Cervical Disc Arthroplasty
The London Spine Unit : best recognised spine centre on Harley Street UK
Published article
CONCLUSIONS: The clinical outcomes were similar among constructs concerning different locations of CDA and ACDF in three-level hybrid surgery. ROM of the cervical spine in type Ic group decreased significantly compared with that in type Ia and type Ib groups. The fusion rates of superior ACDF segments were higher at early timepoints after surgery than those of inferior ACDF segments. This article is protected by copyright. All rights reserved.
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Abstract
Purpose: To compare the differences among constructs with one-level cervical disc arthroplasty (CDA) and two-level anterior cervical discectomy and fusion (ACDF).
Methods: A retrospective study was conducted involving patients who underwent one-level CDA and two-level ACDF between June 2012 and July 2020. According to the different locations of CDA and ACDF, we divided the constructs into three types: type Ia: CDA-ACDF-ACDF; type Ib: ACDF-CDA-ACDF; type Ic: ACDF-ACDF-CDA. The differences of clinical and radiological outcomes were evaluated.
Results: 53 patients were included with 29 in type Ia group, 11 in type Ib group, and 13 in type Ic group. After surgery, all groups showed significant improve in JOA, NDI and VAS scores (p<.001). ROM of the total cervical spine in type Ic group decreased significantly compared with those in type Ia and type Ib groups (p<.05). No significant differences of ROM of the arthroplasty segment and the variations on ROM of superior adjacent segment were observed among three groups. The fusion rates of the superior ACDF segments were significantly higher at 6 and 12 months postoperatively than those of the inferior ACDF segments (p<.05).
Conclusions: The clinical outcomes were similar among constructs concerning different locations of CDA and ACDF in three-level hybrid surgery. ROM of the cervical spine in type Ic group decreased significantly compared with that in type Ia and type Ib groups. The fusion rates of superior ACDF segments were higher at early timepoints after surgery than those of inferior ACDF segments. This article is protected by copyright. All rights reserved.
Keywords: Cervical degenerative disc disease; Constructs; Hybrid surgery; Location; Three-level.
The London Spine Unit : best recognised spine centre on Harley Street UK
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