Figure 7: Funnel plots of primary outcomes.

(A) For pain score at rest; (B) for pain score at activity; (C) for quadriceps and adductor strength measured by MVIC; (D) for quadriceps strength measured by manual 5-grade motor-strength scale.
(A) For pain score at rest; (B) for pain score at activity; (C) for quadriceps and adductor strength measured by MVIC; (D) for quadriceps strength measured by manual 5-grade motor-strength scale.