Research Article

Short-Segment Instrumentation with Fractured Vertebrae Augmentation by Screws and Bone Substitute for Thoracolumbar Unstable Burst Fractures

Table 1

Denis pain scale and work scale.

Pain scale
 P1: no pain
 P2: occasional pain not requiring medication
 P3: moderate pain requiring occasional medication
 P4: moderate to severe pain requiring frequent medication
 P5: constant incapacitating pain requiring chronic medication
Work scale
 W1: returned to previous employment
 W2: capable but did not return to previous employment
 W3: unable to return to previous employment and currently employed in a different full-time job
 W4: unable to return to previous employment and currently working part-time or frequently absent from work because of pain
 W5: completely disabled and unable to work

Source: Denis F et al. Clin Orthop Relat Res. 1984; 189 : 142-9. P = pain; W = work.