Question: What is the purpose of the Tokuhashi scoring system?

Context:
 Those referring to representative scoring systems about predicting the survival of patients with metastatic spine tumors were used. The significance and limits of these scoring systems, and the future perspectives were described. Tokuhashi score, Tomita score, Baur score, Linden score, Rades score, and Katagiri score were introduced. 
BACKGROUND: We sought to identify preoperative factors significantly correlated with survival. We also aimed to evaluate the validity of the prognostic scores in the Tomita and Tokuhashi systems and discuss several aspects to improve the predictive accuracy of these systems. 
Accuracy of the revised Tokuhashi score in predicting survival in patients with metastatic spinal cord compression (MSCC).
PURPOSE: The revised Tokuhashi score has been widely used to evaluate indications for surgery and predict survival in patients with metastatic spinal disease.
CONCLUSION: We would conclude that although the predictive value of the Tokuhashi score in terms of survival time is at best modest (66 %), the fact that there were statistically significant differences in survival between the groups looked at in this paper indicates that the scoring system, and the components which it consists of, are important in the evaluation of these patients when considering surgery.
Tokuhashi Scoring System has limited applicability in the majority of patients with spinal cord compression secondary to vertebral metastasis.
The Tokuhashi Scoring System (TSS) is a widely used prognostic tool. 
Predictive value of Tokuhashi scoring systems in spinal metastases, focusing on various primary tumor groups: evaluation of 448 patients in the Aarhus spinal metastases database.
OBJECTIVE: To determine the specific predictive value of the Tokuhashi scoring system (T12) and its revised version (T15) in spinal metastases of various primary tumors.
Is Tokuhashi score suitable for evaluation of life expectancy before surgery in Iranian patients with spinal metastases?
BACKGROUND: One of the most important selection criteria for spinal metastases surgery is life expectancy and the most important system for this prediction has been proposed by Tokuhashi. The aim of this study was to evaluate predictive value of the Tokuhashi score for life expectancy in Iranian patients with spinal metastases one year after diagnosis.
CONCLUSIONS: Present study showed that the Tokuhashi revised scoring system may be practicable and highly predictive preoperative scoring system for patients with spinal metastases in Iran.
This study was to evaluate Tomita and Tokuhashi scoring systems in selecting surgical procedure and predicting prognosis of extradural spinal metastases.
Analysis of the predictive role and new proposal for surgical strategies based on the modified Tomita and Tokuhashi scoring systems for spinal metastasis.
We compared the Tokuhashi and Tomita scoring systems, two commonly used scoring systems for prognosis in spinal metastases.
[The predictive value of the Tokuhashi revised scoring system for the survival time of patients with spinal metastases].
To evaluate the predictive value of the Tokuhashi revised scoring system for the life expectancy of patients with spinal metastases.
To determine the specific predictive value of the Tokuhashi scoring system (T12) and its revised version (T15) in spinal metastases of various primary tumors.
To evaluate the predictive values of Tokuhashi score, revised Tokuhashi score and Tomita score systems for life expectancy and treatment options in patients with spinal metastasis.
Tokuhashi Scoring System has limited applicability in the majority of patients with spinal cord compression secondary to vertebral metastasis
[The predictive value of the Tokuhashi revised scoring system for the survival time of patients with spinal metastases]
To evaluate the predictive value of the Tokuhashi revised scoring system for the life expectancy of patients with spinal metastases
We compared the Tokuhashi and Tomita scoring systems, two commonly used scoring systems for prognosis in spinal metastases
PURPOSE: The revised Tokuhashi score has been widely used to evaluate indications for surgery and predict survival in patients with metastatic spinal disease. 

Answer: Tokuhashi scoring system was developed to predict life expectancy of patients with spinal metastases. The revised Tokuhashi score has been widely used to evaluate indications for surgery and predict survival in patients with metastatic spinal disease.