The Analysis Of The Curative Effect Of Anterior Decompresion To Treat Cervical Spondylotic Myelopothy

Objective: To observe the surgical outcome for patients with cervical spondylotic myelopathy (CSM) treated by anterior decompression and study the relationship between severity of preoperative neurological deficit,duration of symptoms with the surgical outcome.Method: Sixty-three patients with cervical spondylotic myelopathy (CSM) treated by anterior cervical corpectomy and fusion with iliac crest autograft or titanium mesh at Fujian provincial hospital were included in a retrospectively studied during the period of 2007.12-2009.12. All patients were evaluated pre-and postoperatively using the Japanese Orthopedics Association Scale (JOA) to study the relationship between severity of preoperative neurological deficit,duration of symptoms with the surgical outcome.Results: All patients were followed for an average of 17.6months. The mean preoperative JOA score of all patients was 8.51, the postoperative was 14.2. Mean improvement ratio was 61%. Pared t-test for dependent samples was used to estimate the difference, there was statistcs differences of pre-and postoperatively JOA scores (t= -12.863,P=0.000).The surgical outcome between the groups of different severity of preoperative neurological deficit had no statistics differences.(F=1.309,P=0.294),while the surgical outcome between the groups of different had statistics differences(t=7.633,P=0.000).Conclusion: 1,Anterior cervical corpectomy and fusion for CSM is an effective surgical treatment of patients with CSM.2,The outcome of the surgical treatment has relationship with duration of symptoms. The patients with CSM should receive operation at early time to achieve a satisfactory outcome.3,The severity of preoperative neurological deficit has no relationship with the outcome. An satisfactory surgical outcome can be obtained even for those patients with low scores of JOA.