RT Journal Article
T1 What happens under the flexor tendons of the fingers in dactylitis?
A1 Naredo, Esperanza
A1 Largo, Raquel
A1 Olivas Vergara, Otto
A1 Herencia, Carmen
A1 Mateos Fernández, Myriam
A1 García De Pereda Notario, Carlos Miguel
A1 Mérida Velasco, José Ramón
A1 Herrero Beaumont, Gabriel
A1 Murillo González, Jorge Alfonso
AB Aim: Tenosynovitis is one of the most frequently described inflammatory lesions in psoriatic dactylitis. The aim of the study was to assess by ultrasound the distribution of content within the synovial sheath of the finger flexor tendons in a cadaveric experimental model of tenosynovitis and to describe anatomically the elements of the space between the flexor tendons and the palmar aspect of the proximal phalanx of the fingers.Material and method: Silicone was injected under ultrasound guidance into the digital flexor sheath of the index finger of a hand specimen. Ultrasound images of the distribution of the filling of the flexor synovial space with the injected material were obtained. These images were compared with images from patients with psoriatic dactylitis. The palmar regions of the hand and fingers were dissected to check the distribution of the injected silicone in the synovial cavity. Additionally, we dissected the 2nd to 5th fingers of five cadaveric hands, including the one used for the experiment.Results: During the injection of the substance, we observed an increasing homogeneous hypoechoic band around the flexor tendons that differed from the images of patients. Dissection of the specimen showed the injected silicone distributed throughout the digital flexor sheath to the distal interphalangeal joint. In addition, we provided an illustrated anatomical description of the elements located between the flexor tendons and the palmar aspect of the proximal phalanx, the inflammation of which could simulate flexor tenosynovitis.Conclusion: The observations of this study may contribute to a better understanding of the anatomical structures involved in PsA dactylitis.
PB Romanian Society for Ultrasonography in Medicine and Biology
SN 2066-8643
SN 1844-4172
YR 2023
FD 2023-03-30
LK https://hdl.handle.net/20.500.14352/102477
UL https://hdl.handle.net/20.500.14352/102477
LA eng
NO Naredo E, Largo R, Olivas-Vergara O, Herencia C, Mateos-Fernández M, García-de-Pereda-Notario CM, Mérida-Velasco JR, Herrero-Beaumont G, Murillo-González J. What happens under the flexor tendons of the fingers in dactylitis? Med Ultrason. 2023 Mar 30;25(1):42-47.
NO Naredo, E., Largo, R., Olivas Vergara, O. et al. «What happens under the flexor tendons of the fingers in dactylitis?» Medical Ultrasonography, vol. 25, n.o 1, marzo de 2023, p. 42. DOI.org (Crossref), https://doi.org/10.11152/mu-4026.
NO Instituto de Salud Carlos III
NO Fondo Europeo de Desarrollo Regional
DS Docta Complutense
RD 8 abr 2025