Quantitative summary of the papers related to magnetically controlled growing rod for severe pediatric scoliosis.
| Characteristics | Description (after systematic review) |
|---|---|
| Papers included | 6 papers13,15,17,22-24 |
| Level of medical evidence | All Level IV of medical evidence for therapeutic studies44 |
| Patients | N=68 patients, mean=11.33 patients/study (1-34) |
| Follow-up | Mean=16.9 months (2.5-36 months) |
| Age | Mean age=8.38 years (3-14 years old) |
| Gender | Male = 32/68 (47.1%) patients, Female = 36/68 (52.9%) patients |
| Pathological classification of scoliosis5 | Main type: n=68 Idiopathic = 26 (38.23%) Neuromuscular = 36 (52.94%) Congenital = 6(8.82%) |
| Surgical technique regarding rod construct | Dual-rod (DR) n=65 43 (66.15%) Single-rod (SR) 22 (33.84%), Information available = 65/68 (95.58%) of the cases |
| Distractions | Mean interval = 55.33 days (1-135), Mean distraction per episode = 3 mm (1.5-4.5) |
| Preoperative curve, scoliogram | Coronal plane Cobb angle=67.4° Sagittal plane Cobb angle=50.6° Data available for comparison = 83.33% (5/6) of the articles Regarding the rod construct=DR Coronal plane Cobb angle=65.9° SR Coronal plane Cobb angle=69.6°, (p=0.1209) |
| Latest follow-up postoperative curve, scoliogram | Coronal plane Cobb angle=39.1°=47.75% of final correction, Sagittal plane Cobb angle=42.4°=16.21% of final correction Regarding the rod construct* DR Coronal plane Cobb angle=36.8°=44.16% of final correction SR Coronal plane Cobb angle=43.0°=38.22% of final correction (p=0.0007) |
| Preoperative T1-S1 spinal length, scoliogram | 300.4 mm Data available for comparison=66.66% (4) of the articles Regarding the rod construct*=DR=298.7 mm, SR=303.5 mm (p=0.0052) |
| Latest follow-up postoperative T1-S1 spinal length, scoliogram | 345.3 mm 35.8 mm=13.57% of T1-S1 total lengthening 2.05 mm/month Regarding the rod construct DR=347.0 mm 48.3 mm=13.92% of T1-S1 total lengthening 2.8 mm/mo SR=342.3 mm 38.8 mm=10.48% of T1-S1 total lengthening 2.29 mm/month (p=0.0042) |
| Postoperative complications | Complication rate= 21/68 (30.88%) of the patients Regarding the rod construct, n=36= DR = 36 (25%) Wound infection or healing problem= 36 (2.77%) Prominent implant= 3 (8.33%) Loss of distraction= 3 (8.33%) Rod breakage= 1 (2.77%) Implant pull-out= 1 (2.77%) Specified cases for comparison= (36/43) 83.72% of the patients SR, n=19= 6 (31.57%) (p=0.7516) Wound infection or healing problem= 2 (10.52%) (p=0.2716) Prominent implant=0 (p=0.5437) Loss of distraction, n=19= 2 (10.52%) (p=1.0000) Rod breakage= 2 (10.52%) (p=0.2716) Implant pull-out = 0 Specified cases for comparison= (19/22) 86.36% of the patients (p=1.0000) |
N - number, DR - dual-rod, SR - single-rod