RT info:eu-repo/semantics/article
T1 Long-term outcomes of posterior lumbar interbody fusion using stand-alone ray threaded cage for degenerative disk disease: A 20-year follow-up
A1 Baeesa, Saleh S.
A1 García Medrano, Belén
A1 Noriega González, David César
K1 Spinal fusion
K1 Fusión espinal
K1 Degenerative disk disease
K1 Enfermedad degenerativa de disco
AB Study Design: Retrospective study.Purpose: To analyze outcomes of posterior lumbar interbody fusion (PLIF) stand-alone cages.Overview of Literature: PLIF for degenerative disk disease using stand-alone cages has lost its popularity owing to implant-relatedcomplications and pseudoarthrosis.Methods: We analyzed the records of 45 patients (18 women, 27 men), operated between January 1994 and December 1996, witha mean follow-up of 18 years 3 months (20 years 3 months–22 years 3 months). Clinical outcomes were measured using visualanalogue score (VAS), Oswestry disability index (ODI), Odom’s criteria, and radiological measurements of fusion rate, Cobb angle, andimplant-related complications conducted at the preoperative evaluation, hospital discharge, 12-month follow-up, and final follow-up.Results: Preoperative mean VAS (back) was 6.9 and VAS (radicular) was 7.2, with mean improvements (p<0.05) of 2.9 and 3.1,respectively, at the final follow-up. Median preoperative ODI was 64.5, with a mean improvement to 34 and 42 at the 12-month andfinal follow-ups, respectively (p<0.05). Odom’s criteria at the 12-month follow-up were excellent in 11.2% patients, good in 57.7%,fair in 31.1%, and poor in none of the patients; at the final follow-up, no patient was classified as excellent, 71.1% as good, 22.2% asfair, and 6.7% as poor (p<0.05). Pseudoarthrosis was observed in five patients (11.1%), of whom, three (6.6%) required re-operation.Preoperative disk height was 9.23 mm, which increased to 13.33 mm in the immediate postoperative evaluation and was maintainedat 10.0 mm at the final follow-up (p<0.05). The preoperative mean L1–S1 Cobb angle was 34.7°, which changed to 44.7° in the immediate postoperative evaluation and dropped to 39.7° at the final follow-up (p<0.005).Conclusions: PLIF stand-alone cages were associated with good clinical outcomes. Although the fusion rate was excellent, maintenance of disk heights and a lordotic alignment were not achieved in the long term.
PB Korean Society of Spine Surgery
SN 1976-7846
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/44996
UL http://uvadoc.uva.es/handle/10324/44996
LA eng
NO Asian Spine Journal, 2016; vol. 10, n. 6. p. 1100-1105
NO Producción Científica
DS UVaDOC
RD 26-dic-2024