Dissatisfaction Risk Factors of Patients after Laminectomy for Thoracic Ossification of Ligamentum Flavum: A Retrospective Cohort Study of Different Follow-Up Periods

Figure 3

A 62-year-old male patient of the dissatisfied group. A 62-year-old male patient (a, b, and c) of the dissatisfied group Ossification of the ligamentum flavum at the T10–11 intervertebral disc level. The main preoperative symptoms of the patients were numbness, weakness of both lower limbs, and difficulty in walking with urination disorder for more than 2 years. Physical examination showed a sense of banding in the chest and abdomen, knee hyperreflexia, and Babinski sign (+). He was performed with laminectomy without related complications. At 6-month and 1-year follow-up, the symptoms of significantly limited physical activity were relieved. However, the improvement of urination disorder was not obvious, which had been troubling the patients after operation and seriously affected the quality of life of the patients. At the last follow-up, her JOA scores improved from 3 before operation to 7 after operation.