Vascularized Osteocutaneous Posterior Interosseous Bone Flap for the Treatment of Nonunion of Forearm Bones

Forearm nonunion is a challenging condition for orthopaedic surgeons.
In this study, we used a new technique for the treatment of forearm nonunion with bone loss and/or current signs of infection.
Patients and Four patients were managed with thorough debridement and a vascularized regional osteocutaneous flap from the distal ulna based on the posterior interosseous artery.
Union was achieved after an average of 3.75 months. Skin flap was viable in all patients. The Quick DASH score, VAS score and forearm and elbow range of motion improved compared to preoperative evaluations.
A posterior interosseous osteocutaneous flap from the distal ulna is a reliable vascularized bone graft for managing forearm nonunion.