Article

An ultrasound study of anatomic variants of the sural nerve.

Department of Ultrasound, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China.
Muscle & Nerve (impact factor: 2.37). 02/2011; 43(4):560-2. DOI:10.1002/mus.21918 pp.560-2
Source: PubMed

ABSTRACT There are anatomic variations of the sural nerve (SN). Knowledge of these morphological types and the length of the SN are important for planning surgical reconstruction of peripheral nerves. Our purpose was to classify the morphological types of the SN by using ultrasound.
Two-hundred SNs in 100 normal subjects were examined by ultrasound with 13-MHz linear-array transducers. Classification of the SN was evaluated by its formation. The distance between the union and the distal point of the lateral malleolus was measured.
SN variants could be classified into three types: type I (81%); type II (18%); and type III (1%). In type I, the average length of the SN was 15.8 ± 5.7 cm.
The morphological types of the SN can be determined using ultrasound. Ultrasound classification of the SN is useful with regard to donor nerve surgical reconstruction of peripheral nerves.

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Keywords

100 normal subjects
 
13-MHz linear-array transducers
 
distal point
 
donor nerve surgical reconstruction
 
lateral malleolus
 
morphological types
 
planning surgical reconstruction
 
SN
 
SN variants
 
SNs
 
type II
 
type III
 
ultrasound
 
Ultrasound classification