Clinical trial NCT01011569: Comparison of Cage Versus Plate in One Level Cervical Disc Disease
Official title: Randomized Controlled Trial of Cage Versus Plate in One Level Cervical Disc Disease
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Cervical Disc Disease
Keywords: difference
Lead sponsor: Seoul National University Hospital
Sponsor class: OTHER
First posted: 2009-11-11
Enrollment: 80
Sex: ALL
Minimum age (years): 20
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: patient who needs surgery due to cervical disc disease

Brief summary: 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.

Detailed 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.

Eligibility criteria: Inclusion Criteria:

* Inclusion criteria were single cervical disc disease with radiculopathy/myelopathy.

Exclusion Criteria:

* We excluded patients with severe spondylosis, multiple disc disease, overt instability, osteoporosis or previous cervical operation history.

Primary outcomes:
measure: Disc height ratio, cervical lordosis, bone fusion and segmental lordosis at the index level
timeFrame: 1/3/6/12/24/36 months after operation
Secondary outcomes:
Other outcomes:
Locations:
city: Seoul
country: Korea, Republic of
facility: Seoul National University Hospital
Study officials:
affiliation: Seoul National University Hospital
name: Chun Kee Chung, professor
role: PRINCIPAL_INVESTIGATOR
References:
citation: Kim CH, Chung CK, Hahn S. Autologous iliac bone graft with anterior plating is advantageous over the stand-alone cage for segmental lordosis in single-level cervical disc disease. Neurosurgery. 2013 Feb;72(2):257-65; discussion 266. doi: 10.1227/NEU.0b013e31827b94d4.
citation: Lee SE, Chung CK, Kim CH. Difference in canal encroachment by the fusion mass between anterior cervical discectomy and fusion with bone autograft and anterior plating, and stand-alone cage. J Clin Neurosci. 2016 Jul;29:121-7. doi: 10.1016/j.jocn.2015.10.039. Epub 2016 May 24.