0.206±0.017)J and(0.163±0.013)J respectively,with statistical difference(P＜0.05).The power consumption of the ligaments of Group A was(0.213±0.010)J,which was similar to that of Group B(P＞0.05).Conclusion Surgical operation is more effective than the non-operation in dealing with acute damnification of the ulnar collateral ligaments of elbow ulnar collateral ligament in rabbits.
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Operation is one of the important ways in breast cancer treatment.With the deep basic medical research,new theory,new concept and new technology improve the operation therapy in breast cancer in more scientific and rational way Breast-conserving therapy and sentinel lymph node bipsy (SLNB) are applied,and the neoadjuvant chemotherapy make breast-conserving therapy more feasible.The progress of operation therapy in breast cancer make it critical to emphasize the individualized treatment in breast cancer.
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Objective To explore the guiding value for operation of MRI in diagnosing the cranial base chordoma. Methods MRI features of 15 cases with cranial base chordoma, which were proved by biopsy and surgery, were retrospectively analyzed. Results Most of the cranial base chordoma were located in the middle area of the skull base such as clivus and sellar region and always invaded extensively the nerves and major intracranial vessels of skull base. All tumors were hypointense on T_2WI and enhanced more markedly, but steady heterogeneous. Conclusion MRI examination is of great clinical signifiance in delineating the location, size and extension of cranial base chordoma, and showed anatomic relation with surrounding structures such as the major intracranial vessels of skull base, which is very important in surgical planning.