case_images: PMC11652933_01
case_images: : Dupuytren contracture of case 1, affecting the little finger. Fig. 1-A,B: pre-operative appearance. Fig. 1-C: installation of the hand in the Sono-Bath, on a side table, with at the end of the side table the sonograph, before disinfection. Fig. 1-D: percutaneous chord release using a trigger-finger Sono-Instrument under immersion. Fig. 1-E: aspect of the hand at the end of the operation, before confection of the dressing.
case_images: gr1.jpg
case_images: PMC11652933_01_gr1.jpg
case_images: f0005
case_images: The extension deficits were 10  at the MCP joint and 84  at the PIP joint, with a normal DIP joint and full finger flexion (Tubiana-Michon stage III - Fig. 1A,B). Later, the hand of the patient was disposed in the empty Sono-Bath (Fig. 1C). A 14-gauge needle was used to make the entry point, allowing the introduction of the trigger finger Sono-Instrument  through this small puncture to progressively cut the cord under sonographic guidance (Fig. 1D). Full extension was achieved with moderate force (Fig. 1E).
case_images: PMC11652933_02
case_images: : Dupuytren contracture in the case 2 affecting the ring finger. Fig. 2-A: preoperative condition. The blue rectangle represents the area that was covered by the probe to obtain the sonographic views of Fig. 2-B, 2-C and 2-D. Fig. 2-B: sonographic view under immersion showing on the same image small and large skin folds and bone, tendons, nerves and the Dupuytren cord. Fig. 2-C: targeted injection of local anesthesia around the cord. The white arrow represents the beveled needle tip. Fig. 2- D: sonography guided release of the cord. Fig. 2-E: clinical result, 12 days after the operation. Good recovery of finger extension, no skin rupture. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
case_images: gr2.jpg
case_images: PMC11652933_02_gr2.jpg
case_images: f0010
case_images: Only his ring finger was affected, with a single palmo-digital cord leading a contracture with lack of extension 50  at MCP joint and 20  at PIP joint (Tubiana-Michon stage II - Fig. 2A). The use of the Sono-Bath was quite helpful to overcome this issue and to increase the operative field of view (Fig. 2B).