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TREATMENT OF PROXIMAL HUMERAL FRACTURES IN CHILDREN USING ELASTICALLY STABLE INTRAMEDULLARY NAILING (ESIN)

7th Congress of the European Federation of National Associations of Orthopaedics and Traumatology, Lisbon - 4-7 June, 2005



Abstract

Introduction Most proximal humeral fractures are treated conservatively. However, treatment for the severely displaced fractures (Neer’s grade IV) is more challenging. This is especially in the adolescent age group where the remodelling potential is reduced. We report on our 8-year experience of fixing severely displaced proximal humeral fractures in children using ESIN.

Method Between 1996 and 2003, we treated 14 children (7 metaphyseal and 7 epiphyseal fractures) using ESIN. 11 were completely displaced and 12 were caused by high energy forces. Our indications included unstable fracture with severe displacement (> 2/3 shaft diameter), age above 12 years and multiple injuries/polytrauma. Manipulation of the fractures and the operative technique is described. Post-operatively, the arm is kept in a sling for 2 weeks. All patients were reviewed on a monthly basis until clinical and radiological healing. Following the removal of the nails, the patients are only discharged when they demonstrate full pain-free range of movement.

Results The double nail technique was used in the first 2 cases and a single nail was used for the subsequent 12 cases. The fracture was reduced by open technique in 1 case. In another, the nail was inserted antegrade. Time from injury to surgery was 2.4 days. The mean operation time was 65 minutes and hospital stay 2.1 days. Time to clinical healing (complete pain-free range of movement) was 2.4 months and radiological healing 3.2 months. All nails were removed by 6 months. Shoulder and elbow range of movement returned to normal at 3.5 and 3.2 months. Complications included 4 cases of elbow stiffness due to nail prominence and 1 case of nail breakage during removal. 1 patient had 10 degrees of varus and in 2 other patients, 5 degrees of varus and 1 cm of shortening and 1.5 cm of shortening respectively. At the final follow-up (14.6 months), all patients had symptom free full range of movement.

Conclusion ESIN is a valid treatment for the severely displaced proximal humeral fractures in the adolescence. It avoids lengthy and awkward immobilization and allows early post-operative mobilization. The single nail technique proved to be adequate to maintain alignment and allow fracture healing, keeping the invasiveness of the procedure to a minimum.

Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.