The anatomical relationship of neurovascular structures to the plantar
fascia after endoscopic fasciotomy was studied in 13 adult fresh-froz
en cadaver feet. Using a single portal technique, an endoscopic system
was placed into the plantar compartment through a 1-cm medial incisio
n. Under direct endoscopic visualization, the plantar fascia was relea
sed. The feet were then dissected and the anatomic relationship of the
neurovascular structures to the area of release was studied. The aver
age amount of plantar fascia released was 81%. The average distance of
the release to the lateral plantar nerve, and the nerve to the abduct
or digiti minimi was 10.5 and 12.3 mm, respectively. The flexor digito
rum brevis muscle was partially transected in 46% of the cases, and th
e average amount of muscle transected was 0.8 mm. The endoscopic appro
ach to the release of the plantar fascia provides adequate release and
does not appear to pose any danger to underlying neurovascular struct
ures.