Fig. 2
From: Tendon split lengthening technique for flexor hallucis longus tendon rupture
a In the midfoot, a longitudinal incision was made along the upper border of abductor hallucis muscle. b The FHL and FDL tendon were identified at the knot of Henry. A split incision (dotted line) was started at the knot of Henry and advanced distally 1.5 cm longer than the measured size of the tendon defect to divide FHL longitudinally into half. c Before the vertical cut at the end of the split incision, the whip stitch was made at both ends of the split tendon to secure the tendon from retracting proximally. FHL flexor hallucis longus, FDL flexor digitorum longus.