Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Spine
Abstract number: 24560
DYNESIS FIXATION OF SPINE, EARLY RESULTS IN INDIAN POPULATION
Mrinal SHARMA, Harsh BHARGAVA
Indraprasth Apollo Hospital, New Delhi (INDIA)
Introduction: Dynesys is a semi-rigid fixation system that allows minimal lengthening
and shortening between two segmental pedicle screws as opposed to a rigid metal
bar.The system maintains stability and near physiological motion patterns of the
lumbar spine. Theoretically it prevents adjacent segment degeneration. The dynamic
push/pull relationship between the spacers and the cord stabilizes the affected
vertebrae. The system is designed to permit careful controlled bending, straightening
and twisting movement in the affected joints.It preserves the intervertebral discs and
anatomy of the affected vertebrae. Methods: Seventeen cases were operated since
sept 2005, 11 males and 6 females age group 34-70 yrs. with a mean follow-up of 16
months (range, 9 to 36). Main indications were Symptomatic discopathy(2)One level
stenosis(8),Multi level stenosis( 4), Adjacent segment syndrome(2) and Dynamic
foraminal stenosis(1). Intraoperative breakage of cord seen in 2 cases. Stabilization
could not be achieved in 1 case. Post operative: Haematoma - seen in 1 case (six
weeks later) 3 cases were lost to followup Postoperative pain scores (VAS) improved
in 12 cases and results were best when dynamic fusion was combined with nerve
root decompression. CONCLUSION: Patient selection is of highest
importanceAlways keep fusion systems ready.Tissue handling and post op care
extremely important.Very good device in Symptomatic refractory discopathy with or
without early dynamic stenosis.May be useful in symptomatic Shmorl’s nodes.
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