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Surgery of the Knee, Injury to the Infrapatellar Branch of the Saphenous Nerve, Traumatic Eczematous Dermatitis ( SKINTED ) in a 73-Year-Old Woman
Ali Sayyadinejad *1 , Sahar Hoseinkhani2
1- Department of dermatology , Vali-e-Asr hospital, School of medicine, Zanjan university of medical Sciences, Zanjan, Iran , asayyadinejad@gmail.com
2- Department of dermatology, Vali-e-Asr hospital, School of medicine, Zanjan university of medical Sciences, Zanjan, Iran
Abstract:   (3 Views)
Surgery of the Knee, Injury to the Infrapatellar Branch of the Saphenous Nerve, Traumatic Eczematous Dermatitis ( SKINTED ) also known as Eczematous Neurodermatitis following total knee arthroplasty is an infrequently recognized dermatitis following total knee replacement. The condition is characterized by a localized eczematous eruption restricted to postoperative anesthetic area in the lateral side of midline incision scar of total knee arthroplasty (TKA) corresponding to the distribution of the injured infrapatellar branch of the saphenous nerve (IPBSN). SKINTED is subset of autonomic denervation dermatitis (ADD) that is site and procedure specific. We described a case of 73-year-old woman who developed a pruritic, erythematous, scaly plaque lateral to her TKA incision scar 3 months postoperation. Physical examination revealed sensory loss within the affected area and a localized eczematous plaque restricted to the anesthetic zone. Laboratory testing was unremarkable. Treatment with topical fluocinolone acetonide and oral cetirizine led to rapid skin lesion improvement, with gradual and partial recovery of sensation over ten months. This case highlights the importance of recognizing SKINTED as a distinct postoperative complication and emphasizes the need to differentiate it from other dermatologic or implant-related conditions to prevents misdiagnosis, unnecessary skin biopsy, patch testing and unwarranted antibiotic therapy.
 
Keywords: Knee, Arthroplasty, Replacement, Neurodermatitis, Anesthesia
     
Type of Study: Case Report Article | Subject: Clinical Medicine
Received: 2025/12/20 | Accepted: 2026/05/26
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