AIM:To investigate the effects of preoperative other diseases on the complications of senile cervical vertebral operation in perioperative period.METHODS:800 senile cervical vertebral cases were divided into two group: group A included the cases without other comorbidities,and group B included the cases with hypertension, diabetes mellitus,coronary heart disease(CHD) or chronic obstructive pulmonary disease(COPD).We retrospectively analyzed the changes of BP,oxygen saturation(SaO2) and the incidence of cardiac arrhythmia during operation of group A and B.RESULTS:In perioperative period, the incidence of BP reduction or rising and cardiac arrhythmia in group B was more than that of group A.Incidence of SaO2 decreasing increases apparently in each stage and incidence of cerebrovascular, pulmonary complications and asphyxia led by incision bleeding increases apparently.CONCLUSION:The hypertension, CHD, diabetes mellitus and COPD were the main reasons of complications of the heart,the cerebral vessels and the lung, kidney and the incision bleeding in perioperative period of senile patients.

Objective To investigate the effect of cemented artificial hip replacement in the treatment of senile femoral neck fracture.Method Follow up the 18 patients with senile femoral neck fracture who received bony cemented artificial hip replacement during January 1999 to September 2001.Mean following- up duration:15.7 months(3～ 23).Result Harris score:15 cases got excellent result,3 cases got good result,none got fair result.Total X ray plain film:Position of prothesis was normal with no loosing,heterotopic ossification or dislocation. Conclusion (1)Variant cemented artificial hip replacements all have satisfying effect in near future.(2)It is feasible for patients with poor economic condition to choose native prothesis in arthroplasty.(3)Di- polar artificial thigh bone replacement is a better choice for weak patient with great age.