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The Role of Preoperative Imaging in the Management of Nonsyndromic Lambdoid Craniosynostosis.
Journal of Craniofacial Surgery 2018 January
BACKGROUND: The necessity of imaging for patients with craniosynostosis is controversial. Lambdoid synostosis is known to be associated with additional anomalies, but the role of imaging in this setting has not been established. The purpose of this study was to evaluate the impact of preoperative imaging on intraoperative and postoperative management among patients undergoing operative intervention for lambdoid craniosynostosis.
METHODS: A retrospective review of patients undergoing cranial vault remodeling for lambdoid craniosynostosis between January 2006 and 2014 was conducted. Patient demographics, age at computed tomography scan, age at surgery, results of the radiologic evaluation, operative technique, and modification of the diagnosis following the radiologic studies were analyzed. A pediatric neuroradiology and the surgical team interpreted the radiographs. The primary outcome was change in intraoperative or postoperative management based on imaging results.
RESULTS: A total of 11 patients were diagnosed with lambdoid synostosis. Of these patients, 81.8% had abnormalities on imaging relevant to operative planning. The most common anomalies were Chiari I malformation (45%) and venous anomalies of the posterior fossa (36%). Preoperative imaging altered the management of 9 (81.8%) patients. Closer follow-up was required for 6 patients (54%). Suboccipital decompression was performed in 4 patients (36%). Venous anomalies were found in 4 patients (36%). The diagnosis was changed from positional plagiocephaly to lambdoid synostosis in 2 patients (18%).
CONCLUSIONS: Given the frequency and significance of radiographic abnormalities in the setting of lamboid synostosis, preoperative imaging should be considered during the operative planning phase as it can affect postoperative and intraoperative management.
METHODS: A retrospective review of patients undergoing cranial vault remodeling for lambdoid craniosynostosis between January 2006 and 2014 was conducted. Patient demographics, age at computed tomography scan, age at surgery, results of the radiologic evaluation, operative technique, and modification of the diagnosis following the radiologic studies were analyzed. A pediatric neuroradiology and the surgical team interpreted the radiographs. The primary outcome was change in intraoperative or postoperative management based on imaging results.
RESULTS: A total of 11 patients were diagnosed with lambdoid synostosis. Of these patients, 81.8% had abnormalities on imaging relevant to operative planning. The most common anomalies were Chiari I malformation (45%) and venous anomalies of the posterior fossa (36%). Preoperative imaging altered the management of 9 (81.8%) patients. Closer follow-up was required for 6 patients (54%). Suboccipital decompression was performed in 4 patients (36%). Venous anomalies were found in 4 patients (36%). The diagnosis was changed from positional plagiocephaly to lambdoid synostosis in 2 patients (18%).
CONCLUSIONS: Given the frequency and significance of radiographic abnormalities in the setting of lamboid synostosis, preoperative imaging should be considered during the operative planning phase as it can affect postoperative and intraoperative management.
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