Table 3.

Comparison of Detailed Vibration Sensation Status at 3 and 6 Months After Surgery in the ENSMSLS Group versus the NSM Group

	NSM (Mean ± SD)	ENSMSLS (Mean ± SD)	Difference	Paired t Test	P
Surgical shake
3 Months postop	43.96 ± 98	26.66 ± 10.27	17.30 ± 12.24	7.74	<.0001
6 Months postop		24.89 ± 10.69	19.07 ± 11.87	8.80	<.0001
Normal shake
3 Months postop	5.58 ± 4.09	6.93 ± 6.34	−1.36 ± 7.76	−0.96	.3468
6 Months postop		6.77 ± 5.95	−1.19 ± 7.35	−0.89	.3831

Shake: force testing in the matched NSM group patients was conducted only once, on the day when the patient was called back for re-examination. Surgical shake, the vibration sensation was tested in the surgical breast at the test points. Normal shake, the vibration sensation was tested in the normal, nonsurgical breast at the test points.