Table 1.

The scoring system for evaluation of sacral nerve function after sacrectomy

Function domain		3	2	1	0
Motor function and sensation of lower limbs	Pain	None	Mild pain, nonnarcotic analgesic use	Moderate pain, intermittent narcotic analgesic use	Intractable pain, continuous narcotic use
	Motor	Normal	Mild deficit not requiring assistance of external support for walking	Deficits requiring the assistance of external support (cane, crutch, etc) for walking	Deficits requiring wheelchair for ambulation/bedridden
	Perineal Sensation	Normal	Mild numbness or hyperesthesia not affecting daily life	Numbness or hyperesthesia affecting daily life	Complete loss of perineal sensation
Urination and uriesthesia	Dysuria	Normal	Mild dysuria not requiring manual exertion of abdominal pressure or medical interventions	Urinary retention requiring manual exertion of abdominal pressure or occasional catheterization*	Urinary retention requiring indwelling catheterization or regular intermittent catheterization/total incontinence/cystostomy
	Bladder incontinence	Normal	Occasional urine leakage not requiring the regular use of diapers	Frequent urine leakage requiring regular use of diapers	Total incontinence/indwelling catheterization/cystostomy
	Bladder sensation	Normal	Slightly changed but still exist bladder feelings when micturating	Partial loss of feelings of stimulus to micturate	Total loss of the feelings of stimulus to micturate/indwelling catheterization/cystostomy
Defecation and rectal sensation	Constipation	Normal	Mild defecation difficulties not requiring medical intervention	Moderate defecation difficulties requiring regular use of enemas or laxatives	Defecation difficulties requiring manual assistance to evacuate the feces/total incontinence/colostomy
	Bowel incontinence	Normal	Occasional incontinence not requiring the regular use of diapers	Frequent incontinence requiring regular use of diapers	Total incontinence/colostomy
	Bowel sensation	Normal	Blunted but still exist rectal sensation when voiding	Partial loss of feelings of stimulus to defecate	Total loss of the feelings of stimulus to defecate/colostomy

* Less than once a week.