The Incidence of Nonunion of the Hallux Interphalangeal Joint Arthrodesis
Category: Midfoot/Forefoot Introduction/Purpose: Hallux interphalangeal joint (HIPJ) arthrodesis is an effective procedure to treat pain and provide stability, which is often performed for intrinsic pain to the HIPJ. Additionally, this procedure is typically employed in concert with the Jones tenosuspension. Despite that this is an accepted technique, the available literature is scant and questions remain regarding nonunion rates and contributory factors to poor healing. A systematic review of the literature was undertaken to determine the rate of nonunion for HIPJ arthrodesis. Methods: To acquire the highest quality and most relevant studies available, publications were eligible for inclusion only if they involved patients undergoing HIPJ arthrodesis. Studies additionally required mean follow-up of at least six weeks and inclusion of appropriate detail regarding complications, nonunion rates, and patient demographics. Ultimately, 7 studies involving 313 HIPJ arthrodeses met inclusion criteria. Results: A total of 291 patients with a weighted mean age of 48.9 were included. The nonunion rate was 28.3% at a weighted mean follow-up of 8.4 months. The overall complication rate was 33.0%. Conclusion: Considering the increased rate of complications and nonunions for this commonly employed procedure, additional prospective comparative analyses are needed to identify important patient demographics and to determine superior fixation constructs.