Understanding and treating lateral ankle sprains and their consequences: a constraints-based approach.

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Abstract

[Indexed for MEDLINE] 12. Sci Rep. 2025 Feb 3;15(1):4087. doi: 10.1038/s41598-024-84166-w. Efficacy of 3D-printed patient specific implant for orbital wall fracture repair in a series of 40 patients. Yang MK(1), Ha SJ(1), Kim GJ(2), Ock J(3), Kim N(3), Sa HS(4)(5). Author information: (1)Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. (2)Department of Ophthalmology, Myongji Hospital, Gyeonggi-do, Republic of Korea. (3)Department of Convergence Medicine, Asan Medical Center, Asan Medical Institute of Convergence Science and Technology, University of Ulsan College of Medicine, Seoul, Republic of Korea. (4)Department of Ophthalmology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. lineblue@hanmail.net. (5)Department of Ophthalmology, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea. lineblue@hanmail.net. This study was aimed to evaluate the efficacy of a 3D-printed patient specific implant (PSI) made of polycaprolactone (PCL) in repairing orbital wall fractures. We retrospectively reviewed patients who underwent surgical repair for unilateral orbital wall fractures using a 3D-printed PCL PSI. Computed tomography scans were used to compare the orbital tissue volumes and the morphological similarity (root-mean-square [RMS] conformance distance) between the fractured wall and the mirrored counterpart before and after surgery. All orbital fractures (inferior wall, 19; medial wall, 9; and combined inferior and medial walls, 12) were successfully repaired without postoperative complications. The mean time for implant insertion during surgery was 19.8 s (range, 3-60). The mean orbital tissue volume ratio between the fractured orbit and the contralateral normal orbit significantly decreased after surgery (109.0% preoperatively vs. 100.6% at postoperative 6 months, P