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Risk Factors Associated with Cage Retropulsion After Lumbar Interbody Fusion – Lumbar Fusion

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A recent study aimed to identify the risk factors associated with cage retropulsion (CR), a complication that can occur after lumbar interbody fusion (LIF). The study analyzed clinical data from patients who underwent LIF between 2014 and 2018, dividing them into a CR group and a non-CR group. The results showed that CR was more common in patients with osteoporosis and that the cages of retropulsion were placed at the posterior of the disk space. Additionally, a pear-shaped disk and intraoperative endplate injury were found to be risk factors for CR. The study concluded that intraoperative endplate injury, pear-shaped disk, osteoporosis, and posterior cage position were all associated with an increased risk of CR after LIF

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
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Published article

CONCLUSION: Intraoperative endplate injury, pear-shaped disk, osteoporosis, and posterior cage position were noted as CR-associated risk factors after LIF.

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Turk Neurosurg. 2023 Mar 21. doi: 10.5137/1019-5149.JTN.43124-23.2. Online ahead of print.ABSTRACTAIM: Cage retropulsion (CR) is a complication following lumbar interbody fusion (LIF). To date, few studies have concentrated on the relative risk factors associated with this complication. This study aimed to identify the CR-associated risk factors.MATERIAL AND METHODS: Clinical data of patients who underwent LIF,

Turk Neurosurg. 2023 Mar 21. doi: 10.5137/1019-5149.JTN.43124-23.2. Online ahead of print.

ABSTRACT

AIM: Cage retropulsion (CR) is a complication following lumbar interbody fusion (LIF). To date, few studies have concentrated on the relative risk factors associated with this complication. This study aimed to identify the CR-associated risk factors.

MATERIAL AND METHODS: Clinical data of patients who underwent LIF between January 2014 and December 2018 at three medical centers were retrospectively analyzed. Patients were divided into CR group and non-CR (NCR) group according to whether they experienced CR or not. This study analyzed radiological and surgical parameters to identify risk factors associated with CR.

RESULTS: The enrolled 823 patients who underwent LIF had a total of 1205 disk levels. There were 387 men and 436 women, with a mean age of 58.8 (range, 33-86) years. The average follow-up time was 16.6 (range, 12-27) months. CR was found in 21 patients (9 men and 12 women, 21 levels). The incidence of CR was higher in patients with osteoporosis than those with a normal bone mineral density (BMD). The cages of retropulsion were all placed at the posterior of disk space by immediately postoperative X-ray or computed tomography (CT) scan. On the contrary, only 35.6% of cages were placed at the posterior of space in the NCR group. Pear-shaped disk was found in 10 of 21 patients in the CR group (47.6%), whereas it was noted in only 13.4% of cases in the NCR group. Furthermore, 13 out of 21 patients in the CR group experienced intraoperative endplate injury (61.9%), while only 13.4% of patients experienced that in the NCR group. Risk factors for CR were osteoporosis, posterior cage position, pear-shaped disk and intraoperative endplate injury.

CONCLUSION: Intraoperative endplate injury, pear-shaped disk, osteoporosis, and posterior cage position were noted as CR-associated risk factors after LIF.

PMID:37614214 | DOI:10.5137/1019-5149.JTN.43124-23.2

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Risk Factors Associated with Cage Retropulsion After Lumbar Interbody Fusion

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Turk Neurosurg. 2023 Mar 21. doi: 10.5137/1019-5149.JTN.43124-23.2. Online ahead of print.ABSTRACTAIM: Cage retropulsion (CR) is a complication following lumbar interbody fusion (LIF). To date, few studies have concentrated on the relative risk factors associated with this complication. This study aimed to identify the CR-associated risk factors.MATERIAL AND METHODS: Clinical data of patients who underwent LIF

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