Customized 3-Dimensional-Printed Finger Splints for Mallet Finger.

We aimed to evaluate the feasibility and effectiveness of customized 3-dimensional (3D)-printed finger splints in the treatment of mallet fingers. We categorized 21 patients into those who received the traditional finger splint (group A) and those treated with a customized 3D-printed finger splint (group B). We retrospectively analyzed the functional outcomes and patient satisfaction in the 2 groups. During the follow-up period, 3 patients in group A failed treatment, of which 2 underwent extended immobilization and one 1 transferred to surgery. All 3 patents in group B who failed treatment received extended immobilization and did not require transfer to surgery. In patient satisfaction assessments, group B patients scored better in dimension and comfort than did group A patients. Customized 3D-printed finger splints provided a more comfortable and fitting treatment option for mallet finger. Although they did not result in a significant difference in treatment success rate, these splints significantly improved patient compliance with treatment and wearing.