Comparison of Cage Versus Plate in One Level Cervical Disc Disease

Seoul National University

Status

Completed

Conditions

Cervical Disc Disease

Study type

Observational

Funder types

Other

Identifiers

NCT01011569

CAP trial

Details and patient eligibility

About

There are largely 2 surgical methods for one-level cervical disc disease; cage only and plate/graft. Even there are many reports about the efficacy of either cage only or plate/graft, prospective comparative study is few. The object of the present study is to present design of prospective study and to demonstrate preliminary result.

Full description

Prospective study was started from April 2004 after permission by our Institutional Review Board. Inclusion criteria were single cervical disc disease with radiculopathy/myelopathy. We excluded patients with severe spondylosis, multiple disc disease, overt instability, osteoporosis or previous cervical operation history. Operation method was randomized using the table of random sampling numbers. All operations were performed with standard anterior-medial approach. Two types of cages and 2 types of plates were used: cage, MC+ cage (LDR, Austin, Tx, USA) or Solis cage (Stryker, Kalamazoo, Michigan, USA); plate, Black stone (Orthofix, McKinney, Tx, USA) or Atlantis (Medtronic, Minneapolis, MN, USA). We checked neck disability index (NDI), neck visual analogue scale (VAS) and limb VAS before operation and 1/3/6/12/24/36 months after operation. Disc height ratio, cervical lordosis, bone fusion status and segmental lordosis at the index level were measured from X-rays and follow-up X-rays were obtained at before operation and 1/3/6/12/24/36 months after operation. The present prospective study was planned until 80 patients (cage n = 40, plate/graft n = 40) were enrolled.

Enrollment

80 estimated patients

Sex

All

Ages

20 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria