Background
The purpose was to assess the contribution of tumor size to the prognosis of patients with gastric cancer.
Methods
Patient data were sourced from the Surveillance, Epidemiology, and End Results program (SEER) database. Cox proportional risk regression was performed to determine the prognostic role of tumor size. Kaplan-Meier curves were conducted to calculate survival curves. Consistency index (c-index) and subject exercise curve (ROC) were utilized to assess the predictive ability of each factor on the prognosis of gastric cancer.
Results
Tumor size is preferable to other widely accepted prognostic clinical features in forecasting the survival of patients with gastric cancer.
Conclusions
The discriminatory ability of tumor size at T1 stage is superior to many other clinical prognostic factors.
To evaluate the efficacy and safety of unilateral O-arm navigation-assisted percutaneous kyphoplasty (PKP) for the treatment of Kümmell's disease. Methods: The clinical data from patients with Kümmell's disease who attended our hospital between January 2015 and January 2019 were retrospectively analyzed. For each patient, the visual analog scale (VAS) score, anterior height of the vertebral body, sagittal kyphotic angle, Oswestry Disability Index (ODI), and postoperative cement leakage rate were recorded before and after surgery. Any surgical complications were documented. Results: The patients were followed up for 12 to 18 months. The average preoperative VAS score, kyphotic angle, and ODI decreased from 8.6 ± 0.5, 18.0 ± 3.7°, and 86.027%, respectively, to 2.2 ± 0.2, 5.8 ± 0.8°, and 26.720% three days after surgery. The anterior height of the vertebral body increased significantly from 14.5 ± 1.2 mm preoperatively to 19.4 ± 1.2 mm three days after surgery, and this improvement was maintained until the last follow-up. After surgery, bone cement leakage occurred in one vertebral body; this patient exhibited leakage to the intervertebral disc space, a complete pedicle and spinal canal structure, no clinical symptoms, and required no treatment.
Conclusion:This study shows that unilateral PKP assisted by O-arm navigation is safe and effective. Moreover, the observed improvements can be maintained over the longer term.
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