25 June 2015 : Clinical Research
A Clinical Investigation of Contralateral Neurological Symptom after Transforaminal Lumbar Interbody Fusion (TLIF)Jiayue BaiAB, Wei ZhangAE, Xin ZhangCE, Yapeng SunF, Wenyuan DingDG, Yong ShenCF
Med Sci Monit 2015; 21:1831-1838
BACKGROUND: The aim of this study was to analyze treatment outcomes and morbidity of contralateral neurological symptom in patients after TLIF surgery and to explore its possible causes.
MATERIAL AND METHODS: A retrospective study was conducted involving a total of 476 patients who underwent TILF from 2009 to 2012 in our hospital. These cases were divided into a symptomatic group (Group S) and a non-symptomatic group. The differences in contralateral foramen area and disc-height index(DHI) before and after surgery were compared between Group S and a random sample of 40 cases of non-symptomatic group patients (group N). In addition, according to whether the patient underwent second surgery, Group S patients were further divided into a transient neurologic symptoms group (Group T) and an operations exploration group (Group O). The time of symptom appearance, duration, and symptomatic severity (JOA VAS score) were compared between Group T and O.
RESULTS: Among the 476 patients, 18 had postoperative contralateral neurological symptoms; thus, the morbidity was 3.7815%. The indicators in Group S were lower than in Group N in the differences in contralateral foramen area and disc-height index(DHI) before and after surgery (p<0.05). Five patients (Group O) in Group S had second surgery because of invalid conservative treatment. The surgical exploration rate was 1.0504%. Compared with Group T, the symptoms of Group O patients appeared earlier, persisted longer, and were more serious (p<0.05).
CONCLUSIONS: Contralateral neurological symptom is a potential complication after TLIF, and its causes are diverse. Surgical explorations should be conducted early for those patients with the complication who present with obvious nerve damage.
Keywords: Pain, Postoperative - pathology, Time Factors, Tomography, X-Ray Computed
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