[Guidelines for the Diagnosis and Treatment of Ulnar Impaction Syndrome (2024)]

Ulnar impaction syndrome (UIS), also known as ulnar impaction or ulnar abutment, is a degenerative condition causing pain on the ulnar side of the wrist. It can lead to wrist bone necrosis, resulting in wrist joint stability disruption and a significant wrist function impairment. The global understanding of this condition varies, contributing to substantial differences in clinical outcomes. In collaboration with the Asian Pacific Wrist Association (APWA), a team of experts from various fields within the Hand Surgery Department at Huashan Hospital Fudan University has collectively formulated the "Guidelines for the Diagnosis and Treatment of Ulnar Impaction Syndrome (2024)". The development process adhered to the guidelines outlined in the World Health Organization (WHO)'s handbook for guideline development. The Guidelines forms 10 key questions and 21 recommendations, provides recommendations for UIS diagnosis, criteria for selecting conservative or surgical interventions, options for surgical procedures, and address various related issues, aiming to guide clinicians in their diagnostic and therapeutic approaches.