Extracorporeal shock wave therapy (ESWT) versus local corticosteroid injection in treatment of lateral epicondylitis (tennis elbow) in athletes: clinical and ultrasonographic evaluation

Egyptian Rheumatology and Rehabilitation

Table 4 Comparison of VAS, PRTEE, and Quick DASH test through follow-up periods among CS injection group 1 (n = 15)

CS injection (15) Group 1		Mean	±SD	Before		2 w
CS injection (15) Group 1		Mean	±SD	Paired t1	p1	Paired t2	p2
VAS	Before	7.33	1.76
	2 w	4.33	1.76	9.27	< 0.001**
	4 w	1.6	1.6	12.68	< 0.001**	8.66	< 0.001**
	8 w	1.6	1.6	12.68	< 0.001**	8.66	< 0.001**
	12 w	3.07	7.05	2.38	0.032*	0.78	0.446
PRTEE	Before	78.2	11.79
	2 w	35.67	16.92	9.82	< 0.001**
	4 w	14.93	18.65	13.44	< 0.001**	8.18	< 0.001**
	8 w	11.73	12.7	19.07	< 0.001**	10.8	< 0.001**
	12 w	9.07	8.74	22.88	< 0.001**	10.06	< 0.001**
Quick DASH	Before	73.33	14.16
	2 w	35.6	16.96	8.46	< 0.001**
	4 w	13.33	16.83	12.68	< 0.001**	7.32	< 0.001**
	8 w	12.47	15.1	13.83	< 0.001**	7.98	< 0.001**
	12 w	9.73	9.21	17.76	< 0.001**	9.07	< 0.001**

Paired t test. VAS, visual analog scale; PRTEE, patient-rated tennis elbow evaluation; DASH, disabilities of the arm, shoulder, and hand; w, week; CS, corticosteroid injection