A 3D representation of the flexor digitorum profundus (FDP) and the flexor digitorum superficialis (FDS) with the fibro-osseous tunnel removed and the tendons distracted from the phalanges demonstrates the normal anatomic relationships.

Flexor digitorum superficialis (FDS) tendon is volar and superficial to flexor digitorum profundus (FDP) tendon up to level of distal A2 pulley, where it splits into radial and ulnar slips that rotate around FDP tendon to become deep to tendon.

Recent dissection studies resulted in the introduction of the term “chiasma antebrachii”, which represents an intersection of the flexor digitorum superficialis (FDS) tendons for digits 2 and 3 in the distal third of the forearm. This retrospective investigation aimed to provide an MRI-based morphologic analysis of the chiasma antebrachii.

2015年2月25日 · The flexor mechanism of the index, middle, ring, and small fingers consists of the flexor digitorum profundus (FDP) and the flexor digitorum superficialis (FDS) tendons. The FDP and FDS muscles flex all the joints that they cross, including the wrist, the metacarpophalangeal joints, and the proximal interphalangeal (PIP) joints.

Modern 3-T MRI scanners with dedi-cated 16-channel surface hand-and-wrist coils allow high-resolution small-FOV imaging of the fingers. To ensure high-quality images, the scan protocol must be tailored for the fin-ger and must use appropriate imaging planes.

The high resolution of 3T MRI with dedicated surface coils allows for optimal assessment of the intricate soft tissue structures of the fingers. There have been several reports on detailed MRI features of the basic anatomy and common pathological findings of the finger and hand.

2023年10月13日 · The flexor digitorum superficialis (FDS) muscle originates at the medial humeral epicondyle as part of the common flexor tendon. The flexor digitorum profundus (FDP) muscle has a complex origin involving the proximal ulna distal to the common flexor tendon.

A clinical diagnosis of FDS rupture was suspected and magnetic resonance imaging (MRI) confirmed the ruptured FDS tendon, which appeared to be coiled up in the palm [Figure 2]. Figure 1. The near 90° flexion contraction at the PIP joint at the beginning of operation. Figure 2.

2002年3月1日 · MR imaging is a powerful method for evaluating acute and chronic lesions of the stabilizing articular elements (volar plate and collateral ligaments) of the fingers and thumbs, particularly in the frequently affected proximal interphalangeal and metacarpophalangeal joints.

2021年10月10日 · The flexor tendons of the second through fifth fingers include the flexor digitorum profundus (FDP) tendon that inserts at the volar base of the distal phalanx and flexor digitorum superficialis (FDS) that inserts on the midportion of the middle phalanx.