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PEEK versus metal cages in posterior lumbar interbody fusion: a clinical and radiological comparative study.

Authors
  • Cuzzocrea, F1
  • Ivone, A2
  • Jannelli, E1
  • Fioruzzi, A1
  • Ferranti, E1
  • Vanelli, R1
  • Benazzo, F1
  • 1 S.C. Ortopedia e Traumatologia, IRCCS Policlinico San Matteo, Università degli Studi di Pavia, Viale Camillo Golgi 19, 27100, Pavia, PV, Italy. , (Italy)
  • 2 S.C. Ortopedia e Traumatologia, IRCCS Policlinico San Matteo, Università degli Studi di Pavia, Viale Camillo Golgi 19, 27100, Pavia, PV, Italy. [email protected] , (Italy)
Type
Published Article
Journal
Musculoskeletal surgery
Publication Date
Dec 01, 2019
Volume
103
Issue
3
Pages
237–241
Identifiers
DOI: 10.1007/s12306-018-0580-6
PMID: 30536223
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Low back pain and sciatica represent a common disabling condition with a significant impact on the social, working and economic lives of patients. Transforaminal lumbar interbody fusion (TLIF) is a surgical procedure used in degenerative spine conditions. Several types of cages were used in the TLIF procedure. To determine whether there is a difference in terms of symptomatology improvement, return to daily activities and fusion rate between metal cages and polyetheretherketone (PEEK) cages. We have retrospectively reviewed 40 patients who have undergone TLIF from October 2015 to May 2016. All patients were clinically evaluated with questionnaires and were assessed with CT scan and standing X-ray films of the full-length spine. We found no significant functional differences in the two groups. At 1-year follow-up, osteolysis was present in 50% of cases of the PEEK cages and in 10% cases of the metal cages. The degree of fusion at 1 year was evaluated as complete in 40% cases of the metal cages and 15% cases of the PEEK cages. We have found a better fusion rate and prevalence of fusion in the group treated with metal cages, reflecting the well-known osteoinductive properties of titanium and tantalum.

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