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Experience with five different intervertebral disc spacers for cervical spondylodesis.

D Kemmesies¹, U Meier

¹Neurochirurgische Klinik, Humaine Klinikum Bad Saarow, Germany.

Zentralblatt Fur Neurochirurgie

|March 4, 2005

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Intervertebral disc spacers offer an alternative to bone grafts for cervical spine fusion, reducing pain and complications. Several titanium and carbonium spacers were evaluated for handling, cost, and clinical outcomes.

Area of Science:

Neurosurgery
Orthopedic Surgery
Spinal Surgery

Background:

Ventral spondylodesis using autologous bone grafts for degenerative cervical spine disease can lead to complications and pelvic pain.
Intervertebral disc spacers were developed to mitigate these issues.

Purpose of the Study:

To evaluate the handling, radiographic contrast, implantation costs, and clinical results of different intervertebral disc spacers for ventral cervical spine fusion.
To compare titanium and carbonium disc spacers in a large patient cohort.

Main Methods:

A ventral approach following microsurgical discectomy and osteophyte removal was used to implant five types of disc spacers in 207 patients.
Patients with degenerative cervical spine disease (osteochondrosis, disc prolapse) were treated between September 1997 and January 2002.

Related Experiment Videos

Evaluation included handling, X-ray contrast, cost, and clinical outcomes at 3 months and 1 year.

Main Results:

All five evaluated disc spacers (Aesculap, Weber, Intromed, Medinorm titanium; AcroMed carbonium) are suitable for ventral cervical spondylodesis.
The Weber titanium spacer offered comfortable handling and moderate cost.
The Intromed cage demonstrated good cost-effectiveness and ease of handling.
The AcroMed carbonium spacer had insufficient X-ray contrast in the lower cervical spine and was expensive.
AcroMed, Medinorm, and Intromed spacers showed a tendency for endplate migration.

Conclusions:

Intervertebral disc spacers are viable alternatives for ventral cervical spine fusion, with varying profiles in handling, cost, and radiographic properties.
Specific titanium spacers (Weber, Intromed) showed promising characteristics regarding handling and cost-effectiveness.
Long-term results are necessary to provide a definitive statement on the efficacy and safety of these devices, particularly concerning migration tendencies.