Relationship between postoperative complications and fibular integrity in congenital pseudarthrosis of the tibia in children
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This study aimed to investigate the relationship between postoperative complications and fibular integrity in congenital pseudarthrosis of the tibia (CPT) in children.
A retrospective study was performed in 59 patients with Crawford type IV CPT who were treated with combined surgical technique from 2007 to 2011. The patients were divided into two groups, the CPT with fibular pseudarthrosis (group A) and CPT with intact fibula groups (group B), on the basis of fibula status after the union of CPT. The incidence rates of refracture, ankle valgus, tibial valgus, and limb length discrepancy in the two groups were investigated.
In group A, 14 (36.8%) cases had refracture, 30 (78.9%) had ankle valgus; 27 (71%) exhibited tibial valgus with an average tibial valgus of 7° (6°-20°), and 24 (63.2%) had limb length discrepancy with an average limb length of 1.26 cm (0.6-4.4 cm). In group B, 2 (9.5%) cases had refracture, 11 (52.4%) had ankle valgus, 8 (42.9%) had tibial valgus with an average tibial valgus deformity of 2.9° (6°-13°), and 13 (61.9%) had limb length discrepancy with an average limb length of 1.48 cm (0.5-5 cm). Significant difference in refracture and ankle valgus was found between groups A and B (P<0.05).
After the union of CPT, patients with fibular pseudarthrosis showed higher incidence of refracture and ankle valgus than those with intact fibula. Attention should be paid to the presence of fibular pseudarthrosis when managing CPT.
Keywordsbone lesion complication congenital pseudarthrosis of the tibia fibula status pseudarthrosis
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