Contribution of revision amputation vs replantation for certain digits to functional outcomes after traumatic digit amputations: A comparative study based on multicenter prospective cohort

• DOI: 10.1016/j.ijsu.2021.106164
• Publication Date: 2021-11-10T07:09:56Z
• Authors: Hongyi Zhu; Jianli Wang; Tao Gao; Maoyuan Tian; Lei Xia; Qianying Cai; Changqing Zhang; Yuben Xu; Xianyou Zheng
• Keywords: Numerical digit; Middle finger; Ring finger

Traumatic digit amputations can result in significant impairment. Optimal surgical treatment is unclear for certain digits various amputation patterns. Our aim was to compare the contribution of revision vs replantation each particular functional outcomes.Prospective cohort study at three tertiary hospitals conducted China. Eligible participants were 3192 patients with traumatic enrolled from January 1, 2014, 2018. The primary outcome Michigan Hand Outcomes Questionnaire (MHQ) scores 2 years after initial surgery. Secondary score on Disabilities Arm, Shoulder, and (DASH).Of patients, 2890 completed study. Main-effect linear regression showed that thumb, index, long, ring (proximal proximal interphalangeal [PIP] joint) fingers had significantly better MHQ compared corresponding finger amputation. DASH results comparable. Finger-finger interaction analyses multifactor dimensionality reduction (MDR) revealed small smallest greatest interactions other fingers, respectively. After stratification by level index finger, or long distal PIP joint resulted when thumb also traumatically amputated IP/PIP joint.Replantation preferable amputation, regardless pattern. Replantation beneficial only joint. indistinguishable terms outcome. Future investigations clinical decisions should take into account role finger-finger interactions.