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Microanatomy of the Separable Length of the C7.
Qin, Ben-gang; Fu, Guo; Yang, Jian-tao; Wang, Hong-gang; Zhu, Qing-tang; Liu, Xiao-lin; Zhu, Jia-kai; Gu, Li-qiang.
Affiliation
  • Qin BG; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
  • Fu G; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
  • Yang JT; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
  • Wang HG; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
  • Zhu QT; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
  • Liu XL; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
  • Zhu JK; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
  • Gu LQ; Department of Orthopaedic Trauma and Microsurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
J Reconstr Microsurg ; 32(2): 109-13, 2016 Feb.
Article in En | MEDLINE | ID: mdl-26372686
ABSTRACT

OBJECTIVE:

The objective of this study was to provide anatomical data on modified contralateral C7 (cC7) nerve root transfers by dissecting and measuring the separable lengths of the C7 root, trunk, and divisions. MATERIALS AND

METHODS:

Fifteen adult cervicothoracic specimens were dissected and measured using Vernier calipers after exposing the brachial plexus. Measurements included the length of the C7 from the root to the trunk, the lengths of the C7 root-trunk-anterior division (and posterior division). The epineuria at the C7 root-division-cord junctions were opened until the internal nerve bundles fused together and could not be separated by microdissection. The lengths of the C7 root-trunk-anterior (and posterior) division were measured again after microdissection. The lengths of cC7 nerve of 20 patients with bracial plexus avulsion were measured using the former technique.

RESULTS:

The length of the C7 root-trunk was 45.87 SD 10.43 mm. Before separation, the lengths of the C7 root-trunk-anterior division and the root-trunk-posterior division were 61.14 SD 13.44 and 54.63 SD 11.35 mm, respectively; after separation, the lengths were 74.67 SD 12.86 and 68.73 SD 11.86 mm, respectively. The prolonged lengths were 13.15 SD 4.26 and 14.21 SD 6.98 mm, respectively. The prolonged lengths were significantly greater (p < 0.05). The prolonged length of C7 nerve clinically was anterior division, 15.30 SD 3.76 mm and posterior division, 11.10 SD 3.01 mm.

CONCLUSION:

The C7 division lengths can be prolonged by dissecting the epineuria at the division-cord junction of the C7 nerve root.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Spinal Nerve Roots / Brachial Plexus / Cervical Vertebrae / Nerve Transfer / Brachial Plexus Neuropathies Limits: Adolescent / Adult / Female / Humans / Male / Middle aged Language: En Journal: J Reconstr Microsurg Journal subject: NEUROCIRURGIA Year: 2016 Type: Article Affiliation country: China
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Spinal Nerve Roots / Brachial Plexus / Cervical Vertebrae / Nerve Transfer / Brachial Plexus Neuropathies Limits: Adolescent / Adult / Female / Humans / Male / Middle aged Language: En Journal: J Reconstr Microsurg Journal subject: NEUROCIRURGIA Year: 2016 Type: Article Affiliation country: China