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Year : 2020  |  Volume : 6  |  Issue : 2  |  Page : 126-130

Acute ulnar osteotomy versus gradual distraction by external fixator to correct missed monteggia type 1 fracture-dislocation; A comparative study

Department of Orthopedics, Unit of Limb Reconstruction and Pediatric Orthopedics, Tanta School of Medicine, Tanta University, Tanta, Egypt

Correspondence Address:
Dr. Abdelhakim Ezzat Marei
Department of Orthopedics, Unit of Limb Reconstruction and Pediatric Orthopedics, Tanta School of Medicine, Tanta University, Tanta
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2455-3719.305864

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Background: Monteggia fracture-dislocations are complex injuries. These injuries, especially neglected ones, remain a challenge for orthopedic surgeons. The aim of this study is to compare the results of acute and gradual ulnar lengthening osteotomies in treating chronic Monteggia fractures in children. Patients and Methods: The study includes two groups of patients, treated at our institution in the period from April 2014 to September 2018. The first group (Group A) included nine patients who were treated by an overcorrective ulnar osteotomy with acute lengthening with bone grafting. The second group (B) includes 11 children who were treated by Ilizarov distraction osteogenesis for differential lengthening of forearm bones. There were 14 boys and 6 girls. The left elbow was involved in five patients and the right elbow 15 patients. All fractures were classified as Bado type I with anterior radial head dislocation. The average age at the time of surgery was 7 years and 4 months. Results: The mean interval from the injury to surgical interference was 8.6 months. There was a significant improvement of the elbow range of motion and Mayo elbow performance score. In group B, the mean external fixation time was 9.7 weeks (range from 9 to 15 weeks). The mean total treatment time was 12.3 weeks (ranged from 12 to 16 weeks). Superficial pin-tract infection occurred in all cases and was managed without further sequelae. Conclusions: Both approaches yielded equally good results. The open surgery approach entails a more invasive procedure, but more convenient to the patient and no arduous postoperative follow-up is needed. On the contrary, differential lengthening of forearm bones is a percutaneous procedure with the application of Ilizarov principles in a controlled biological manner; with no graft materials needed. Both techniques effectively reduced the radial head.

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