A comparison of interferential current efficacy in elderly intervertebral disc degeneration patients with or without sarcopenia: a retrospective study

Table 1 Comparison and correlations in SCSA (mm2) and DFF (%) for paravertebral muscles of different Pfirrmann gradings (x ± s)

Pfirrmann grading	Number of discs (240)	Paravertebral muscle (IWS before)		Paravertebral muscle (IWS after)		Paravertebral muscle (IWOS before)		Paravertebral muscle (IWOS after)
Pfirrmann grading	Number of discs (240)	SCAS	DFF	SCAS	DFF	SCAS	DFF	SCAS	DFF
I	14	60.42 ± 14.69	9.16 ± 2.41	59.05 ± 18.41	10.00 ± 2.25	67.44 ± 12.58	11.46 ± 1.76	66.73 ± 17.26	10.65 ± 1.95
II	78	56.42 ± 15.28	12.41 ± 2.77	56.10 ± 17.78	11.50 ± 2.45	61.57 ± 14.93	12.17 ± 1.91	63.78 ± 15.77	12.23 ± 2.25
III	101	52.53 ± 13.91	14.48 ± 2.36	54.69 ± 15.05	14.74 ± 2.08	59.51 ± 15.96	13.32 ± 1.87	64.97 ± 13.75	12.92 ± 1.83
IV	31	48.86 ± 12.20	15.17 ± 1.79	50.01 ± 12.43	14.56 ± 2.30	59.89 ± 14.43	14.06 ± 1.61	53.66 ± 10.42	13.96 ± 1.88
V	16	48.83 ± 12.83	14.04 ± 2.51	46.30 ± 14.49	14.10 ± 2.73	55.15 ± 14.67	14.40 ± 1.91	51.54 ± 12.13	13.96 ± 2.09
r		-0.216	0.430	-0.152	0.499	-0.137	0.435	-0.236	0.346
p		0.001	0.000	0.019	0.000	0.034	0.000	0.000	0.000

SCSA Standard cross-sectional area, DFF Degree of fatty infiltration, IFC Interferential current, IWS Intervertebral disc degeneration patients with sarcopenia, IWOS Intervertebral disc degeneration patients without sarcopenia
^*P < 0.05, statistically significant differences. Before IFC stimulation: r = -0.216, r = 0.430; r = -0.137, r = 0.435; After IFC stimulation: r = -0.152, r = 0.499; r = -0.236, r = 0.346

ISSN: 1471-2474