当前位置： SCI文献检索 > FOOT & ANKLE INTERNATIONAL期刊下所有文献 > Safe Zone for the Plantar Portal: A Cadaveric Study.

Safe Zone for the Plantar Portal: A Cadaveric Study.

Abstract：

BACKGROUND:Understanding the plantar nerve anatomy is crucial for safe endoscopic surgery of the sole. We aimed to anatomically dissect the lateral aspect and soles of cadaveric feet to investigate the safety of peroneus longus tendoscopy with a plantar lateral portal and the safe zones for plantar portals. METHODS:We studied 36 feet of 24 cadavers (mean age, 86.5 years). A cannula for 2.7-mm scope was inserted from the plantar lateral portal to the peroneus longus tendon, and the positional relationship between the cannula and sural nerve was observed. Then, the soft tissue of the sole was dissected, and the relationships between the plantar nerve and flexor digitorum longus tendon and flexor hallucis longus tendon was observed. The plantar nerve course was digitally imaged and uploaded into Image J software to determine nerve position. We further observed the positional relationship between the cannula and plantar nerve. RESULT:The mean minimum distance between the cannula and sural nerve was 13.8 mm, and the closest distance was 4.2 mm, allowing for the relatively safe creation of a plantar lateral portal. The use of the plantar lateral portal and evaluation of the peroneal tendon was safe with respect to the lateral plantar nerve as the nerve was in a different tissue layer of the foot. Dissection of the plantar foot demonstrated a relatively safe zone, 36.4% to 56% along a line between the medial aspect of the base of the first metatarsal bone to the proximal tip of the fifth metatarsal. This region may allow for a plantar endoscopic portal; however an anatomic variation may result in the plantar nerve being within this zone. The flexor digitorum longus tendon and peroneus longus tendon passed through the deep layer of the relatively safe zone. CONCLUSION:Peroneus longus tendoscopy was relatively safe to perform from a plantar lateral portal. No neurovascular structure exists on the slightly medial aspect of the central region of the sole, potentially allowing for a relatively safe creation of plantar central portal. An approach from the plantar central portal to the flexor digitorum longus tendon, flexor hallucis longus tendon, and peroneus longus tendon allows for a greater range of vision and treatment options as compared with conventional approaches. The combination of the plantar central portal with portals such as the plantar lateral portal may further the development of endoscopic surgery of the sole. CLINICAL RELEVANCE:We found the anatomic characteristics of a relatively safe zone for the plantar portal for plantar lateral portal.

journal_name

Foot Ankle Int

journal_title

Foot & ankle international

authors

Maeda S,Niki H,Hirano T,Akiyama Y

doi

10.1177/1071100715607964

subject

Has Abstract

pub_date

2016-02-01 00:00:00

pages

210-7

issue

eissn

1071-1007

issn

1944-7876

pii

1071100715607964

journal_volume

pub_type

杂志文章

在线工具

Safe Zone for the Plantar Portal: A Cadaveric Study.