Background: Extensor tendon disorders may cause severe functional impairments, and there is a lack of knowledge about their anatomic associations with the proximal fingernail matrix.
Objective: To delineate the association between the distal extensor pollicis longus tendon (EPLT) insertion and the limit of the fingernail matrix in the thumb.
Methods: The limit of the fingernail matrix and the distal bony insertion of the EPLT were identified in five thumbs from fresh-frozen human cadavers. An additional five thumbs were fixed and the longitudinal thumb sections were histologically analyzed.
Results: The terminal limit of the matrix and fingernail was dorsal and overlapped to the EPL tendon, which was located between the fingernail matrix and the phalanx, and extended dorsally to the distal section of the terminal phalanx in all ten thumb bodies.
Conclusion: The fingernail matrix is not directly inserted into the periosteum of the dorsal section of the base to the distal phalanx, because this anatomic relationship is separated by the deep fibers of the EPLT.
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http://dx.doi.org/10.3390/jcm7120465 | DOI Listing |
Sensors (Basel)
January 2025
Department of Environmental Toxicology, Texas Tech University, Lubbock, TX 79409, USA.
Human nails have recently become a sample of interest for toxicological purposes. Multiple studies have proven the ability to detect various analytes within the keratin matrix of the nail. The analyte of interest in this study is fentanyl, a highly dangerous and abused drug in recent decades.
View Article and Find Full Text PDFLife (Basel)
November 2024
Pediatric Orthopedics and Traumatology, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy.
Background: Fibrous dysplasia (FD) is a rare condition in which normal spongy and cortical bone is replaced by non-neoplastic fibrous tissue, leading to weakened bone matrix and increased risk of pathological fractures and deformities. Treating these deformities poses a significant challenge for surgeons. While various cases of surgical stabilization and limb lengthening using intramedullary nails have been reported, there is limited evidence on the use of Motorized Intramedullary Limb-Lengthening Nails (MILLNs) in FD patients.
View Article and Find Full Text PDFJ Vet Diagn Invest
December 2024
Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA.
Evaluating stress in shelter and institutionally owned cats is important to help guide improvements in their welfare. Welfare assessments often focus on behavior metrics and physiologic measurements, such as systemic cortisol levels. The gold standard for measuring acute stress is serum cortisol; measuring cortisol in feces and urine gives reliable time-integrated assessments of acute stress.
View Article and Find Full Text PDFRheumatology (Oxford)
December 2024
Department of Radiology, University of California Davis, Sacramento, CA, USA.
Objectives: To test the hypothesis that recently-developed total body-positron emission tomography (TB-PET) imaging with integrated computed tomography (CT) will enable low-dose, quantitative, domain-specific evaluation of the total inflammatory burden of psoriatic arthritis (PsA), and associate with established outcome measures of the clinical domains of PsA.
Methods: Seventy-one adult participants (40 with PsA, 16 with rheumatoid arthritis (RA), and 15 with osteoarthritis (OA)) underwent 20-min TB-PET/CT scans using [18F]FDG, a glucose analogue radiotracer. [18F]FDG uptake was assessed qualitatively and quantitatively.
Dermatol Surg
December 2024
Department of Dermatology, Kasr Al-Ainy Psoriasis Unit, Faculty of Medicine, Cairo University, Giza, Egypt.
Background: Psoriasis is a common chronic systemic disease affecting the skin, nails, and joints. Nails are commonly associated with a greater severity of the disease. Radiofrequency (RF) is a nonionizing radiation that provides energy originating from electric current to generate heat inside the dermis with anti-inflammatory effects.
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