Relationship of anatomical characteristics of medial and inferior calcaneal nerve with injury and pain
- VernacularTitle:跟内侧神经及跟下神经应用解剖学特征与损伤和疼痛的关系
- Author:
Baoli GUAN
;
Xiaojie WANG
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2005;9(25):199-200
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND: The existence of chronic heel pain induced by the injury of inferior calcaneal nerves prompted us .to conduct an anatomic study of the innervations of the medial and inferior calcaneal nerves, so as to avoid nerve injury during plantar operation.OBJECTIVE: To study the innervations and course of the medial and inferior calcaneal nervesDESIGN: Single specimen experiment.SETTING: Anatomical Laboratory of Shenyang Medical College.PARTICIPANTS: This study was completed at the Anatomical Laboratory of Shenyang Medical College between August 2002 and December 2004.Totally 36 lower limbs from volunteer donators or adult corpus provided by related department were routinely antisepticised for anatomical study.METHODS: Tibia nerve was separated from the middle 1/3 of leg until it branches into the medial plantar nerve (MPN) and the lateral plantar nerve (LPN), so as to investigate the origin, course, branches and innervation of the medial and inferior calcaneal nerve (MCN and ICN). The line linked the medial condyle center and plantar center was used as reference, nerve scored"0"if passed through the line, and scored positive value if above and negative value if below the line.MAIN OUTCOME MEASURES: The origin, course, branches and innervations of MCN and ICN in adults.RESULTS: Both medial and inferior calcaneal nerve could be identified in all 36 specimens. ① The source of MCN: 27 (75%) were found deriving from tibia nerve, 7 from LPN (19%) and 2 from tibia nerve and LPN (6%).② The branches of medial plantar nerve: 29 (81%) nerves had major branches, most of which lay superficial to the abductor hallucis muscle (AH) in the fat pad or under skin. ③ The source of ICN: 31 (86%) were found deriving from LPN, 3 from tibia nerve (8%) and 2 from MPN (6%).④ The origin of inferior calcaneal nerve: At (1.7±4.5) cm beneath the reference. ⑤ The branch and innervations of ICN: 24 nerves had two major branches (67%), most of which lay superficial to the medial edge of plantar quadratus.CONCLUSION: The origin, course, and innervations of MCN and ICN were relatively stable, it is preferable to take lateral process in plantar operation, and should be as rear as possible if taking inferior process so as to avoid nerve injury.
