Degree Deformity	Evaluated statistical indicators	Assement of the value of the IMA angle before operative treatment		IMA (before operative treatment)	Assessment of the value of the IMA angle after operative treatment		IMA (after operative treatment)
Degree Deformity	Evaluated statistical indicators	Dg of IMA angle k_d = 0.4125	Gg of IMA angle k_g = 0.4323	IMA (before operative treatment)	Dg of IMA angle k_d = 0.5872	Gg of IMA angle k_g = 0.6614	IMA (after operative treatment)
Mild deformity	N	71	71	71	71	71	71
	Mean (Me)	9.7489	10.2169	10.46	5.1277	5.7756	6.52
	Std. Deviation (SD)	1.61612	1.69369	0.939	4.31840	4.86408	2.568
	Std. Error of Mean (SE)	0.19180	0.20100	0.111	0.51250	0.57726	0.305
	Min IMA	6.19	6.48	9	−10.57	−11.91	−6
	Max IMA	11.96	12.54	12	15.27	17.20	13
Moderate deformity	N	114	114	114	114	114	114
	Mean (Me)	14.0648	14.7399	15.11	7.1237	8.0238	7.21
	Std. Deviation (SD)	1.16927	1.22539	1.713	4.30476	4.84872	2.184
	Std. Error of Mean (SE)	0.10951	0.11477	0.160	0.40318	0.45412	0.205
	Min IMA	12.38	12.97	13	−2.94	−3.31	0
	Max IMA	16.09	16.86	19	20.55	23.15	15
Severe deformity	N	11	11	11	11	11	11
	Mean (Me)	19.7625	20.7111	22.18	10.9433	12.3261	8.82
	Std. Deviation (SD)	2.96573	3.10808	2.822	8.52663	9.60408	3.737
	Std. Error of Mean (SE)	0.89420	0.93712	0.851	2.57088	2.89574	1.127
	Min IMA	16.50	17.29	20	4.11	4.63	4
	Max IMA	25.16	26.37	28	29.36	33.07	16
Total	N	196	196	196	196	196	196
	Mean (Me)	12.8212	13.4366	13.83	6.6150	7.4509	7.05
	Std. Deviation (SD)	3.03968	3.18558	3.383	4.81401	5.42232	2.478
	Std. Error of Mean (SE)	0.21712	0.22754	0.242	0.34386	0.38731	0.177
	Min. IMA	6.19	6.48	9	−10.57	−11.91	−6
	Max. IMA	25.16	26.37	28	29.36	33.07	16