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. 2020 Nov;29(11):2723-2733.
doi: 10.1007/s00586-020-06578-2. Epub 2020 Aug 31.

Osteolysis after cervical disc arthroplasty

Andrei Fernandes Joaquim  1 , Nathan J Lee  2 , Ronald A Lehman Jr  2 , Luis M Tumialán  3 , K Daniel Riew  2
Affiliations

Osteolysis after cervical disc arthroplasty

Andrei Fernandes Joaquim et al. Eur Spine J. 2020 Nov.

Abstract

Purpose: Cervical disc arthroplasty (CDA) has become an increasingly popular treatment for cervical degenerative disc disease. One potential complication is osteolysis. However, current literature on this topic appears limited. The purpose of this study is to elucidate the incidence, aetiology, consequence, and subsequent treatment of this complication.

Methods: A systematic literature review was performed according to the PRISMA guidelines. Studies discussing the causes, incidence and management of osteolysis after a CA were included.

Results: A total of nine studies were included. We divided these studies into two groups: (1) large case series in which an active radiological evaluation for osteolysis was performed (total = six studies), (2) case report studies, which discussed symptomatic cases of osteolysis (total = three). The incidence of asymptomatic osteolysis ranged from 8 to 64%; however, only one study reported an incidence of < 10% and when this case was excluded the incidence ranged from 44 to 64%. Severe asymptomatic bone loss (exposure of the implant) was found in less than 4% of patients. Bone loss from osteolysis appeared to occur early (< 1 year) after surgery and late (> 1 year) as well. Symptomatic patients with osteolysis often required revision surgery. These patients required removal of implant and conversion to fusion in the majority of the cases.

Conclusions: Osteolysis after CDA is common; however, the majority of cases have only mild or asymptomatic presentations that do not require revision surgery. The timing of osteolysis varies significantly. This may be due to differences in the aetiology of osteolysis.

Keywords: Anterior cervical disc replacement; Anterior cervical fusion; Bone loss; Cervical arthroplasty; Cervical degenerative disease; Cervical spondylosis; Osteolysis; Posterior cervical fusion.

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References

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