ObjectiveTo investigate the clinical efficacy of towel clamp ulna olecranon skeletal traction combined with different percutaneous Kirschner wire needle fixation methods for the treatment of children with irreducible supracondylar fracture of humerus. MethodsThe clinical data of 91 children with irreducible supracondylar fracture of humerus were retrospectively analyzed, and 42 children treated with towel clamp ulna olecranon skeletal traction combined with percutaneous lateral Kirschner wire needle fixation belonged to group A, while 49 children treated with towel clamp ulna olecranon skeletal traction combined with percutaneous lateral-medial cross Kirschner wire needle fixation belonged to group B. The Baumann angle, carrying angle, and the Mayo elbow joint function score of the affected limb before treatment, 3 and 6 months after treatment, and at the last follow-up were compared between children of the two groups. The recovery of elbow joint at 3 and 6 months after treatment, and at the last follow-up were evaluated in children of both groups. The fracture healing time, length of hospital stay, and occurrence of complications were compared between children of the two groups. ResultsAfter 3 and 6 months of treatment, and at the last follow-up, the Baumann angle in the two groups was smaller as compared with before treatment, and the carrying angle, Mayo elbow joint function score were increased as compared with before treatment (P＜0.05), but no statistically significant difference in the Baumann angle, carrying angle, and Mayo elbow joint function score at various time points was found between the two groups (P＞0.05). After 3 and 6 months of treatment, and at the last follow-up, the excellent and good rate of elbow joint function recovery in children of the two groups exhibited no statistically significant difference (P＞0.05). There was no statistically significant difference in fracture healing time, length of hospital stay, incidence rate of postoperative fracture redisplacement between the two groups (P＞0.05). The incidence rate of postoperative ulnar nerve injury in group B was higher than that in group A (P＜0.05). ConclusionTowel clamp ulna olecranon skeletal traction combined with percutaneous lateral Kirschner wire needle fixation or combined with percutaneous lateral-medial cross Kirschner wire needle fixation for the treatment of children with irreducible supracondylar fracture of humerus can both ameliorate the Baumann angle and carrying angle of the affected limb, and promote the recovery of elbow joint function, exerting equivalent clinical efficacy. However, the former has a lower incidence rate of concomitant ulnar nerve injury, with a superior safety.

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