Comparison of prevertebral soft tissue swelling and dysphagia between Zero-p and traditional cage and titanium plate for anterior cervical discectomy with fusion / 局解手术学杂志

ABSTRACT

Objective To explore the relationship among the prevertebral soft tissue swelling and dysphagia rate after anterior cervical diskectomy and fusion(ACDF),and to investigate the prevertebral soft tissue swelling and dysphagia rate after Zero-p or traditionaI cage and titanium plate for one-level lesion of cervical myelopathy.Methods The clinical data of 54 patients with one-level lesion (C5/6) of cervical myelopathy who undelwent anterior cenrical discectomy and fusion by Zero-p (n =25) or traditional cage and titanium plate (n =29) were analyzed.The postoperative prevertebral soft tissue swelling was measured by lateral radiographs.Patients were divided into the swelling group (n =24) and the non-swelling group(n =30) based on the degree of prevertebral soft tissue swelling and the incidences of dysphagia were analyzed.Patients were divided into the Zero-p group (n =25)and the Cage group (n =29) based on surgical treatment,the postoperative prevertebral soft tissue swelling and dysphagia rate were compared.Results The rate of dysphagia in swelling group was 45.8％,which was higher than 13.3％ in non-swelling group,the difference was significant(P ＜0.05).The postoperative prevertebral soft tissue swelling was 6.22 mm averagely after Zreo-p,which was less than that after traditional cage and titanium plate for anterior cervical discectomy with fusion(9.25 mm),the difference was significant (P ＜ 0.05).The incidence of dysphagia in Zero-p group was 12％,which was lower than 41.4％ in Cage group,and the difference was statistically significant (P ＜ 0.05).Conclusion It is a clinical significance to evaluate the degree of prevertebral soft tissue swelling by cervical lateral X-ray after ACDF,when the degree of prevertebral soft tissue swelling is greater,the incidence of complications such as dysphagia is higher.In addition,The Zero-p for the treatment of single one-level lesion of cervical myelopathy(C5/6) has a lower degree of prevertebral soft tissue swelling and dysphagia rate than the traditional Cage and titanium plate fusion.