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Original ArticleOpen Access
Free Disc Fragment : A Retrospective Case Analysis
Arthomthurasook A 
,
Wanissorn R
,
Wanissorn R Preoperative diagnosis of free disc fragment is important in order to avoid treatment by
chymopapain and percutaneous method of disc removal or anterior discectomy. This retrospective
case analysis was to study the cause, physical findings and appropriate investigation to identify
free disc fragment before surgery. One hundred and thirteen operative patients of herniated
lumbar disc were studied. Of these, eleven patients
(9.7%)
were diagnosed with free disc frag-
ment. The results revealed that one patient was diagnosed preoperatively with free disc fragment
by myelography and MRI and three other patients using MRI alone. We concluded that pre-
operative diagnosis of free disc fragment can be made through identification of a large myelo-
graphic defect and/or sagittal scan MRI showing migration of disc material from native disc
space.
Key word : Free Disc Fragment, Herniated Lumbar Disc
chymopapain and percutaneous method of disc removal or anterior discectomy. This retrospective
case analysis was to study the cause, physical findings and appropriate investigation to identify
free disc fragment before surgery. One hundred and thirteen operative patients of herniated
lumbar disc were studied. Of these, eleven patients
(9.7%)
were diagnosed with free disc frag-
ment. The results revealed that one patient was diagnosed preoperatively with free disc fragment
by myelography and MRI and three other patients using MRI alone. We concluded that pre-
operative diagnosis of free disc fragment can be made through identification of a large myelo-
graphic defect and/or sagittal scan MRI showing migration of disc material from native disc
space.
Key word : Free Disc Fragment, Herniated Lumbar Disc
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