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Mid-Long-Term Follow-Up Of Operated Level Kinematics After Single-Level Artificial Cervical Disc Replacement With Bryan Disc – Cervical Disc Replacement

The article evaluates the mid-long-term kinematics of single-level Bryan artificial cervical disc replacement (ACDR) in vivo. The study analyzed the center of rotation (COR) at the operated level in 38 patients who underwent the procedure. The results showed that 86.84% of cases achieved good-or-excellent outcomes based on clinical criteria. Significant improvements were observed in clinical outcomes, lordosis angle, and range of motion (ROM). The COR at the operated level remained stable. At the last follow-up, the COR showed negative correlations with ROM and translation. The study concludes that satisfactory clinical and radiological outcomes were achieved 7 years or more after the procedure

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
The London Spine Unit : most specialised treatment hospital in UK

Published article

CONCLUSIONS: Satisfactory clinical and radiological outcomes were achieved 7 years or more after single-level Bryan ACDR. At the operated level, preoperative COR was maintained, probably due to replicating the physiological interrelations of COR (Y), translation, and ROM.

Cervical Disc Replacement Surgery Expert. Best Spinal Surgeon UK
Abstract Objective: Evaluation of the mid-long-term kinematics of single-level Bryan artificial cervical disc replacement (ACDR) in vivo by analyzing the center of rotation (COR) at the operated level. Methods: A retrospective analysis was conducted using data collected from 38 patients who underwent single-level Bryan ACDR from January 2010 to March 2013. Radiological parameters including range,

Abstract

Objective: Evaluation of the mid-long-term kinematics of single-level Bryan artificial cervical disc replacement (ACDR) in vivo by analyzing the center of rotation (COR) at the operated level.

Methods: A retrospective analysis was conducted using data collected from 38 patients who underwent single-level Bryan ACDR from January 2010 to March 2013. Radiological parameters including range of motion (ROM), lordosis angle, translation, and COR were obtained. Clinical outcomes were assessed based on Odom Criteria, modified Japanese Orthopedic Association (mJOA), Neck Disability Index (NDI), and Visual Analogue Scale (VAS) scores. Correlations between COR and other follow-up data were discussed at the last follow-up.

Results: Compared with preoperative values, the last follow-up data showed that 86.84% of cases achieved good-or-excellent outcomes based on Odom criteria; Significant improvements were observed across all scales assessed for clinical outcomes (P < 0.05); Lordosis angle was significantly increased in both the overall cervical spine and the operated level (P < 0.05); ROM of the overall cervical spine, operated level, and adjacent levels was preserved (P > 0.05); There was no significant change in COR at the operated level (P > 0.05). At the last follow-up and at the operated level, COR (Y) showed negative correlations with ROM and translation (P < 0.05), but no follow-up data correlated with COR (X) were found (P > 0.05).

Conclusions: Satisfactory clinical and radiological outcomes were achieved 7 years or more after single-level Bryan ACDR. At the operated level, preoperative COR was maintained, probably due to replicating the physiological interrelations of COR (Y), translation, and ROM.

Keywords: Artificial cervical disc replacement; Bryan disc; Center of rotation; Clinical outcomes; Kinematics; Radiological outcomes.

The London Spine Unit : most specialised treatment hospital in UK

Read the original publication:

Mid-long-term follow-up of operated level kinematics after single-level artificial cervical disc replacement with Bryan disc

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Abstract Objective: Evaluation of the mid-long-term kinematics of single-level Bryan artificial cervical disc replacement (ACDR) in vivo by analyzing the center of rotation (COR) at the operated level. Methods: A retrospective analysis was conducted using data collected from 38 patients who underwent single-level Bryan ACDR from January 2010 to March 2013. Radiological parameters including range

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