Table 9

Focused ESWT compared with radial ESWT in patellar tendinopathy summary of evidence

OutcomesComparisonsRelative effect (95% CI)Patients /studies (n)Quality of evidence (GRADE)Clinical significance
Average estimate /assumed risk in the ESWT groupAverage estimate /assumed risk in the control group
VISA-P score
Follow-up:
7 weeks
Focused ESWT: mean±SD was 59.6±16.9Radial
ESWT: mean±SD was 53.5±21.5
MD 6.10
(−5.43 to 17.63)
The difference was not clinically and statistically significant
43/1
Very low1,2
Very low level of evidence of no difference between focused and radial ESWT in VISA-P scores
Follow-up: 14 weeksFocused ESWT: mean±SD was 63.6±24.2Radial
ESWT: mean±SD was 58.4±22.1
MD 5.20
(−8.67 to 19.07)
The difference was not clinically and statistically significant
43/1
Very low1,2
Very low level of evidence of no difference between focused and radial ESWT in VISA-P scores
VAS score*
Follow-up: 7 weeks
Focused ESWT: mean±SD was 3.2±3.5Radial
ESWT: mean±SD was 3.6±2.6
MD −0.40
(−0,25 to 1.45)
The difference was not clinically and statistically significant
43/1
Very low1,2
Very low level of evidence of no difference between focused and radial ESWT in pain scores
Follow-up: 14 weeksFocused ESWT: mean±SD was 3.4±3.5Radial
ESWT: mean±SD was 3.0±2.7
MD 0.40
(−1.47 to 2.27)
The difference was not clinically and statistically significant
43/1
Very low1,2
Very low level of evidence of no difference between focused and radial ESWT in pain scores
Patient-ratedpain reduction**
Follow-up: 7 weeks
Focused ESWT: MD from baseline was 1.2 pointsRadial ESWT: MD from baseline was 0.5 pointsNot estimable43/1N/AESWT: much improved
PRP: minimally improved
Follow-up: 14 weeksFocused ESWT: MD from baseline was 1.0 pointsRadial ESWT: MD from baseline was 1.1 points Not estimable43/1N/AESWT: minimal improved
PRP: much improved
  • *Pain scores are referred to 10 single-leg decline squats on injured leg.

  • **Cut-off points adjusted from Farrar et al. 44

  • 1 Only one randomised controlled trial included in analyses.

  • 2 Decreased level of evidence due to indirect comparison (both groups received a standardised eccentric training programme).

  • ESWT, extracorporeal shockwave therapy; GRADE, Grading of Recommendations Assessment, Development and Evaluation; MD, mean difference; N/A, not available; PRP, platelet-rich plasma.