Ultrasound-guided platelet-rich plasma injection improves pain, function and symmetry in lumbar myofascial pain syndrome: A case report

Table 1 Ultrasound-guided injection of platelet-rich plasma improved the pain and physical function of individuals with myofascial pain syndrome after muscle injury

	Baseline	24 hours	1 month	3 months	6 months
VAS	7	6	2	2	2
McGill	15	4	2	2	2
RMDQ	15	8	8	8	8
ODI	54	54	30	30	15

VAS: Visual analog scale; McGill: McGill Pain Questionnaire; NDI: Neck Disability Index; RMDQ: Roland Morris Disability Questionnaire; ODI: Oswestry Disability Index.

Table 2 Ultrasound-guided injection of platelet-rich plasma improved the quality of life in individuals with myofascial pain syndrome using short form 36 questionnaire

	Baseline	1 month	3 months	6 months
PF	55	70	70	85
RP	50	50	75	75
BP	57	69	84	84
GH	35	30	30	50
VT	100	110	110	110
SF	50	75	75	75
RE	66.7	33.3	66.7	66.7
MH	48	48	68	68

PF: Physical function; RP: Role-physical; BP: Bodily pain; GH: General health; VT: Vitality; SF: Social functioning; RE: Role-emotional; MH: Mental health.

Table 3 After ultrasound guided injection of platelet-rich plasma, the surface electromyography data of bilateral quadratus lumborum muscles showed that the bilateral muscle function gradually regained symmetry

	Baseline	1 month	3 months	6 months
Left Aemg	28.74	23.17	24.59	25.71
Left iemg	83.64 ± 7.51	59.49 ± 4.63	61.12 ± 8.12	73.73 ± 11.41
Left RMS	35.77 ± 1.88	28.96 ± 2.50	30.79 ± 0.97	32.01 ± 1.30
Left MF	63.60	87.29	80.06	68.52
Right Aemg	40.76	27.82	26.95	26.91
Right iemg	112.47 ± 8.39	68.87 ± 6.27	69.37 ± 6.69	75.48 ± 9.79
Right RMS	51.36 ± 2.94	34.86 ± 1.63	33.84 ± 1.16	33.53 ± 1.03
Right MF	88.20	85.17	83.20	70.48

Aemg: Average electromyographic; iemg: Integral electromyography; RMS: Root mean square electromyography; MF: Median frequency.