Table 3.

Nonarthritic hip scores for hips not resulting in THA

Outerbridge grade at surgery	Average ± SD	Median	Range
Acetabular grade
Normal (n = 43)	90.2 ± 9.8	94	60–100
I (n = 8)	87.3 ± 12.2	81	56–100
II (n = 8)	73.1 ± 14.5	73	56–95
III (n = 0)	—	—	—
IV (n = 3)	83.8 ± 14.7	80	71–100
Femoral grade
Normal (n = 44)	88.2 ± 11.8	94	56–100
I (n = 12)	85.1 ± 14.5	81	59–100
II (n = 5)	85.5 ± 11.5	73	69–95
III (n = 1)	—	84	—
IV (n = 0)	—	—	—
Total (n = 62)	87.3 ± 12.1	91	56–100