Chiari Formation: Atlantoaxial Instability is the Cause

Goel, Atul

doi:10.29252/irjns.3.2.36

Cited by 1 publication

(3 citation statements)

References 16 publications

(19 reference statements)

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“…Very few underwent additional intradural procedures like arachnoid lysis and tonsillar shrinkage (n = 12). Surgical fixation as a primary treatment was purely based on the surgeon’s choice and based on the recent publications [ 12 , 23 - 25 ]. In 9 of these patients, a bony decompression (removal of the posterior rim of FM) was also added.…”

Section: Methodsmentioning

confidence: 99%

“…Surgical fixation as a primary treatment was purely based on the surgeon's choice and based on the recent publications. 12,[23][24][25] In 9 of these patients, a bony decompression (removal of the posterior rim of FM) was also added.…”

Section: Surgical Treatmentmentioning

confidence: 99%

“…That said, we need to remember that PF has certain inherent issues like an increased cost of treatment, increased hospital stay, possible vascular injury, restricted neck movement, suboccipital hypesthesia, etc. A strategy of uniform C1/2 fixation has been advocated by Goel et al [11][12][13] in all CMs. Salunke et al 17,18 recently examined this strategy where uniform surgical fixation for pure CM-1 was performed and noted that 30% patients did not improve satis-factorily.…”

Section: Surgical Strategies and Their Efficaciesmentioning

confidence: 99%

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Type I Chiari Malformation Without Concomitant Bony Instability: Assessment of Different Surgical Procedures and Outcomes in 73 Patients

et al. 2021

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Posterior fossa decompression is the treatment of choice in type 1 Chiari malformation (CM-1) without bony instability. Although surgical fixation has been recommended by a few authors recently, comparative studies to evaluate these treatment strategies using objective outcome tools are lacking. Methods: Seventy-three patients with pure CM-1 (posterior fossa bony decompression [PFBD], n = 21; posterior fossa bony and dural decompression [PFBDD], n = 40; and posterior fixation [PF], n = 12) underwent a postoperative outcome assessment using Chicago Chiari Outcome Score (CCOS). Logistic regression analysis detected predictors of an unfavorable outcome. Results: Minimally symptomatic patients generally underwent a PFBD while most of the clinically severe patients underwent a PFBDD (p = 0.049). The mean CCOS score at discharge was highest in the PF (12.0 ± 1.41) and lowest in PFBDD group (10.98 ± 1.73, p = 0.087). Patients with minimal preoperative clinical disease severity (adjusted odds ratio [AOR], 4.58; 95% confidence interval [CI], 1.29-16.31) and PFBDD (AOR, 7.56; 95% CI, 1.70-33.68) represented risks for an unfavorable short-term postoperative outcome. Though long-term outcomes (CCOS) did not differ among the 3 groups (p = 0.615), PFBD group showed the best long-term improvements (mean follow-up CCOS, 13.71 ± 0.95), PFBDD group improved to a comparable degree despite a poorer short-term outcome while PF had the lowest scores. Late deteriorations (n = 3, 4.1%) occurred in the PFBDD group. Conclusion:Minimally symptomatic patients and PFBDD predict a poor short-term postoperative outcome. PFBD appears to be a durable procedure while PFBDD group is marred by complications and late deteriorations. PF does not provide any better results than posterior fossa decompression alone in the long run.

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Section: Methodsmentioning

confidence: 99%