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Lumbar Total Disc Replacement Device Removals And Revisions Performed During A 20 Year Experience With 2,141 Patients – Lumbar Disc Replacement

The article summarizes the findings of a retrospective study on the incidence and reasons for lumbar total disc replacement (TDR) removal or revision. The study collected data from 2,141 lumbar TDR patients over a period of 20 years. The results showed that 1.26% of the patients underwent TDR removal or revision. The most common reasons for removal were migration and/or loosening of the device, problems post-trauma, and lymphocytic reaction to device materials. The study also found that 37.0% of removals/revisions occurred within one month post-implantation, and 40.7% occurred in the first 25 TDR cases performed by individual surgeons. One significant vascular complication was reported. Overall, the study suggests that TDRs have a low rate of removal or revision, supporting their safety

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
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Published article

In this large consecutive series, 1.26% of TDRs were removed/revised. The low rate over a 20 year period supports the safety of these devices.

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Abstract Study design: This was a retrospective study with prospective patient contact attempted to collect current data. Objective: The purpose was to investigate the incidence and reasons for lumbar total disc replacement (TDR) removal or revision. Summary of background data: A concern regarding lumbar TDR was safety, particularly the need for device removal or revision.,

Abstract

Study design: This was a retrospective study with prospective patient contact attempted to collect current data.

Objective: The purpose was to investigate the incidence and reasons for lumbar total disc replacement (TDR) removal or revision.

Summary of background data: A concern regarding lumbar TDR was safety, particularly the need for device removal or revision. This may be particularly important considering removal/revision requires repeat anterior exposure with increased risk of vascular injury.

Methods: Data were collected for a series of 2,141 lumbar TDR patients beginning with the first case experience in 2000. Mean follow-up was 78.6 months. For each case of device removal/revision, the reason, duration from index surgery, and procedure performed were recorded.

Results: Of 2,141 patients, 27 (1.26%) underwent TDR removal or revision. Device removal was performed in 24 patients (1.12%) while 3 patients underwent revision (0.14%). Of the 24 removals: 12 were due to migration and/or loosening, 3 developed problems post-trauma, 2 developed lymphocytic reaction to device materials, 2 had ongoing pain, and there was one case of each: TDR was too large, vertebral body fracture (osteoporosis), lytic lesion, device subsidence and facet arthrosis, and infection seeded from a chest infection 146 months post-TDR. The 3 revisions were for: Core repositioning (technique error), device repositioning after displacement, and core replacement due to wear/failure. With respect to timing, 37.0% of removals/revisions occurred within one month post-implantation. Of note, 40.7% of removals/revisions occurred in the first 25 TDR cases performed by individual surgeons. There was one significant vascular complication, occurring in a patient whose TDR was removed due to trauma. This was also the only patient among 258 with >15-year follow-up who underwent removal/revision.

In this large consecutive series, 1.26% of TDRs were removed/revised. The low rate over a 20 year period supports the safety of these devices.

The London Spine Unit : best situated treatment facility in the world

Read the original publication:

Lumbar Total Disc Replacement Device Removals and Revisions Performed During a 20 Year Experience with 2,141 Patients

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Abstract Study design: This was a retrospective study with prospective patient contact attempted to collect current data. Objective: The purpose was to investigate the incidence and reasons for lumbar total disc replacement (TDR) removal or revision. Summary of background data: A concern regarding lumbar TDR was safety, particularly the need for device removal or revision.

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