Objective:

To analyze the effect of multi-track mini single arm external fixation and plate internal fixation in the treatment of missed Monteggia fracture in children.

Approach:

Key Findings:

• No statistical difference in elbow motion before surgery between groups (p > 0.05).
• External fixation group had shorter operation duration (97.7 ± 4.9 min) and less volume (47.4 ± 6.4 mL) compared to internal fixation group (132.8 ± 8.5 min, 70.3 ± 16.1 mL) with p < 0.05.
• At 12 months, elbow flexion (127.8 ± 5.9° vs 121.6 ± 7.1°), forearm pronation (81.2 ± 3.3° vs 73.2 ± 5.1°), and supination (84.2 ± 3.2° vs 80.1 ± 5.4°) were significantly better in the external fixation group (p < 0.05).
• Mayo score for elbow function was higher in the external fixation group (92.0 ± 7.1) compared to the internal fixation group (86.7 ± 9.8) with p < 0.05.
• No significant difference in osteotomy healing time between groups (p > 0.05).
• Overall complication rates were higher in the external fixation group (30.0%) compared to the internal fixation group (41.7%), but not statistically significant (p > 0.05).

Interpretation:

Limitations:

• Small sample size of 22 patients.
• Retrospective study design may introduce bias.

Conclusion:

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