Radiographic characterization of OPLL progression in patients receiving laminoplasty with a minimum of two-years follow-up.
Neurosurg Rev
; 47(1): 505, 2024 Aug 29.
Article
in En
| MEDLINE
| ID: mdl-39207586
ABSTRACT
Ossification of the posterior longitudinal ligament (OPLL) is a common cause of degenerative cervical myelopathy (DCM) in Asian populations. Characterization of OPLL progression following laminoplasty remains limited in the literature. 29 patients with OPLL received cervical laminoplasty and a minimum of 2-years follow-up. Clinical and radiological surveillance occurred at 3-months, 6-months, 12-months post-op and then at yearly intervals. Transverse (anteroposterior) diameter and sagittal length of OPLL in relation to their cervical vertebral level of localisation was assessed upon immediate post-op radiographs compared to those obtained at subsequent follow-up. OPLL progression was defined as an increase in transverse dimensions and/or length by ≥ 2 mm. The average period of clinical follow-up was 6.7 ± 3.3 years. Upon latest follow-up, 79% of patients demonstrated at least 2 mm of transverse or longitudinal progression of OPLL. This corresponded to 2-years and 5-year progression rates of 54% and 71% respectively. OPLL located over C5 demonstrated the greatest transverse progression rate at (0.24 ± 0.34 mm / year). The mean overall longitudinal progression rate was 1.61 ± 2.06 mm / year. No patients experienced neurological decline resulting from OPLL progression requiring revision decompression during the period of post-operative observation. Characterizing transverse and longitudinal progression by cervical level via radiographs has implications in surgical planning for OPLL and should be consolidated upon post-operative CT/MRI scans as well as larger sample sizes.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cervical Vertebrae
/
Ossification of Posterior Longitudinal Ligament
/
Disease Progression
/
Laminoplasty
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Neurosurg Rev
/
Neurosurg. rev
/
Neurosurgical Review
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
Alemania