Aims. Medial humeral epicondyle fractures (MHEFs) are common elbow fractures in children. Open reduction should be performed in patients with MHEF who have entrapped intra-articular fragments as well as displacement. However, following open reduction, transposition of the ulnar nerve is disputed. The aim of this study is to evaluate the need for ulnar nerve exploration and transposition. Methods. This was a retrospective cohort study. The clinical data of patients who underwent surgical treatment of MHEF in our hospital from January 2015 to January 2022 were collected. The patients were allocated to either transposition or non-transposition groups. Data for sex, age, cause of fracture, duration of follow-up, Papavasiliou and Crawford classification, injury-to-surgery time, preoperative ulnar nerve symptoms, intraoperative exploration of ulnar nerve injury, surgical incision length, intraoperative blood loss, postoperative ulnar nerve symptoms, complications, persistent ulnar neuropathy, and elbow joint function were analyzed. Binary logistic regression analysis was used for statistical analysis. Results. A total of 124 patients were followed up, 50 in the ulnar nerve transposition group and 74 in the non-transposition group. There were significant differences in ulnar nerve injury (p = 0.009), incision length (p < 0.001), and blood loss (p = 0.003) between the two groups. Binary logistic regression analysis revealed that preoperative ulnar nerve symptoms (p = 0.012) were risk factors for postoperative ulnar nerve symptoms. In addition, ulnar nerve transposition did not affect the occurrence of postoperative ulnar nerve symptoms (p = 0.468). Conclusion. Ulnar nerve transposition did not improve clinical outcomes. It is recommended that the ulnar nerve should not be transposed when treating MHEF operatively. Cite this article: Bone Joint J 2024;106-B(2):212–218

Purposes of study. Evaluation of the pre-operative documentation of neurovascular status in children presenting with Gartland Grades 2 and 3 supracondylar fractures and the development of an Emergency Department Proforma. Methods and results. A retrospective case-note review was performed on patients with Gartland Grade 2 and 3 supracondylar fractures observed in a two-year period from July 2008 – July 2010. 137 patients were included; sixteen patients (11.7%) sustained a Gartland Grade 2a fracture, sixty patients (43.8%) a Gartland Grade 2b fracture and sixty-one (44.5%) a Gartland Grade 3 fracture. Mean patient age at presentation was 5.59 years (range 12 months to 13 years). Nineteen patients (13.9%) had evidence of neurological deficit at presentation and thirteen patients (9.5%) presented with an absent radial pulse. Only twelve patients (8.8%) and nineteen patients (13.9%) respectively had a complete pre-operative neurological or vascular assessment documented. Regarding the individual nerves, fifty-nine (43.1%) patients had median nerve integrity documented, fifty-five (40.1%) ulnar nerve and forty-nine (35.8%) radial nerve integrity documented. Only eighteen patients (13.1%) had their anterior interosseous nerve function documented. Ten patients (7.3%) had post-operative neurological dysfunction, consisting of eight ulnar nerve injuries, and two radial nerve injuries. vi) Conclusions. Pre-operative documentation of neurovascular status in children with displaced supracondylar fractures was poor. Documentation of anterior interosseous nerve examination was particularly poor. We propose the introduction of a proforma (Liverpool Upper-limb Fracture Assessment – LUFA) to increase documentation of neurovascular assessment and optimise emergency department evaluation of children presenting with upper limb injuries