PMID- 37261304 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230604 IS - 2223-8956 (Electronic) IS - 1016-3190 (Print) IS - 1016-3190 (Linking) VI - 35 IP - 2 DP - 2023 Apr-Jun TI - Orthopedic implant hypersensitivity: Characterization of clinical presentation and effects of photobiomodulation therapy. PG - 176-181 LID - 10.4103/tcmj.tcmj_255_22 [doi] AB - OBJECTIVES: Orthopedic implants have improved the quality of life in aging society but also induces several kinds of tissue reactions, referred to as orthopedic implant hypersensitivity (OIH). The aim of our study is to report the clinical characteristics of OIH and the effects of photobiomodulation therapy (PBMT) on these groups of patients. MATERIALS AND METHODS: We collected cases that complained of skin rashes with pruritus after orthopedic implants from January 2017 to June 2022 at the Dermatology clinic in Hualien Tzu Chi Hospital. We recorded the sites and material of orthopedic implants, skin lesions onset time, symptoms, location after implantation, and the disease duration. Laboratory tests were measured, including complete blood count, differential count, serum immunoglobulin E (IgE) level, as well as inflammatory and autoimmune markers. PBMT, including UVB311 nm or low-level laser therapy 808 nm, was performed. Dose, duration, and response were documented. RESULTS: Fourteen patients were diagnosed with OIH; twelve presented with localized eczema at the implant sites, and two with generalized eczema. Eleven patients (78.6%) had either elevated eosinophils percentage (>6%) or IgE level (>200 U/mL) or both. Seven patients (50%) had favorable outcome after PBMT and successfully withdrew from systemic steroid. CONCLUSION: In our case series, localized eczema at implant sites was a common cutaneous presentation in OIH. Hence, a surgical scar at the eczema site or long-term waxing and waning generalized eczema should prompt physicians on the possibility of OIH. Blood eosinophils percentage and serum IgE level can be reference biomarkers for OIH. PBMT provides a noninvasive and effective treatment strategy for immune regulation and tissue regeneration. CI - Copyright: (c) 2023 Tzu Chi Medical Journal. FAU - Wu, Ro-Wei AU - Wu RW AD - Skin Institute, Department of Dermatology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan. FAU - Chang, Chung-Hsing AU - Chang CH AD - Skin Institute, Department of Dermatology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan. AD - Doctoral Degree Program in Translational Medicine, Tzu Chi University and Academia Sinica, College of Medicine, Tzu Chi University, Hualien, Taiwan. AD - Institute of Medical Sciences, College of Medicine, Tzu Chi University, Hualien, Taiwan. LA - eng PT - Journal Article DEP - 20230221 PL - India TA - Tzu Chi Med J JT - Tzu chi medical journal JID - 101770275 PMC - PMC10227683 OTO - NOTNLM OT - Aged OT - Eczema OT - Hypersensitivity OT - Orthopedic implant OT - Photobiomodulation therapy COIS- Dr. Chung-Hsing Chang, an editorial board member at Tzu Chi Medical Journal, had no role in the peer review process of or decision to publish this article. The other author declared no conflicts of interest in writing this paper. EDAT- 2023/06/01 13:10 MHDA- 2023/06/01 13:11 PMCR- 2023/02/21 CRDT- 2023/06/01 10:39 PHST- 2022/09/13 00:00 [received] PHST- 2022/11/28 00:00 [revised] PHST- 2022/12/14 00:00 [accepted] PHST- 2023/06/01 13:11 [medline] PHST- 2023/06/01 13:10 [pubmed] PHST- 2023/06/01 10:39 [entrez] PHST- 2023/02/21 00:00 [pmc-release] AID - TCMJ-35-176 [pii] AID - 10.4103/tcmj.tcmj_255_22 [doi] PST - epublish SO - Tzu Chi Med J. 2023 Feb 21;35(2):176-181. doi: 10.4103/tcmj.tcmj_255_22. eCollection 2023 Apr-Jun.