• Users Online: 392
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Year : 2017  |  Volume : 52  |  Issue : 4  |  Page : 328-332

Safe zones of half-pin insertion in lumbar vertebrae cadaveric study

1 Department of Orthopedics Surgery, Benha University, Benha, Egypt
2 Department of Anatomy and Embryology, Benha University, Benha, Egypt

Correspondence Address:
Mohammed A Moselhy
Orthopedic Department, Benha University Kafer el Gazar, Banha, Qalyubia 13511
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/eoj.eoj_81_17

Rights and Permissions

Purpose This experimental study is to know what the safe zones and angles of half-pin insertion in lumbar vertebrae are, and if there are other new sites for half-pin insertion. Materials and methods A cadaver study using two bony and four cadaveric specimens was undertaken to examine the safe sites for half-pin insertion in the lumbar vertebrae. Half pins were inserted into specific demarcated sites. Results From our study we suggest that the pedicle of the lumbar vertebrae is a safe and strong region for the insertion of the half pins with 10°–40° divergence from the midline, where the new site of half-pin insertion in the vertebral body anteriorly and at the level of transverse process is safe at an angle that lies between 50° and 60° from the sagittal plane in L4 and L5. Conclusion We concluded that the application of external fixators in the lumbar spine is valuable with good safety margins of half-pin introduction in both the pedicle and the vertebral body.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded53    
    Comments [Add]    

Recommend this journal