Intraoperative Patella Dimension Measurement in Asian Female Patients and Its Relevance in Patellar Resurfacing in TKA

Table 4

Comparison of width-height ratio and patella height between the group of patients suitable for oval-shape implants and round-shape implants (n = 156).

Variable	Oval, mean (SD) (n = 84)	Round, mean (SD) (n = 72)	Mean difference (95% CI)	t statistics (df)	value
Width-height ratio	1.40 (0.09)	1.20 (0.06)	0.20 (0.16, 0.23)	11.18 (76)	<0.001
Patella height (mm)	30.18 (2.51)	32.68 (2.56)	−2.50 (−3.64, −1.36)	−4.35 (76)	<0.001

Independent T-test.