A spontaneous anterior fusion of lumbar spine after posterolateral lumbar fusion with pedicle screw-plate system
Issued Date
2025-12-01
Resource Type
eISSN
14712474
Scopus ID
2-s2.0-85217656938
Pubmed ID
39893374
Journal Title
BMC Musculoskeletal Disorders
Volume
26
Issue
1
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SCOPUS
Bibliographic Citation
BMC Musculoskeletal Disorders Vol.26 No.1 (2025)
Suggested Citation
Kraiwattanapong C., Chandrsawang I., Keorochana G., Rajinda P., Chanplakorn P., Leelapattana P., Udomsubpayakul U., Lertudomphonwanit T. A spontaneous anterior fusion of lumbar spine after posterolateral lumbar fusion with pedicle screw-plate system. BMC Musculoskeletal Disorders Vol.26 No.1 (2025). doi:10.1186/s12891-024-08184-5 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/105357
Title
A spontaneous anterior fusion of lumbar spine after posterolateral lumbar fusion with pedicle screw-plate system
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Abstract
Background: Lumbar posterolateral fusion (PLF) with Pedicle Screw-Plate (PSP) fixation without interbody fusion found spontaneous anterior fusion (SAF). No study has reported the SAF of lumbar spine in patients who underwent PLF. This study reports the rate of SAF of lumbar spine after PLF with PSP system compared with the rate of SAF after PLF with pedicle screw-rod (PSR) system. Methods: Retrospective reviews of charts and radiographs were performed in 111 patients who underwent PLF with PSP system and PSR system for treatment of degenerative lumbar spine. Demographic data, diagnosis, Meyerding grading, level of fusion, Pfirrmann grading, disc height, pedicle screw depth, follow-up time and SAF were compared between PSP and PSR groups. Results: Fifty-five patients in the PSP group and 56 patients in the PSR group were included with similar baseline characteristics. There were more degenerative spondylolisthesis patients in the PSP group compared with patients in the PSR group. However, there was no significant difference of Pfirrmann grading in both groups. Fifteen patients (27.3%) in the PSP group developed SAF while no patient in the PSR group had SAF. When patients in the PSP group were analyzed, the mean follow-up time in patients with SAF was significantly longer than the no SAF group. Conclusion: This study has reported SAF of lumbar spine in patients who underwent PLF with the PSP system. The SAF increasingly occurred with longer follow-up time. In this study, no SAF was found in patients who underwent PLF with the PSR system.