Factors influencing outcomes after medial hamstring lengthening with semitendinosus transfer in patients with cerebral palsy

Sung, Ki Hyuk; Lee, Jaebong; Chung, Chin Youb; Lee, Kyoung Min; Cho, Byung Chae; Moon, Seung Jun; Kim, Jaeyoung; Park, Moon Seok

doi:10.1186/s12984-017-0296-0

Journal of NeuroEngineering and Rehabilitation

Table 5 Previous studies investigating the outcomes after distal hamstring lengthening

From: Factors influencing outcomes after medial hamstring lengthening with semitendinosus transfer in patients with cerebral palsy

Study	No. of subject	Follow-up duration (years)	Knee flexion at IC (°)			Minimum knee flexion in stance (°)			GGI or GDI^*
Study	No. of subject	Follow-up duration (years)	pre	post	p-value	pre	post	p-value	pre	post	p-value
Dreher et al. [9]	30 (medial hamstring lengthening)	8.1 ± 1.8	36 ± 17	16 ± 12 (1Y)	<0.05	17 ± 20	0 ± 14 (1Y)	<0.05
				22 ± 11 (2-4Y)	<0.05		9 ± 12 (2-4Y)	<0.05
				23 ± 10 (6-12Y)	<0.05		12 ± 12 (6-12Y)	>0.05
	9 (medial and lateral hamstring lengthening)		45 ± 15	19 ± 8 (1Y)	<0.05	35 ± 23	7 ± 12 (1Y)	<0.05
				20 ± 12 (2-4Y)	<0.05		12 ± 16 (2-4Y)	<0.05
				23 ± 10 (6-12Y)	<0.05		12 ± 16 (6-12Y)	<0.05
Haumont et al. [11]	97 (185 limbs)	10.1	39.2 ± 13.4	26.6 ± 12.6	<0.01	15.6 ± 16.0	12.5 ± 14.8	>0.05	54.5 ± 15.0^*	67.8 ± 10.4^*	<0.01
Feng et al. [10]	20 (hamstring lengthening)	1.1 ± 0.2				31.7 ± 11.5	23.2 ± 11.6	<0.05
Feng et al. [10]	18 (hamstring transfer + lengthening)	1.1 ± 0.3				32.6 ± 11.0	18.9 ± 9.8	<0.05
Mattos et al. [12]	18 (hamstring lengthening group)	4.3 ± 0.9				22.4 ± 13.3	9.5 ± 10.4 (1Y)	<0.05
	18 (hamstring lengthening group)	4.3 ± 0.9				22.4 ± 13.3	10.8 ± 12.1 (final)	<0.05
	32 (hamstring transfer + lengthening)	4.5 ± 0.9				24.9 ± 11.9	7.2 ± 10.4 (1Y)	<0.05
	32 (hamstring transfer + lengthening)	4.5 ± 0.9				24.9 ± 11.9	8.3 ± 12.2 (final)	<0.05
Sung et al. [13]	29	11.8 ± 1.1	31.1 ± 12.7	26.0 ± 7.6 (1Y)	0.065	7.6 ± 13.8	2.7 ± 9.8 (1Y)	0.110	69.4 ± 11.3^*	77.9 ± 9.5^* (1Y)	0.003
Sung et al. [13]	29	11.8 ± 1.1	31.1 ± 12.7	23.6 ± 8.1 (10Y)	0.038	7.6 ± 13.8	7.3 ± 10.6 (10Y)	1.000	69.4 ± 11.3^*	82.2 ± 8.9^* (10Y)	<0.001
Ounpuu et al. [14]	22	11 ± 2	35 ± 9	23 ± 8 (1Y)	<0.001	11 ± 10	7 ± 11	>0.05
Ounpuu et al. [14]	22	11 ± 2	35 ± 9	24 ± 9	<0.001	11 ± 10	10 ± 11	>0.05
Park et al. [8]	8 (16 limbs, DHL)	1.4 ± 0.8	32.9 ± 11.8	22.3 ± 8.7	0.001
Park et al. [8]	20 (40 limbs, DHL + RFT)	1.1 ± 0.3	30.5 ± 11.7	24.9 ± 9.7	0.002
Laracca et al. [15]	15 (right)	2.3	44.5 ± 14.2	31.7 ± 14.9	0.014	34.2 ± 19.3	24.3 ± 16.3	0.144	561 ± 194	394 ± 163	0.008
Laracca et al. [15]	15 (left)	2.3	41.2 ± 14.4	31.9 ± 12.0	0.054	30.8 ± 17.6	23.3 ± 15.9	0.159
Aiona et al. [16]	28(DHL)	1.4 ± 0.5				22.8 ± 7.1	6.7 ± 8.2	<0.05
Aiona et al. [16]	57 (DHL + RFT)	1.2 ± 0.5				27.1 ± 14.7	9.8 ± 11.5	<0.05
Saraph et al. [17]	25	3.3 (3.0–3.9)	29.8	24.1	<0.001	15.2	8.2	0.006
Chang et al. [2]	61	1.2 ± 0.4	38.3	27.4	<0.001
Metaxiotis et al. [7]	20	3.1 (2.0–4.5)	41.5	19.1	<0.001
Adolfsen et al. [6]	31	1.9 (0.7–6.4)	31	21	<0.001	22^a	16^a	<0.001
Gough et al. [4]	13	4.2 (3.6–4.8)				31	17.7(1Y)	<0.001	1508	629 (1Y)	0.002
							22 (2Y)			794 (2Y)
							22 (2Y)			648 (3Y)
							20 (3Y)			652 (4Y)
							23 (4Y)			652 (4Y)
Ganotti et al. [18]	11	13 (11–15)	34	24 (1Y)	<0.02				335	198 (1Y)	<0.02
Ganotti et al. [18]	11	13 (11–15)	34	26 (13Y)	<0.02				335	294 (13Y)	<0.02
Current study	314 (594 limbs)	2.7 ± 2.9 (1.0–14.7)	33.6 ± 11.8	24.6 ± 9.9	<0.001	11.3 ± 14.1	6.5 ± 10.8	<0.001	69.9 ± 10.2^*	79.8 ± 9.6^*	<0.001

GGI gillette gait index, A higher GGI indicates greater deviation from a normal unimpaired gait, GDI gait deviation index, A GDI score of 100 and above indicates nonpathological gait
^aPresent mean knee flexion in stance (°)

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ISSN: 1743-0003

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