RESUMO
INTRODUCTION: Non-union rate in forearm fractures is generally less than 2% when a proper technique is used; this rate increases when ulnar lesions are involved. PATIENTS AND METHODS: We present a case series of seven young patients whose average age was 14 years (range 11-19 years) at the time of surgery and who presented with a forearm post-traumatic non-union that was previously treated in different ways (three isolated ulnar non-union, two isolated radial non-union and two combined). Average follow-up was 34 months (range 9-72 months). Surgical treatment began with the removal of the previous synthesis and with curettage of the non-union area. The Acumed ulnar rod, Acumed radial rod and Thalon elastic nail (all of them are unreamed and locked nails) together with autologous platelet-rich plasma (PRP) obtained with the Biomet System (concentration of 158.2×10(4) platelets/µL) were chosen to treat the patients. X-rays and clinical controls were conducted every 30 days until recovery. RESULTS: All patients recovered: average recovery was 23 weeks from operation (range 16-36 weeks) and nails were removed 3 months after complete healing. Six patients had excellent results and one patient had a good result (Patient 2, forearm pronosupination 60-0-40 degrees). DISCUSSION: The purpose of the case series was to establish a better way of treatment and to find a technique that could avoid the use of bone grafts, because obtaining autologous bone requires a further surgical procedure that can be really invasive depending on the amount of bone needed. CONCLUSION: All patients in the study showed complete recovery, with excellent clinical outcomes. Although there were only seven patients in this case series, and there is a need to analyse more patients, this study showed that the use of a specific locking nail system can provide proper stability to ulnar or radial atrophic non-union despite rotational forces, and when combined with autologous growth factors (PRP) is sufficient to promote bone healing in young patients without the necessity to take autologous bone grafts.
