Lambdoid Synostosis Versus Positional Posterior Plagiocephaly, a Comparison of Skull Base and Shape of Calvarium Using Computed Tomography Imaging

The Journal of Craniofacial Surgery
Kirsti HurmerintaJunnu Leikola

Abstract

The differential diagnostics between the common positional posterior plagiocephaly and relatively rare lambdoid synostosis is important due to the differences in their treatment plan and clinical management. However, the clinical criteria for the diagnosis of lambdoid synostosis are not clear since there is a considerable overlap in the features of positional posterior plagiocephaly and unilateral lambdoid synostosis. To systematically evaluate the clinical findings in these 2 patient groups, we quantitatively compared the characteristics of endocranial skull base and ectocranial calvarium in 3D computed tomography, in 9 children (mean age 2.9 years) with unilateral lambdoid synostosis and 9 children with positional posterior plagiocephaly. The groups were sex and age matched. Our results show that the skull bases in the lambdoid synostosis are posteriorly shorter and more twisted than in positional posterior plagiocephaly. Anterior twisting was mild in both skull types. Our study confirmed earlier suggested diagnostic feature: prominent ipsilateral mastoidal bossing downward and laterally in all lambdoid skulls. In positional posterior plagiocephaly the bossing was typically not detected. Interestingly, there was a great varia...Continue Reading

References

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Citations

Mar 27, 2018·Plastic and Reconstructive Surgery·Marissa A SuchytaSamir Mardini
Mar 30, 2018·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Linda KuuselaAnne Saarikko
Dec 12, 2020·The Journal of Craniofacial Surgery·John SmetonaJohn A Persing
Nov 7, 2020·The Journal of Craniofacial Surgery·Omar AllamMichael Alperovich

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