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Orthopaedic Proceedings
Vol. 102-B, Issue SUPP_6 | Pages 114 - 114
1 Jul 2020
Thompson G Hardesty C Son-Hing J Ina J Tripi P Poe-Kochert C
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Intrathecal morphine (IM) is a common adjunct in paediatric spinal deformity surgery. We previously demonstrated with idiopathic scoliosis it provides safe and effective analgesia in the immediate postoperative period. This study represents our 25 year experience with IM in all diagnostic groups.

Our prospective Pediatric Orthopaedic Spine Database (1993–2018) was reviewed to identify all patients undergoing spinal deformity surgery who received IM and who did not. Patients 21 years of age or less who had a posterior spinal fusion (PSF) with segmental spinal instrumentation (SSI), and received 9–19 mcg/kg (up to 1 mg) of IM were included. Early onset scoliosis surgical patients were excluded. We assessed demographics, pain scores, time to first dose of opioids, diagnoses, surgical time, paediatric intensive care unit (PICU) admission and IM complications (respiratory depression, pruritus, nausea/ vomiting).

There were 986 patients who met inclusion criteria. This included 760 patients who received IM and 226 who did not. IM was not used for short procedures (< 3 hrs), respiratory concerns, unsuccessful access of intrathecal space, paraplegia, and anesthesiologist decision. Both groups followed the same strict perioperative care path. The patients were divided into 5 diagnostic groups (IM / non IM patients): idiopathic (578/28), neuromuscular (100/151), syndromic (36/17), and congenital scoliosis (32/21) and kyphosis (14/9). Females predominated over males (697/289). The first dose of opioids after surgery was delayed for a mean of 10.6 hrs in IM group compared to 2.3 hrs in the non-IM group (p=0.001). The postoperative pain scores were significantly lower in the IM groups in the Post Anesthesia Care Unite (p=0.001). Only 17 IM patients (2%) were admitted to the PICU for observation secondary to respiratory depression, none required re-intubation. None of the IM group were re-intubated. Forty-nine patients (6%) experienced pruritus in the IM group compared to 4 of 226 patients (2%) in the non IM group. There were 169 patients (22%) of the IM patients and 21 patients (9%) of the non IM had nausea and vomiting postoperatively. Three patients (0.39%) had a dural leak from the administration of IM but did not require surgical repair. There were no other perioperative complications related to the use of IM. There were no significant group differences.

Pre-incision IM is a safe and effective adjunct for pain management in all diagnostic groups undergoing spinal surgery. The IM patients had lower pain scores and a longer time to first administration of post-operative opioids. Although there is an increased frequency of respiratory depression, pruritus, and nausea/vomiting in the IM group, there were no serious complications.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVIII | Pages 182 - 182
1 Sep 2012
Thompson GH Ahmadinia K Poe-Kochert C Son-Hing JP
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Purpose

Management of early onset scoliosis (EOS) can be very challenging. Surgery is indicated when orthotics and casting fail. Growing rod instrumentation has become an effective approach in controlling the deformity while allowing spinal growth. However, as with any surgery, there are known complications including failure of the proximal foundation. We analyzed our patients who underwent growing rod instrumentation and identified factors that were correlated with proximal foundation failure.

Method

Our Pediatric Orthopaedic Spine Database (1992–2010) was reviewed for all patients who underwent growing rod instrumentation. Sixty-six patients with EOS were identified and divided into two groups: Group 1 – proximal foundation failure; and Group 2 – no incidents of proximal failure. The two groups were evaluated for differences in age, sex, weight, upper vertebral level in construct, presence of apical fusion, and pre-operative curve magnitude.