Scoliosis after median sternotomy in children with congenital heart disease

Prevalence of spinal deformity development after surgical management of a congenital heart disease among children: a systematic review and meta-analysis

INTRODUCTION

Open heart surgery is the most common treatment for congenital heart disease. Thoracotomy, sternotomy, or a combination of both are the main approaches used in open heart surgeries. In cardiac surgery, there have been concerns that these surgeries increase the likelihood of spinal deformities. Therefore, this systematic review and meta-analysis provided updated evidence on the prevalence of spinal deformities following congenital heart surgery.

METHOD

EMBASE, Medline, ScienceDirect, and Google Scholar were used to search for studies published until 2022. We include randomized clinical trials and observational studies that reported the prevalence of spinal deformities (scoliosis and kyphosis) after congenital heart surgery among participants without these deformities before surgery. Two independent reviewers independently screened literature identified from the databases. Two reviewers independently conducted screening of studies identified during the search, data extraction, and quality assessment of the included studies.

RESULTS

In total, 688 studies were screened; 13 retrospective and one prospective cohort studies were included, encompassing 2294 participants. The pooled prevalence of spinal deformities (scoliosis and kyphosis) after open heart surgery performed on skeletally immature patients was 23.1% (95% confidence interval [CI] = 23.1-35.3; I2 = 97.5%).

CONCLUSION

This review suggests that the prevalence of spinal deformities was high among patients who underwent sternotomy or thoracotomy.

The Prevalence of Scoliosis after Fontan Circulation Surgery Followed-Up to Adolescence

Introduction

The advancement of surgical techniques and perioperative management for congenital heart disease (CHD) has increased life expectancy. The surgical creation of the Fontan circulation maintains pulmonary blood flow without relying on an effective pump from the abnormal heart, relying on peripheral vascular resistance to maintain effective flow through the lungs. Unfortunately, this delicate mechanism is compromised when scoliosis restricts ventilation, leading to Fontan failure and a poor prognosis for life. This report describes the prevalence of scoliosis with Fontan completion surgery and the role of screening and surgical correction.

Methods

Ninety-six consecutive Japanese patients undergoing Fontan completion surgery for CHD between 2000 and 2017 were identified in our institutional records. The inclusion criterion was at least 7 years of follow-up after Fontan completion surgery, while the exclusion criteria were congenital, syndromic, and neuromuscular scoliosis. Radiographic and clinical parameters, including cardio-thoracic ratio (CTR) for cardiomegaly and cyanosis saturation, were compared between with and without scoliosis.

Results

There were 23 and 40 patients in the scoliosis and no scoliosis groups, respectively. The mean age at the final follow-up was 18.5 and 16.7 years in the scoliosis and no scoliosis groups, respectively (p=0.02). Mean CTR was 43.7% and 39.4% in the scoliosis and no scoliosis groups (p=0.016), and the mean saturation in room air at the final follow-up was 88.8% and 93.2%, respectively (p=0.036). There were no significant differences to clarify the risk factors with multivariate logistic regression analysis.

Conclusions

The prevalence of scoliosis with Fontan completion surgery was 36.5%. Screening for scoliosis is important for children with Fontan circulation surgery as part of their routine follow-up at least until they reach adolescence.

Evidence Level: 4.

Use of ionizing radiation in a Norwegian cohort of children with congenital heart disease: imaging frequency and radiation dose for the Health Effects of Cardiac Fluoroscopy and Modern Radiotherapy in Pediatrics (HARMONIC) study

BACKGROUND

The European-funded Health Effects of Cardiac Fluoroscopy and Modern Radiotherapy in Pediatrics (HARMONIC) project is a multicenter cohort study assessing the long-term effects of ionizing radiation in patients with congenital heart disease. Knowledge is lacking regarding the use of ionizing radiation from sources other than cardiac catheterization in this cohort.

OBJECTIVE

This study aims to assess imaging frequency and radiation dose (excluding cardiac catheterization) to patients from a single center participating in the Norwegian HARMONIC project.

MATERIALS AND METHODS

Between 2000 and 2020, we recruited 3,609 patients treated for congenital heart disease (age < 18 years), with 33,768 examinations categorized by modality and body region. Data were retrieved from the radiology information system. Effective doses were estimated using International Commission on Radiological Protection Publication 60 conversion factors, and the analysis was stratified into six age categories: newborn; 1 year, 5 years, 10 years, 15 years, and late adolescence.

RESULTS

The examination distribution was as follows: 91.0% conventional radiography, 4.0% computed tomography (CT), 3.6% diagnostic fluoroscopy, 1.2% nuclear medicine, and 0.3% noncardiac intervention. In the newborn to 15 years age categories, 4-12% had ≥ ten conventional radiography studies, 1-8% underwent CT, and 0.3-2.5% received nuclear medicine examinations. The median effective dose ranged from 0.008-0.02 mSv and from 0.76-3.47 mSv for thoracic conventional radiography and thoracic CT, respectively. The total effective dose burden from thoracic conventional radiography ranged between 28-65% of the dose burden from thoracic CT in various age categories (40% for all ages combined). The median effective dose for nuclear medicine lung perfusion was 0.6-0.86 mSv and for gastrointestinal fluoroscopy 0.17-0.27 mSv. Because of their low frequency, these procedures contributed less to the total effective dose than thoracic radiography.

CONCLUSION

This study shows that CT made the largest contribution to the radiation dose from imaging (excluding cardiac intervention). However, although the dose per conventional radiograph was low, the large number of examinations resulted in a substantial total effective dose. Therefore, it is important to consider the frequency of conventional radiography while calculating cumulative dose for individuals. The findings of this study will help the HARMONIC project to improve risk assessment by minimizing the uncertainty associated with cumulative dose calculations.

Activities of Daily Living, Physical Activity, Physical Fitness and Quality of Life in Children with Congenital Heart Disease: A Case-Control Study

BACKGROUND

Despite reports of reduced physical fitness in children with congenital heart disease (CHD), no specific performance evaluations for activities of daily living have been conducted.

OBJECTIVES

The aim was to compare the activities of daily living, quality of life, posture, physical fitness and physical activity levels of children with CHD with healthy controls (HC).

METHODS

The study included 30 children aged 6-14 diagnosed with moderate or severe CHD and 30 age-sex-matched HC. The sociodemographic and clinical data of the participants were recorded. All participants went through several tests, namely the TGlittre-P test for activities of daily living, the 6-minute walk test (6MWT) for functional capacity, the Fitnessgram test battery for physical fitness, the hand dynamometer for measuring grip strength, the pedometer for measuring physical activity, and both the child and parents reported the Pediatric Quality of Life Inventory (PedsQL) for evaluating the quality of life, in addition to posture analyses. Values of p < 0.05 were considered statistically significant.

RESULTS

Individuals with CHD had a longer TGlittre-P test completion time and a shorter 6MWT distance than HC (TGlittre-P: CHD 3.45 [3.24-4.02]min vs. HC 3.10 [2.57-3.23]min, 6MWT: CHD 514.00 [412.50-566.00]m vs. HC 591.50 [533.00-631.00]m). For the CHD group, sit-ups, push-ups, trunk lift, and sit-and-reach test scores within the Fitnessgram battery, grip strength, posture, and quality of life scores were lower than those for the HC group. Physical activity levels were similar in the groups.

CONCLUSIONS

The performance of activities of daily living, functional capacity, physical fitness, posture, and quality of life of children with moderate and severe CHD were affected compared to healthy peers.

Progression of infantile scoliosis after thoracotomy and sternotomy for the treatment of congenital cardiac abnormalities

PURPOSE

To determine whether the rate of progression of scoliosis is higher following thoracotomies and sternotomies in children.

METHODS

We undertook a retrospective review of 1744 patients from a tertiary paediatric referral unit who had sternotomies or thoracotomies from 2005 to 2010 to identify those with scoliosis and to determine where possible, the pre- and post-operative rate of scoliosis progression. A secondary objective was to assess the risk factors for progression after surgery through Chi-square analysis.

RESULTS

1419/1744 (81.4%) patients (55% M, 45% F) had post-op chest X-rays. 25% had a thoracotomy, and 75% had a sternotomy. 5.8% had scoliosis at their most recent chest X-ray (mean Cobb angle 20° (range 11-63°)). There was no significant difference for rates of scoliosis for those who had sternotomies vs thoracotomies (6.3% vs. 4.6% P = 0.258) but a significant difference for those who had primary vs revision sternotomies (5.1% vs. 9.9% P = 0.008). Pre- and post-op progression calculations were possible in 30 patients. The mean time from surgery to the start of the progression was 12 months (range 0-93 months). There was no significant difference between the rates of progression pre-op vs post-op: 1.0 vs. 0.5 deg/month, P = 0.228. There was no significant difference between the rates of post-op progression for those who had a sternotomy versus a thoracotomy (0.5 vs. 0.5 deg/month P = 0.503).

CONCLUSION

Thoracotomies and sternotomies do not appear to increase the rate of progression of scoliosis in these patients.

LEVEL OF EVIDENCE

III. Radiographs illustrating scoliosis progression.

Outcomes of Posterior Spinal Fusion in Pediatric Patients with Down Syndrome

BACKGROUND

Trisomy 21 or Down syndrome is associated with multiple orthopaedic manifestations. Although cervical instability is the most common spinal condition associated with Down syndrome, the prevalence of scoliosis has been estimated at 4.8% to 8.7%. Very few prior studies have documented the role of spinal fusion in this population, and all have included ≤10 patients.

METHODS

An institutional review board-approved multicenter retrospective analysis of patients with Down syndrome treated with spinal fusion between January 2009 and December 2019 was performed by cross-referencing Current Procedural Terminology (CPT) and International Classification of Diseases, Ninth and Tenth Revisions (ICD-9 and ICD-10) codes. Patients were followed for ≥2 years, with a mean follow-up of 3.77 years. Clinical and radiographic outcomes were collected, and complications were documented using the Clavien-Dindo-Sink (CDS) classification.

RESULTS

A total of 23 patients were included: 96% had ≥1 medical comorbidities, including 16 (70%) with congenital heart disease, of whom 88% had previous cardiac surgery, and 10 (44%) with thyroid disorders. All 23 patients underwent posterior spinal fusion. The mean estimated blood loss was 617 ± 459 mL, the mean length of the surgical procedure was 290 ± 92.7 minutes, and the mean length of hospital stay was 6.03 ± 2.91 days. The major Cobb angle measured 61.7° ± 17.6°, which corrected to 19.4° ± 14.8° (68.6% correction; p < 0.001), with well-maintained correction at 2 years of 22.0° ± 10.3° (64.3% correction; p = 0.158). Thirteen (57%) of 23 patients had a change in curve of >5°. There were no intraoperative complications; however, 12 patients (52%) sustained postoperative complications (e.g., need for reoperation, implant failure, and pulmonary complications), including 6 patients with CDS type 3 or 4 (e.g., wound dehiscence, late superficial abscess, pleural effusion, pseudarthrosis, and readmission for hypoxia). Four patients (17%) required a revision surgical procedure. One patient (4%) required an unplanned intensive care unit admission.

CONCLUSIONS

Although instrumented spinal fusion can effectively correct spinal deformity in these patients, complications are more frequent than in children with adolescent idiopathic scoliosis, with over half of patients sustaining a complication.

LEVEL OF EVIDENCE

Prognostic Level III . See Instructions for Authors for a complete description of levels of evidence.

Curve Characteristics and Surgical Outcomes in Scoliosis Associated With Childhood Sternotomy or Thoracotomy

BACKGROUND

The purpose of this study is to describe curve characteristics and postoperative outcomes in patients undergoing spinal fusion (SF) to treat thoracogenic scoliosis related to sternotomy and/or thoracotomy as a growing child.

METHODS

A retrospective review of electronic medical records of all patients with Post-Chest Incision scoliosis treated with SF was performed at 2 tertiary care pediatric institutions over a 19-year period. Curve characteristics, inpatient, and outpatient postoperative outcomes are reported.

RESULTS

Thirty-nine patients (62% female) were identified. Eighteen had sternotomy alone, 14 had thoracotomy alone, and 7 had both. Mean age at the time of first chest wall surgery was 2.5 years (range: 1.0 d to 14.2 y). Eighty-five percent of patients had a main thoracic curve (mean major curve angle 72 degrees, range: 40 to 116 degrees) and 15% had a main lumbar curve (mean major curve angle 76 degrees, range: 59 to 83 degrees). Mean thoracic kyphosis was 40 degrees (range: 4 to 84 degrees). Mean age at the time of SF was 14 years (range: 8.2 to 19.9 y). Thirty-six patients had posterior fusions and 3 had combined anterior/posterior. Mean coronal curve correction measured at the first postoperative encounter was 53% (range: 9% to 78%). There were 5 (13%) neuromonitoring alerts and 2 (5%) patients with transient neurological deficits. Mean length of hospital stay was 9±13 days. At an average follow-up time of 3.1±2.4 years, 17 complications (10 medical and 7 surgical) were noted in 9 patients for an overall complication rate of 23%. There was 1 spinal reoperation in the cohort. 2/17 (12%) complications were Clavien-Dindo-Sink class III and 5/17 (29%) were class IV.

CONCLUSION

Kyphotic thoracic curves predominate in patients with Post-Chest Incision scoliosis undergoing SF. Although good coronal and sagittal plane deformity can be expected after a fusion procedure, postoperative complications are not uncommon in medically complex patients, often necessitating longer postoperative stays.

LEVEL OF EVIDENCE

Level III.

Hemoptysis due to progressive scoliosis associated with congenital heart disease: a case report

Background

Patients with congenital heart disease (CHD) are associated with an increased incidence of scoliosis, often with severe progression. We report a case of hemoptysis caused by rapid scoliosis progression subsequent to surgery for CHD that was successfully managed by surgical curve correction following coil embolization.

Case presentation

A 14-year-old girl with scoliosis had undergone open heart surgery for CHD at the age of 1 year. She was first noted to have scoliosis at 12 years of age, which began to progress rapidly. At age 13, her main thoracic curve Cobb angle was 46°, and hemoptysis with high pulmonary vein pressure due to vertebral rotation was detected. Nine months after coil embolization, she received posterior spinal fusion from T5 to L2 for scoliosis correction. Postoperatively, her pulmonary vein diameter was enlarged, with no detectable signs of hemoptysis.

Conclusions

We encountered a case of hemoptysis caused by advanced scoliosis after cardiac surgery that was successfully treated by correction of the scoliotic curve following coil embolization. Patients with secondary scoliosis after surgery for CHD should be carefully monitored for the possibility of cardiovascular system deterioration.

Management of Cervical Kyphotic Deformity Associated With Loeys-Dietz Vasculopathy and Cardiac Transplantation: Case Report, Literature Review, and Strategies for Complex Skeletal Dysplasias

Seventy-six percent of pediatric patients with Loeys-Dietz syndrome (LDS), a connective tissue disorder driven by a transforming growth factor-beta (TGF-B) pathway mutation, manifest cervical spine malformations. A prior series showed that 16% required surgical stabilization. Spine surgery in LDS is associated with an 88% complication rate due to poor bone quality and cerebrovascular ectasia.

Of 77 patients with LDS, one patient who required spine surgery was identified in an institutional database from 2010 to 2020. A 15-year-old with LDS presented with symptomatic cervical myelopathy from a rapidly progressive and unstable cervical deformity. We performed a C5-6 corpectomy and an O-T2 posterior spinal fusion with recombinant human bone morphogenetic protein-2 (rhBMP-2). We achieved correction of her kyphosis and normalization of her neurologic status. She is neurologically well one year postoperatively with bony fusion.

The management of a pediatric patient with LDS, orthotopic heart transplantation (OHT), and craniocervical deformity with instability is a novel challenge. Long-segment constructs are beneficial, rather than sparing the occiput or cervicothoracic junction. Off-label BMP may aid an LDS patient with TGF-B mutation and sternotomy. Surgeons should continue immunomodulatory and antiplatelet medications when required for OHT.

Conservative treatment of a scoliosis patient after two heart surgeries in early childhood - A case report

Introduction

This is a case report of a juvenile female patient with scoliosis following two heart surgeries for congenital heart disease (CHD).

Patient presentation, management and outcome

Initially, the premenarchial female was 9 years old and had a Tanner stage 2–3 with a single thoracic curve of 65° Cobb. Because of the high risk for progression, immediate brace treatment was proposed as the father declined surgery. The patient received intensive treatment according to the Schroth Best Practice® programme and a Gensingen Brace® designed for large thoracic curves. Over the 18 months following the initial visit, she received two additional braces. As a result, the progression of the main curve was prevented. The patient continues to maintain an improved cosmetic result and is currently at a Risser 2.

Conclusion

Surgery performed for CHD in rare cases may lead to stiff spinal deformity as a consequence of that surgery. Progression of a severe and stiff curve was prevented during the most vulnerable phase of the pubertal growth spurt with an improved clinical result. Therefore, we assume that the patient may have a normal life in adulthood with minor restrictions only. Supported by pattern-specific high correction exercises and braces, these typical single thoracic curves can be re-compensated to a more balanced appearance, less prone to progression in adulthood.

Clinical implications

Because of the relative high risks of spinal fusion and the long-term unknowns of such an intervention, high-impact conservative treatment should be implemented first before surgical correction is considered.

Hemi-Clamshell Approach for Fetal Lung Interstitial Tumor Resection in a Neonate: A Case Report

Fetal lung interstitial tumor (FLIT) is a rare primary lung mass in neonates. Classical incisions, such as posterolateral thoracotomy or median sternotomy, do not provide optimal exposure of the operative field for the resection of pediatric thoracic giant tumors. Herein, we report a rare case of a FLIT in a full-term male neonate, with complete resection achieved using a hemi-clamshell approach, which provided the required visualization of the operative field. The neonate was transferred to our hospital because of mild respiratory distress, which developed 18-hour after normal vaginal delivery. A mass in his right chest, without a midline shift, was observed on chest radiographs. Computed tomography showed a well-circumscribed solid anterior cervicothoracic mass, with a uniform density and no apparent cysts, diagnosed as a primary thoracic giant tumor. Once the patient was clinically stabilized, we proceeded with right upper lobectomy, using a hemi-clamshell approach, full sternotomy, and anterolateral thoracotomy, on postnatal day 22.

Histopathologic examination revealed an 8.5 × 6.5 × 4.0 cm solid mass within the right upper lobe, which was diagnosed as a FLIT. His postoperative recovery was uneventful. The patient was followed up for 1 year, with no complaints or symptoms and no postoperative shoulder dysfunction. Gross total resection of primary thoracic giant tumors can be accomplished in neonates with optimal exposure of the chest cavity using a hemi-clamshell approach.

Surgical Correction of Scoliosis in Children with Severe Congenital Heart Disease and Palliated Single Ventricle Physiology

STUDY DESIGN

Case series.

OBJECTIVE

In this study we focus on this group, and describe the largest cohort to date of single ventricle patients undergoing surgical correction of scoliosis at a single institution.

SUMMARY OF BACKGROUND DATA

Outcomes of spinal surgery for patients with congenital heart disease (CHD) have evolved and most affected patients have uncomplicated procedures. The risk of perioperative complications remains highest in patients with single ventricle ("Fontan") physiology.

METHODS

We reviewed patients with single ventricle CHD and operative scoliosis repair over a 25-year span. Patients who had undergone a Fontan, bidirectional Glenn, and/or Kawashima procedure before operative scoliosis repair were included. Patients were excluded if they lacked preoperative cardiac care and/or sufficient medical history at our institution.

RESULTS

Twenty-three patients were included. The average age at surgery was 13.6 years (range, 5-23). Seventy percent of the cohort was female (16/23). The majority of patients underwent a Fontan before scoliosis surgery (20/23, 87%). Patients without intraoperative tranexamic acid (TXA) had a 67% complication rate (8/12) versus 36% (4/11) in those with intraoperative TXA (P = 0.29). There was a significant difference in estimated blood loss by weight (cc/kg) between non-TXA and TXA patients (P = 0.016). Twelve patients experienced complications (52%), all of which occurred postoperatively. There were no deaths, cerebrovascular events, adverse perioperative cardiac or hemodynamic complications, or wound infections. Using the Clavien-Dindo-Sink classification for postoperative complications, four patients had serious adverse events, including one permanent neurologic deficit.

CONCLUSION

Spinal surgery for scoliosis has been performed in selected patients with single ventricle physiology at a single institution without mortality for 25 years. Operative blood loss may be reduced by routine use of TXA. Complications occur most commonly in the postoperative period, and can include pleural effusion.Level of Evidence: 4.

Post-operative musculoskeletal outcomes in patients with coarctation of the aorta following different surgical approaches

BACKGROUND

The aim of this study was to examine range of motion and muscle function in the upper extremity and spine in patients with coarctation of the aorta (CoA) comparing different surgical approaches.

METHODS

From October 2017 to February 2019, 150 patients were assessed for inclusion. A total of 99 patients (n = 75 CoA, n = 24 control), were included and assessed regarding muscle function, arm length and circumference, and spinal and thoracic mobility.

RESULTS

There were significant differences between the right and left arm in patients with CoA, operated with the subclavian flap technique compared to controls in regards to shoulder flexion (p < 0.001), elbow flexion (p = 0.001), shoulder abduction (p = 0.02), handgrip strength (p = 0.01), length of upper arm (p < 0.001), lower arm (p < 0.001), and of whole arm (p < 0.001), circumference regarding upper arm (p = 0.001), lower arm (p < 0.001), and wrist (p < 0.001). Structural scoliosis was more frequent in patients who had undergone thoracotomy (25.4%) than patients who had not undergone a thoracotomy (5.9%, p = 0.04), and were often located in the thoracic part of the spine.

CONCLUSION

Patients with CoA operated on using the subclavian flap technique have impaired muscle function as well as reduced arm length and circumference. An increased rate of structural scoliosis was found in patients who underwent thoracotomy, in comparison with patients who had not undergone a thoracotomy. Further research is needed to determine whether muscle function impaired by surgical procedures can be improved with exercise.

Scoliosis after thoracotomy repair of esophageal atresia: a systematic review

Standard surgical repair of esophageal atresia/tracheoesophageal fistula (EA/TEF) is via a right posterolateral thoracotomy. A recognized complication is the later development of scoliosis. The prevalence and pathogenesis of secondary scoliosis are poorly understood. We, therefore, conducted a systematic review on this topic. All English language articles reporting incidence, outcomes and/or interventions for scoliosis in children after EA repair via thoracotomy were identified. Fourteen relevant articles published between 1969 and 2019 reporting 1338 children were included in the analysis. The aggregate prevalence of scoliosis among 937 children without congenital vertebral anomalies was 13%, but this figure varied widely between studies. Severity of scoliosis was documented in 181 children; eight children had a Cobb angle > 40° and 10 had undergone spinal surgery. The spinal curvature in affected individuals was dominantly or exclusively convex to the left. In conclusion, the reported prevalence of scoliosis varies widely but on average affects about one in eight children after open repair of EA/TEF. Most cases are mild and do not require intervention. It is currently uncertain whether secondary scoliosis is preventable by using meticulous thoracotomy techniques or thoracoscopic repair.Level of evidence IV.

Cyanotic Congenital Cardiac Disease and Scoliosis: Pre-Operative Assessment, Surgical Treatment, and Outcomes

OBJECTIVE

Congenital heart disease (CHD) is associated with the development of scoliosis. Improvements in cardiac care have extended survival of children with cyanotic CHD which possess a need for correction of scoliosis. There is limited information on spinal care for these patients. We present 3 patients with CHD who underwent surgical correction of scoliosis.

MATERIALS AND METHODS

We reviewed demographic and clinical data on patients with cyanotic CHD.

RESULTS

Patient 1 underwent posterior spinal fusion T3-L3 at the age of 16 years. He had a double inlet left ventricle and was treated with completion of a Fontan circulation. Hypotensive anaesthesia was used but he lost 3,000 mL of blood. The operative time was 370 min and most of the blood loss occurred in the second half of the procedure. Patient 2 underwent posterior spinal fusion T5-T12 when aged 14 years. She had transposition of the great vessels corrected over multiple surgeries. Hypotensive anaesthesia was used, she had blood loss of 300 mL, and the surgical time was 282 min. Patient 3 underwent posterior spinal fusion extending from T5-T12 when he was 17 years old. He had a double inlet left ventricle and was treated with completion of a Fontan circulation. Hypotensive anaesthesia was used, he had blood loss of 1,021 mL, and a surgical time of 342 min.

CONCLUSION

Scoliosis surgery in patients with complex cardiac disease may be indicated to treat progressive deformities which produce severe symptoms. A multidisciplinary approach including a spinal surgeon as well as a cardiologist, haematologist, respiratory paediatrician, and spinal anaesthetist can evaluate the general medical condition and weigh the benefits and risks of surgery. Deformity correction can be performed using a meticulous technique and has produced a series of satisfactory outcomes.

Thoracogenic spinal deformity: a rare cause of early-onset scoliosis

OBJECTIVESurgery for severe congenital defects, such as congenital diaphragmatic hernia, congenital heart defects, and tracheoesophageal disorders, are life-saving treatments for many infants. However, the incidence of scoliosis following thoracoabdominal surgery has been reported to range from 8% to 50%. Little is known about severe scoliosis that occurs after chest wall procedures in infants. The authors sought to determine the prevalence of thoracogenic scoliosis, disease severity, and need for scoliosis surgery in patients who underwent chest wall procedures in early childhood.METHODSA multicenter database of patients with early-onset scoliosis was queried to identify patients with a history of thoracogenic or acquired iatrogenic scoliosis. Patients with significant congenital spine deformities were excluded. Forty-one patients (1.6%) were noted to have thoracogenic scoliosis. Of these patients, 14 patients were observed; 10 received casts and/or braces; and 17 underwent treatment with rib-based distraction rods, Shilla procedures, or spine-based growing rod devices. Radiographs, complications, and patient characteristics were reviewed.RESULTSThe mean age at scoliosis diagnosis for the 41 patients was 6.0 years. The mean time to follow-up was 2.9 years (4.5 years in the 17 surgical patients). The mean preoperative coronal Cobb angle in the surgical group was 65° and improved to 47° postoperatively (p = 0.01). The mean Cobb angle for the nonoperative group was 31° initially and 32° at follow-up (p = 0.44). Among the 17 patients undergoing surgery for scoliosis, there were 13 complications in 7 patients, including a brachial plexus palsy following rib-based distraction rod placement. This resolved with revision of the rib hooks. There were no known complications in the nonoperative cohort.CONCLUSIONSSevere scoliosis can develop after thoracoabdominal surgeries during infancy. Further work is needed to understand the pathogenesis of scoliosis in this population so as to implement measures for prevention and early diagnosis and to guide appropriate treatment.

Surgical Treatment for Severe Scoliosis in Patients with Reduced Cardiorespiratory Function after Surgery for Congenital Heart Disease: A Report of Two Cases

Purpose

Congenital heart disease (CHD) is associated with an increased risk of scoliosis. The prognosis of scoliosis patients with CHD has improved because of advances in cardiac care. As a result, the frequency of surgery for scoliosis in this population has increased, although the risk of perioperative complications remains high. We treated two patients with CHD who underwent surgery for severe scoliosis. To avoid perioperative complications, we evaluated the preoperative cardiac status and anesthetic risks before posterior correction and fixation in both patients.

Methods

An expert anesthesiologist evaluated the anesthetic risk in each case, and an adequate reservoir of autologous blood was collected preoperatively. The patient in case 1 was at risk of significant blood loss and required extremely careful operative technique. The patient in case 2 had low cardiac output preoperatively. We therefore performed a thorough preoperative cardiac evaluation. Both patients were admitted to the intensive care unit postoperatively.

Results

Neither patient suffered serious complications, and both achieved favorable outcomes.

Conclusions

Appropriate surgical technique and teamwork among experts are the keys to success in patients with severe scoliosis and CHD.

Scoliosis in association with the 22q11.2 deletion syndrome: an observational study

OBJECTIVE

The 22q11.2 deletion syndrome (22q11.2DS) is the most common microdeletion syndrome in humans. It is characterised by wide phenotypic variability, including congenital heart disease (CHD), immunodeficiency and scoliosis. However, little is known regarding the prevalence and characteristics of scoliosis in patients with 22q11.2DS. The objective of this study is to assess the prevalence of scoliosis, its characteristics and the association with CHD in patients with 22q11.2DS.

DESIGN

This prevalence study is based on physical examination and questionnaires of the world's largest 22q11.2DS longitudinal collected database (n=1393, Children's Hospital of Philadelphia) and was augmented with the scoliosis prevalence based on radiography in a smaller cohort (cross-sectional, University Medical Center Utrecht).

PATIENTS

Patients with a laboratory-confirmed 22q11.2 deletion who visited the specialised outpatient clinics were considered for inclusion.

MAIN OUTCOME MEASURES

(1) The prevalence of scoliosis, (2) its association with CHD, and (3) the similarity between 22q11.2DS curve patterns and adolescent idiopathic scoliosis (AIS) curve patterns.

RESULTS

Within the Philadelphia cohort, the prevalence of scoliosis in patients older than 16 years (n=317) was 48% (n=152). A similar prevalence (49%) was shown for the younger Utrecht cohort (n=97). The occurrence of scoliosis was not associated with the presence of CHD. Sixty-three per cent of patients with scoliosis had a scoliotic curve pattern that resembled AIS.

CONCLUSIONS

Clinicians should be aware that scoliosis is highly prevalent (48%-49%) in association with 22q11.2DS, irrespective of other clinical features (eg, the presence of CHD). Furthermore, 22q11.2DS may provide insights into the causes of AIS.

Cardiac Risk Factors and Complications After Spinal Fusion for Idiopathic Scoliosis in Children

BACKGROUND

Cardiac risk factors pose challenges in pediatric posterior spinal fusion (PSF). Differences in risk according to etiology of cardiac disease are unclear. We investigated outcomes of PSF according to presence of congenital heart defect compared to cardiomyopathy.

METHODS

Elective PSF for idiopathic scoliosis in patients aged 0-18 y was identified in the 2012-2015 National Surgical Quality Improvement Program-Pediatric. Cardiac risk factors were classified as: no cardiac risk factors or minor cardiac risk factors without congenital heart defect; minor cardiac risk factors because of congenital heart defect; major cardiac risk factors because of congenital heart defect; major cardiac risk factors because of cardiomyopathy. Multivariable logistic regression compared surgical site infection, wound dehiscence, hospital length of stay ≥30 d, and unplanned readmission across these categories.

RESULTS

The analysis included 5395 girls and 1691 boys, aged 14 ± 2 y. Among these, 140 patients had minor cardiac risk factors because of congenital heart defect, 144 had major cardiac risk factors because of congenital heart defect, and 20 had major cardiac risk factors because of cardiomyopathy. Rates of any complication were significantly higher among patients with cardiomyopathy (40%) compared to patients with major cardiac risk factors because of congenital heart defect (10%), minor cardiac risk factors because of congenital heart defect, or other minor or no cardiac risk factors (5%; chi-square P < 0.001). In multivariable analysis of 6829 patients, cardiomyopathy predicted greater odds of unplanned readmission compared to no or minor cardiac risk factors (OR = 5.9; 95% CI: 1.8, 19.7; P = 0.004) and compared to major cardiac risk factors because of congenital heart defect (OR = 4.5; 95% CI: 1.1, 17.6; P = 0.032).

CONCLUSIONS

Cardiomyopathy is a rare but significant risk factor for complications after pediatric PSF, whereas congenital heart defects did not independently contribute to risk of complications after this procedure.

CORRECTION OF SCOLIOSIS IN CHILDREN WITH CONGENITAL HEART DEFECTS

ABSTRACT Objective: The purpose of this study was to evaluate the results of treatment in patients with deformities of the spine and congenital heart defects. Methods: Eighty-seven children aged 10 to 18 years old (27 males and 60 females) were treated surgically due to scoliosis. Results: The minimum angle of the curvature arc was 68°. The deformity parameters were evaluated on the basis of the spine x-ray. In patients with combined and rigid forms of scoliosis, correction was performed using dorsal segmental instrumentation. Where there was rigid deformity and it was not possible to perform a front release according to the somatic indications, a one-stage dorsal correction was performed in conditions of halo traction in combination with SPO or Ponte osteotomy. In patients with moderate impairment of blood circulation in the presence of rigid curvature of the main arch, two-stage surgery was performed, with ventral release at the apex of deformation, followed by halo traction. As a second stage, dorsal correction and stabilization of the spine was performed. In the operated patients, the mean correction with dorsal instrumentation was 64.2%. An average of 12 vertebrae were included in fusion. The degree of apical vertebral body derotation was found to be up to 30% of the initial rotation. With the use of hybrid and hook systems, the average degree of derotation was 18%. According to the physical examination within one year, the parameters of the function of external respiration and bronchial permeability increased significantly, from 10% to 30%, which indicates the functional nature of changes in cardiorespiratory disorders. Level of evidence IV, Case series.

Prevalence of and Predictive Factors for Scoliosis After Surgery for Congenital Heart Disease in the First Year of Life

Background

The surgical treatment of congenital heart disease is reported to be associated with a high prevalence of scoliosis, although the detailed etiology is unknown. Surgical interventions involving the rib cage are considered to increase the risk of scoliosis. However, whether the cardiac condition or the procedure performed makes patients more susceptible to the development of spinal deformity is controversial.

Methods

The present study included 483 patients who underwent surgery for the treatment of congenital heart disease with use of procedures involving the immature rib cage (sternotomy and/or thoracotomy) during the first year of life, followed by the evaluation of standing chest radiographs at ≥10 years of age. Patients with congenital spinal deformity and potential neuromuscular disease were excluded. The prevalence of and predictive factors for scoliosis were evaluated. The presence of scoliosis (Cobb angle ≥10° to <20°, ≥20° to <30°, ≥30° to <45°, ≥45°), the convex side of the curve, and the location of the curve were evaluated radiographically. Potential predictive factors that were analyzed included the age at the time of surgery, surgical approach, use of cardiopulmonary bypass, postoperative heart failure and/or cyanosis, New York Heart Association (NYHA) class, cardiomegaly, and age at the time of radiography.

Results

The mean age at the time of surgery was 112 days, and the mean age at the time of radiography was 14.4 years. The prevalence of scoliosis was 42.4%, and the prevalences of ≥10° to <20°, ≥20° to <30°, ≥30° to <45°, and ≥45° scoliosis were 31.7%, 5.8%, 2.5%, and 2.5%, respectively. Three patients underwent surgery for the treatment of progressive scoliosis. Multivariate analysis indicated that the predictive factors were female sex, left thoracotomy, bilateral thoracotomy, NYHA class, and age at the time of radiography for ≥10° scoliosis; cardiomegaly, NYHA class, and age at the time of radiography for ≥20° scoliosis; cardiomegaly, number of surgical procedures, and age at the time of radiography for ≥30° scoliosis; and cardiomegaly for ≥45° scoliosis. Age at the time of radiography was a predictor of <45° scoliosis; however, the relative association was small.

Conclusions

Surgery for the treatment of congenital heart disease during the first year of life was associated with a high prevalence of scoliosis (≥40%). While female sex was one of several predictors of ≥10° scoliosis, cardiomegaly was the sole predictor of ≥45° scoliosis.

Level of Evidence

Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Posterior spinal fusion for scoliosis after Fontan procedure: A case series

BACKGROUND

As the surgical treatment of scoliosis after a Fontan procedure is very challenging due to the risk of various perioperative complications, case reports are scarce. We herein describe three patients who were successfully treated for scoliosis following a Fontan procedure and discuss their clinical and radiological outcomes.

METHODS

We retrospectively reviewed three cases of scoliosis treated by posterior spinal fusion after a Fontan procedure.

RESULTS

Mean preoperative major curve Cobb angle was 83.7°, mean surgical time was 233.0 min, and mean blood loss was 1167 g. The mean correction rate of the major curve was 48.0%. Surgical outcome as evaluated by Scoliosis Research Society-22 patient questionnaires revealed acceptable results without any severe complications.

CONCLUSIONS

Corrective surgery for scoliosis after a Fontan procedure becomes a stronger option if cardiac insufficiency is prevented during the perioperative period and a conservative plan is carried out with minimal invasiveness and operation time.

Risk Factors for Development and Progression of Scoliosis After Pediatric Cardiothoracic Operations

BACKGROUND

The purpose of this study was to determine the incidence and risk factors for the development and rate of progression of scoliosis and moderate/severe scoliosis in patients undergoing cardiothoracic operations (CTOs).

METHODS

Included were patients aged younger than 12 years who underwent CTOs in 1995 to 2006 with a preoperative chest roentgenogram (CRG) and a CRG at least 8 years after CTOs. Scoliosis and moderate/severe scoliosis were defined as a Cobb angle of 10 degrees or more and an angle of 25 degrees or more or the need for surgical intervention, respectively. Risk factors were analyzed using nonparametric and parametric survival analyses. For patients that developed scoliosis, progression rate was analyzed using linear regression models for repeated measures using CRG at 6-month intervals.

RESULTS

The study included 871 patients (380 girls [44%]). Median CRG follow-up was 11 years (interquartile range, 9 to 13 years). Overall 10-year incidence of scoliosis and moderate/severe scoliosis was 12% and 3%, respectively. Independent predictors for scoliosis included female sex (hazard ratio [HR], 1.7; 95% confidence interval [CI], 1.2 to 2.5), syndrome (HR, 1.9; 95% CI, 1.3 to 2.8), and isolated developmental delay (HR, 2.4; 95% CI, 1.4 to 4.2). For development of moderate/severe scoliosis, independent risk factors included female sex (HR, 2.8; 95% CI, 1.4 to 5.8), syndrome (HR, 3; 95% CI, 1.5 to 6.1), isolated developmental delay (HR, 3.1; 95% CI, 1 to 9.2]), and prematurity for neonates/infants (HR, 2.3; 95% CI, 1 to 5.2). Rate of angle progression was 0.17 times the current angle per year. Age, syndrome, and developmental delay were risk factors for angle progression.

CONCLUSIONS

Patients that undergo pediatric CTO, regardless of the operative approach, are at increased risk for development of scoliosis and moderate/severe scoliosis. Long-term follow-up of these patients is warranted, in particular for girls and patients with genetic syndromes or developmental delay.

The use of pre-operative halo traction to minimize risk for correction of severe scoliosis in a patient with Fontan circulation: a case report and review of literature

PURPOSE

Patients with Fontan circulation have increased cardio-respiratory risk during major spinal surgery. We report a case of severe scoliosis with a Cobb angle of 123.3° in a 16-year-old boy with Fontan circulation treated with single stage posterior segmental pedicle screw instrumentation and fusion.

METHODS

Case report.

RESULTS

The use pre-operative halo-ring traction for a duration of 6 weeks in this case lead to improvement in cobb angle from 123.3°, kyphotic angle 87.1° to cobb angle of 78.0°, kyphotic angle 57.2° (on bending and stress films). The operation was completed in 150 min, blood loss 1050 ml (25 ml/kg), and cell salvage of 490 ml. He was immediately extubated post correction, but monitored in ICU for a day. Total length of stay was 8 days without any perioperative morbidity or allogeneic blood transfusion. Final post-operative radiograph showed a cobb angle of 44.2°, kyphotic angle 22.8°. Follow up at 27 months showed solid union with no significant loss of correction.

CONCLUSION

From this case experience, pre-operative halo traction is a useful surgical strategy in patients with Fontan circulation with severe kyposcoliosis to achieve adequate correction without additional osteotomies to minimize the risk of surgical correction.

Scoliosis surgery in children with congenital heart disease

STUDY DESIGN

Retrospective cohort study.

OBJECTIVE

To describe preoperative evaluation, anesthetic and perioperative management, and complications in patients with congenital heart disease (CHD) who underwent surgery to correct a spine deformity.

SUMMARY OF BACKGROUND DATA

Patients with surgically palliated or repaired CHD may have nearly normal circulation or may have important residual abnormalities that affect the planning and conduct of surgery to correct a spine deformity.

METHODS

We examined the records of 21 patients with spine deformity who had previous surgical intervention for CHD. Three types of spine surgery and instrumentation were examined, posterior spinal fusion with instrumentation (PSFI), growing rod (GR) instrumentation, and vertical expandable prosthetic titanium rib instrumentation (VEPTR). To objectify the degree of preoperative cardiac physiological derangement, patients were classified into 3 groups: single ventricle physiology and Fontan circulation (S), two ventricles with no residual abnormal cardiac physiology condition (2N), and two ventricles with residual cardiac physiology problem (2R).

RESULTS

Subjects were 8 boys and 13 girls with mean age of 11.1 ± 5.2 years. Sixteen patients underwent surgery to correct scoliosis, 1 to correct kyphosis, and 4 did not undergo surgery. Total number of surgical procedures was 23 (16 PSFI, 5 GR, and 2 VEPTR). On the basis of cardiac physiology, 2 patients belonged 2N, 11 were 2R, and 8 were group S. Mean estimated blood loss was 1685 mL during PSFI, 515 mL during GR, and 150 mL during VEPTR. Mean volume of blood transfusion was 44 mL/kg for PSFI, 19 mL/kg for GR, whereas no transfusion was administered during VEPTR. Median intensive care unit stay was 2 days ranging from hours to 78 days. Median hospital length of stay was 7 days ranging from 3 to 93 days. There were no deaths.

CONCLUSION

Given meticulous multidisciplinary planning and execution, major spine surgery can be safely and successfully performed in patients with significant residua of CHD.

LEVEL OF EVIDENCE

4.

Spinal surgery in the univentricular heart--is it viable?

INTRODUCTION

The management of patients with Fontan physiology who undergo scoliosis surgery is difficult. The purpose of this article was to describe our experience in the management of patients with Fontan circulation undergoing spinal surgery for correction of scoliosis.

MATERIALS AND METHODS

This was a retrospective study including patients with Fontan physiology who underwent spinal orthopaedic surgery. Anaesthetic management, post-operative complications, paediatric intensive care unit and total hospital stay, and the need for blood transfusions were analysed.

RESULTS

We identified eight children with Fontan physiology who had undergone spinal surgery from 2000 to 2010. All patients were receiving cardiac medications at the time of spinal surgery. The mean age at surgery was 14.8 years (range 12-21). In all, three patients needed inotropic support with dopamine (3, 5, and 8 μg/kg/min), which was started during surgery. During the immediate post-operative period, one patient died because of hypovolaemic shock caused by massive bleeding and dysrythmia. Mean blood loss during the post-operative period was 22.2 cc/kg (7.8-44.6). Surgical drainages were maintained for a mean time of 3 days (range 1-7). The mean hospital stay was 9.2 days (range 6-19). Pleural effusions developed in two patients. On follow-up, one patient presented with thoracic pseudarthrosis and another with a serohaematoma of the surgical wound.

CONCLUSIONS

Spinal surgery in patients with Fontan circulation is a high-risk operation. These patients must be managed by a specialised team.

Minimally invasive resynchronization pacemaker: a pediatric animal model

PURPOSE

We developed a minimally invasive epicardial pacemaker implantation method for infants and congenital heart disease patients for whom a transvenous approach is contraindicated. The piglet is an ideal model for technical development.

DESCRIPTION

In 5 piglets we introduced a needle through subxiphoid approach under thoracoscopic guidance, inserting a wire into the pericardial space. Pacing leads were affixed to the left ventricular free wall and left atrial appendage. After verifying functionality with atrial and ventricular pacing and sensing, animals were euthanized. Pacemaker monitoring occurred daily for 4 days in the fifth animal.

EVALUATION

Through minimally invasive pericardial access, we directly visualized and fixated pacing leads to the left ventricle and left atrial appendage, successfully pacing atrium and ventricle. Epicardial structures were visualized. One piglet had contralateral pneumothorax, which resolved with needle decompression. No other adverse events occurred.

CONCLUSIONS

Minimally invasive epicardial pacemaker implantation in an infant model is feasible and effective. This innovation may be of value for pacing and resynchronization in infants and congenital heart disease patients. Survival studies with permanent generator implantation are under way.

The surgical management of spinal deformity in children with a Fontan circulation

The management of spinal deformity in children with univentricular cardiac pathology poses significant challenges to the surgical and anaesthetic teams. To date, only posterior instrumented fusion techniques have been used in these children and these are associated with a high rate of complications. We reviewed our experience of both growing rod instrumentation and posterior instrumented fusion in children with a univentricular circulation.

Six children underwent spinal corrective surgery, two with cavopulmonary shunts and four following completion of a Fontan procedure. Three underwent growing rod instrumentation, two had a posterior fusion and one had spinal growth arrest. There were no complications following surgery, and the children undergoing growing rod instrumentation were successfully lengthened. We noted a trend for greater blood loss and haemodynamic instability in those whose surgery was undertaken following completion of a Fontan procedure. At a median follow-up of 87.6 months (interquartile range (IQR) 62.9 to 96.5) the median correction of deformity was 24.2% (64.5° (IQR 46° to 80°) vs 50.5° (IQR 36° to 63°)).

We believe that early surgical intervention with growing rod instrumentation systems allows staged correction of the spinal deformity and reduces the haemodynamic insult to these physiologically compromised children. Due to the haemodynamic changes that occur with the completed Fontan circulation, the initial scoliosis surgery should ideally be undertaken when in the cavopulmonary shunt stage.

Cite this article: Bone Joint J 2014;96-B:94–9.

Scoliosis after thoracotomy/sternotomy in children with congenital heart disease

CONTEXT

Congenital heart disease (CHD) patients bear a higher risk of scoliosis during their lifetime compared to their normal counterparts. On the other hand, operation on chest wall has been shown to increase the risk of scoliosis. However, the data are inconclusive. The present retrospective analysis is undertaken to determine the frequency of post-thoracotomy/sternotomy scoliosis in children with CHD.

MATERIALS AND METHODS

One hundred and eighty children with CHD who underwent thoracotomy/sternotomy and had a minimum followup of 3 years in a teaching center from 1997 to 2010 were recruited. After operation, all the patients were regularly examined for the development of scoliosis. 102 patients underwent thoracotomy and 78 sternotomy. Student's t test, Chi-square test, Fisher's exact test were used for statistical analyses.

RESULTS

Eighty-eight males and 92 females with a mean age of 9.95 ± 2.31 (range: 5-15) years were enrolled. The mean age at operation was 2.59 ± 1.66 (range: 0-9) years and the mean follow-up period was 7.36 ± 2.12 (range: 5-13) years. Scoliosis was confirmed in two patients (1.1%): 1 (1%) in the thoracotomy group (a 12-year-old female operated 2 years earlier with a spinal 22° convexity to the right and 78° kyphosis) and another (1.1%) in the sternotomy group (an 8-year-old female operated during her neonatal period with a spinal 23° convexity to the left).

CONCLUSION

Scoliosis is not a common finding among the operated children with CHD in our center.

Outcomes of spinal fusion in children with congenital heart disease

BACKGROUND

The children with congenital heart disease (CHD) have an increased risk of developing scoliosis. Many children with CHD may benefit from surgical intervention for scoliosis. However, there is uncertainty about the safety of spinal fusion in children with heart disease. The purpose of this study is to assess whether spinal fusion is safe and effective for children who have CHD.

METHODS

We reviewed all the cases of children with CHD undergoing first-time spinal fusion for spinal deformity at Mayo Clinic between August 1976 and June 2008. Data were abstracted regarding cardiac history, major Cobb angle, type of spinal fusion (anterior, posterior, or both), intraoperative and postoperative complications, mortality, and follow-up.

RESULTS

Sixty-four children under the age of 18 (64% female patients; mean age=11.5 y) were included in the study. The most common types of CHD were pulmonary atresia with ventricular septal defect and tetralogy of Fallot. Sixty-three percent of all patients had had prior cardiac surgery; 22% were cyanotic at the time of spinal fusion. Nine patients had single-ventricle physiology; 5 of whom had had Fontan palliation. Nine patients had pulmonary hypertension. Posterior fusion alone was carried out for 69% of the patients. Spinal instrumentation was used in 70% of cases. Average anesthesia time was 7.3 hours. Mean hospital stay was 9 days. Eighteen children (30%) required prolonged intubation of 1 day or longer. Prolonged intubation was more common in patients with a larger Cobb angle and in patients with pulmonary hypertension. Postoperative complications occurred in 27% of all patients and were more common in the patients with pulmonary hypertension. One child died postoperatively from a hemorrhage because of an arterial-esophageal fistula unrelated to her spinal fusion.

CONCLUSIONS

Spinal fusion in children with CHD is generally safe and effective. Children with pulmonary hypertension are at higher risk for complications from spinal fusion.

LEVEL OF EVIDENCE

Level IV--Case Series.

Natural history of spinal anomalies and scoliosis associated with esophageal atresia

OBJECTIVE

Clinical characteristics of spinal deformities that commonly occur in patients with esophageal atresia (EA) are unclear. The objective of this study was to assess the incidence and natural history of spinal anomalies and scoliosis in patients with EA.

METHODS

A population-based cohort of 100 adults who had an operation for EA in our hospital were examined clinically and radiographically for spinal deformities. The results were compared with data obtained from normal population-based controls.

RESULTS

Vertebral anomalies were observed in 45 patients, predominating in the cervical spine in 38 patients. Any additional anomaly was the most significant risk factor (odds ratio [OR]: 27 [95% confidence interval (CI): 8-100]) for the occurrence of vertebral anomalies. Scoliosis of >10 degrees was observed in 56 patients, >20 degrees in 11 patients, and >45 degrees in 1 patient. The risk for scoliosis of >10 degrees was 13-fold (OR: 13 [95% CI: 8.3-21]), and the risk for scoliosis of >20 degrees was 38-fold (OR: 38 [95% CI: 14-106]) compared with those in the normal population. Thoracotomy-induced rib fusions (OR: 3.6 [95% CI: 0.7-19]) and other associated anomalies (OR: 2.1 [95% CI: 0.9-2.9]) were the strongest predictive factors for scoliosis. The general clinical course of spinal deformities was mild, and none of the patients had undergone spinal surgery.

CONCLUSIONS

The risk of scoliosis is 13-fold after repair of EA in relation to general population. Nearly half of the patients have vertebral anomalies predominating in the cervical spine. Most of these deformities were not diagnosed primarily or during growth. Spinal surgery is rarely indicated.

Scoliosis in pediatric patients: comorbid disorders and screening

Scoliosis is one of the most commonly encountered pediatric spinal deformities. Knowledge of comorbid disorders associated with scoliosis is required in order to rule out other serious conditions. A thorough knowledge of the clinical scenarios associated with each of these disorders will help guide the pediatric practitioner in their work-up of associated conditions and possible further referrals. The aim of this review is to discuss the comorbidities associated with scoliosis and review appropriate screening tools aiding diagnosis.

Scoliosis in patients with aortic coarctation and patent ductus arteriosus: does standard posterolateral thoracotomy play a role in the development of the lateral curve of the spine?

The aim of this study was to determine the influence of lateral thoracotomy on the development of scoliosis in subjects undergoing repair of coarctation of the aorta (CoA) and patent ductus arteriosus (PDA). A group of 133 patients with CoA and PDA was evaluated. Forty-five patients with CoA and 38 with PDA underwent surgery using standard posterolateral thoracotomy (operative group), whereas 12 patients with CoA and 31 with PDA were treated using balloon dilatation and stent or coil implantation (nonoperative group). A spinal examination, together with the evaluation of chest and spinal roentgenograms, was conducted. Among the operated patients, 62% of those with CoA and 55% of those with PDA had clinical scoliosis. In the nonoperated patients, scoliosis was present in only 25% of those with CoA and 16% of those with PDA. Scoliosis ranged between 10 degrees and 42 degrees . In 89% of the operated patients with CoA and 76% of those with PDA the curve was thoracic; in 46% of the CoA group and 57% of the PDA group the curve was left-sided. All curves were right-sided in nonoperated subjects. Scoliosis in the operated group was higher in male than in female subjects (63% vs. 60% in CoA and 86% vs. 37% in PDA). The prevalence of scoliosis after standard posterolateral thoracotomy was significantly higher than after nonsurgical treatment methods in the CoA and PDA groups as well as in the general population. The rate of single thoracic and the rate of left-sided thoracic curves in patients after thoracotomy is higher than in nonoperated patients or in those with idiopathic scoliosis. The rate of scoliosis after thoracotomy is higher in male than female patients, especially after thoracotomy for PDA.

Complication of surgery for scoliosis in children with surgically corrected congenital cardiac malformations

INTRODUCTION

There is a high incidence of scoliosis in patients who have undergone cardiothoracic surgery for correction of congenital cardiac disease, this risk being 10 times higher than in the general population.

MATERIALS AND METHODS

So as to analyse the surgical and postoperative complications, we designed a retrospective study to include every child who underwent spinal orthopaedic surgery, and who had previously undergone cardiothoracic surgery because of a congenital cardiac malformation. We excluded those patients who had syndromes associated with the development of scoliosis.

RESULTS

We identified 18 patients with surgically treated congenital cardiac disease who had undergone surgery for scoliosis over a period of 7 years. This group came from a total number of 87 patients undergoing spinal fusion over the same period. Of those with congenitally malformed hearts, 61% had acyanotic lesions, with ventricular septal defect being the most frequent single lesion, present in 40%. All the patients needed blood transfusions during the surgery, with aprotinin used in 73% to reduce the bleeding, and inotropes needed for 4 children. During the immediate postoperative period, 1 patient died in the first 24 hours, while 7 (39%) had different complications, pneumonia in 4, pleural effusions in 2, and rhabdomyolysis in the other, as opposed to a rate of complications of 27% in patients without heart disease.

CONCLUSION

The surgical and postoperative complications in these patients depend on the specific cardiac lesion. A multidisciplinary team with experience in the treatment of congenitally malformed hearts is essential for appropriate management of these patients.

Retrospective study on the development of spinal deformities following sternotomy for congenital heart disease

STUDY DESIGN

Retrospective review with a minimum of 3 years of follow-up.

OBJECTIVE

We hypothesize that following median sternotomy there may be an increase incidence of both sagittal and coronal spinal deformity. We also think that heart size and a cyanotic cardiac condition are also risk factors for development of spinal deformity. The purpose of this study was to determine the incidence and characteristics of spinal deformity in patients following sternotomy for congenital heart disease.

SUMMARY OF BACKGROUND DATA

Patients with congenital heart disease are at an increased risk to develop scoliosis.

METHODS

A total of 108 patients underwent a median sternotomy for the treatment of congenital heart disease and met inclusion criteria. The medical record was reviewed to gather demographic data and medical and surgical history. Serial chest and spine radiographs were reviewed.

RESULTS

Scoliosis developed in 28% of the patients (10 males, 20 females). The mean follow-up was 13 years (range, 3-26 years). The mean coronal Cobb angle was 25 degrees (range, 11 degrees-88 degrees). Of these, 7 patients presented with curves of > or = 30 degrees. The mean age at diagnosis of scoliosis was 14 years (range, 2-33 years). A kyphotic deformity developed in 22% (24 patients). In patients with scoliosis, the mean sagittal kyphosis was 34 degrees (range, 2 degrees-73 degrees). Patients with a cyanotic cardiac condition had a trend toward severe scoliosis. There was no correlation between the development of scoliosis or kyphosis and the age at time of procedures, number of surgeries, gender, or heart size.

CONCLUSION

The risk of developing scoliosis in children with congenital heart disease is more than 10 times that of idiopathic scoliosis. Spinal deformities, including scoliosis and/or kyphosis, were found in 34% of the patients. The sagittal alignment in scoliosis patients tends toward kyphosis.

Therapy Insight: orthopedic complications after solid organ transplantation in childhood

Several factors, such as immobilization, metabolic bone disease and immunosuppressive drugs, can compromise the quality of bone in children who have undergone solid organ transplantation. In contrast to adults, decreased bone mineral density has been reported in only a small proportion of pediatric transplant patients, and the relationship between low bone mineral density and fracture risk has not been established in children. Nevertheless, fractures, scoliosis, and joint and spinal degeneration are common in patients who received solid organ grafts as children. Avascular bone necrosis occurs infrequently in this patient population. Future studies should evaluate the effects of the underlying disease, transplantation and immunosuppression on the metabolism of bone and cartilage. On the basis of our own clinical experience and literature review, the growing spine of children who have received transplants should be continuously evaluated, and follow-up of bone mineral density is indicated. By contrast, routine MRI of the joints seems unnecessary.

Surgical correction of developmental scoliosis following cardiac transplantation: case report

STUDY DESIGN

Case report.

OBJECTIVE

To present a pediatric patient who underwent successful 2-stage anterior and posterior scoliosis surgery 20 months after cardiac transplantation.

SUMMARY OF BACKGROUND DATA

Cardiac transplantation has increased the life expectancy in children with end-stage cardiac failure caused by congenital heart disease or cardiomyopathy. Scoliosis is commonly associated with congenital cardiac disease. Previous reports have suggested that anterior scoliosis surgery is contraindicated after heart transplantation.

METHODS

We describe the case of a 13-year-old patient who underwent staged anterior and posterior spinal arthrodesis to correct a severe thoracic developmental scoliosis.

RESULTS

The 2 procedures were performed 1 week apart. Following the first stage, pulmonary edema had developed, which required reintubation and administration of diuretics. Significant blood loss occurred during the posterior spinal fusion. The patient had a satisfactory correction of her scoliosis and made a good recovery. Three years after surgery, she had no complaints of her back and had a solid spinal fusion.

CONCLUSIONS

Elective anterior and posterior spinal arthrodesis can be safely performed in cardiac transplant recipients with severe developmental scoliosis. This procedure can achieve optimum correction of the curvature and a successful outcome without long-term medical or technical complications.

Scoliosis after solid organ transplantation in children and adolescents

The occurrence of scoliosis in children after solid organ transplantation is not known. A total of 196 children, which is 93% of patients surviving kidney, liver and heart transplantation in our country, participated in a cross-sectional survey. All children were screened for rib hump, and those with clinically significant hump (over 6 degrees ) underwent radiographs of the spine. The occurrence of scoliosis was compared to data obtained from a previously published comparison group. Forty-three (21.9%) of the patients had scoliosis greater than 10 degrees , and 21 (10.7%) of them had curves greater than 20 degrees . The RR (95% CI) for scoliosis needing treatment (over 20 degrees ) was 17.0 (6.75-42.7) in the patients as compared with control population. The occurrence of scoliosis was 17.9% of the kidney, 13.6% of the liver and 51.7% of the heart transplant patients (p < 0.001). In a logistic regression model, heart transplantation (OR (95% CI) 7.27 (2.62-20.2)) and growth hormone treatment (3.98 (1.77-8.94)) were most significant risk factors for scoliosis. The risk of scoliosis is increased in patients with solid organ transplantation. Pediatricians treating these patients should be aware of this increased risk to diagnose early curves and to refer these patients to an orthopedic surgeon.