Lampasona Nicholas, Mazzei Taylor, LaPorte Brandon, Speziale Arthur, Tsvyetayev Oleg, Schwartz Gary, Lutfi Nicholas
Osteopathic Medicine, Nova Southeastern University Dr. Kiran C. Patel College of Osteopathic Medicine, Fort Lauderdale, USA.
Orthopaedic Surgery, Nova Southeastern University Dr. Kiran C. Patel College of Osteopathic Medicine, Fort Lauderdale, USA.
Cureus. 2021 May 7;13(5):e14894. doi: 10.7759/cureus.14894.
The princeps pollicis artery (PPA) is typically a direct branch off the deep palmar arterial arch. Identified is a 90-year-old female cadaver in which the right hand has a duplicated PPA and radialis indicis (RI) artery. These vessels originate from the superficial palmar arterial arch as variant vessels as well as from the deep palmar arterial arch. The superficial arch appears in its classic pattern, while the duplicate PPA and RI present at the radial aspect of the superficial arch in the volar first web space with clear communication to the superficial radial artery. There are many common surgical procedures that require precise knowledge of the first web space, such as Dupuytren's contracture release, trigger thumb release, and syndactyly release at the first web space. Further, percutaneous pinning of fractures at the base of the thumb may pose an inherent risk to the underlying vessels. Understanding these variations of hand vasculature is of clinical significance in disciplines such as orthopedic surgery, plastic surgery and vascular surgery.
拇主要动脉（PPA）通常是掌深动脉弓的直接分支。已鉴定出一具90岁女性尸体，其右手有一条重复的PPA和示指桡侧动脉（RI）。这些血管起源于掌浅动脉弓，为变异血管，也起源于掌深动脉弓。掌浅弓呈现其经典形态，而重复的PPA和RI出现在掌浅弓桡侧的掌侧第一蹼间隙，与桡动脉浅支有明确交通。有许多常见的外科手术需要精确了解第一蹼间隙，如掌腱膜挛缩松解术、扳机指松解术和第一蹼间隙并指松解术。此外，拇指基部骨折的经皮穿针固定可能对其下方的血管构成固有风险。了解手部血管的这些变异在骨科手术、整形手术和血管外科等学科中具有临床意义。
