Table 2.

Pre-surgery and 12-month post-surgery palmar and radial abduction angles (mean ± standard deviation)

	n	Palmar abduction		Radial abduction
		Preoperative (°)	Postoperative (°)	Preoperative (°)	Postoperative (°)
Arthrodesis	22	52.6 ± 8.3	41.6 ± 5.7	45.2 ± 5.2	39.2 ± 4.3
Arthroplasty	17	54.8 ± 7.2	58.9 ± 7.3	46.6 ± 7.2	52.6 ± 3.6
t			6.021		5.917
P			< 0.001		< 0.001

Values are shown as mean ± standard deviation