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KMID : 0616620020080030321
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Journal of Soonchunhyang Medical College
2002 Volume.8 No. 3 p.321 ~ p.327
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An Analysis of Relationship between Level at L_(5) Vertebra Body and Herniated Intervertebral Disc
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김학현/Kim H.H.
최창욱/나수균/김연일/이병일/권재욱/김형득/Choi C.U./Rah S.K./Kim Y.I./Lee B.I./Kwon J.W./Kim H.D.
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Abstract
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Degeneration of the intervertebral disc of the lower lumbar spine is somewhat more often. than other spines due to anatomical and physiological characteristics. Several authors reported that there is a difference in the incidence of disc degeneration in the L_(4)~L_(5) and L_(5)~S_(1) disc spaces dependent on the position of the intercrestal line.
In 1982, Kirkaldy-Willis recognized the "level at Risk", accordance: with site of the L_(5) veretbra and intercrestal line, that is, when the L_(5) vertebra is sited low in the pelvis, the L_(4)~L_(5) joint is at risk in recurrent rotational strain and when L_(5) is high, the L_(5)~S_(1) joint is at risk to the strain.
The authors analized 60 cases of lumbar myelogran showing positive findings, and studied. the clinical relevance of the location of intercrestal line in relation to the site of disc degeneration in lower lumbar spine.
Obtained following results are;
1. On analysis of clinical symptoms, two cases out of 60 cases were L_(3)~4 cases were L_(4)~5 and 12 cases were L_(5)~S_(1), and that of myelogram, two cases were L_(3)~4,48 cases were L_(4)~5, 10 cases were L_(5)~S_(1).
2. Among the 60 cases, 14 cases were high sited L_(5) vertebrae and 46 cases low sited.
3. Low sited L_(5) vertebrae were 37 cases (80.4%) out of 42 cases which corresponded clinical symptoms and lumbar myelogram.
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