- See:
- Cervical Stenosis:
- Central Cord Syndrome
- Soft Disc Protrusion:
- Cervical Spondylosis"
- Discussion:
- increases the space available for the cord thru posterior approach:;
- results in less damage to facet joints;
- high-speed burr & small Kerrison rongeur are used to thin out and cut lateral aspect of the lamina;
- preserves more stability;
- laminaplasty results in loss of motion, esp in extension;
- may help to prevent progression of spondylosis & development of deformity;
- disadvantages:
- results in loss of cervical motion;
- relapse of stenosis may occur if hyper-trophic bone growth occurs at laminaplasty sites;
- indications: multi-level spondylosis
- contra-indications:
- w/ loss of lordosis, kyphosis or in patients whose primary pathology is anterior;
- w/ multi-level disease consider performing laminaplasty on the stable levels (where facets remain undamaged), and performing posterior
fusion on levels w/ instability (or facet damage)