Table 1.

Demerit scoring system of Saito⁸

I. Subjective evaluation
Excellent	No pain, no disability, no limitation of motion	0
Good	Occasional pain, no disability, slight limitation of motion	2
Fair	Occasional pain, no particular disability if careful, some limitation of motion, feeling of weakness in wrist, activities slightly restricted	4
Poor	Pain, disability, limitation of motion, Activities markedly restricted	6
II. Objective evaluation
a. Residual deformity
Ulnar variance	0 ± 2 mm 1	1
Palmar tilt	11 ± 10 degrees	1
Radial tilt	23 ± 10 degrees	1
b. Range of movements
Dorsiflexion	<45 degree	1
Palmar flexion	<30 degree	1
Ulnar flexion	<15 degree	1
Radial flexion	<15 degree	1
Supination	<50 degree	1
Pronation	<50 degree	1
c. Grip power
Dominant	<½ Power of the opposite hand	1
	<2/3 Power of the opposite hand	2
Non-dominant	<½ Power of the opposite hand	1
	<2/3 Power of the opposite hand	2
d. Arthritic changes
None		0
Minimal	Irregularity of articular surface sharpening of articular margin	1
Moderate	Narrowed joint space, osteophytes	2
Severe	Marked osteophytes, ankylosis	3
e. Complications
Nerve complication		1-2
Stiff fingers		1-2
Ruptures tendons		1-2