The only movements permitted in the interphalangeal joints are flexion and extension. Flexion is more extensive, about 100°, in the PIP joints and slightly more restricted, about 80°, in the DIP joints. Extension is limited by the volar and collateral ligaments. The muscles generating these movements are:

Nov 9, 2023 · The ligaments surrounding this joint are taut during flexion creating an effective gripping mechanism. As a result, the PIP joint has a crucial role to play in the ‘power grip’, which along with the ‘precision grip’ enabled the human race to …

Oct 28, 2024 · The proximal interphalangeal joint (PIPJ) refers to the articulation between the proximal and middle phalanx in the hand. It is present in all digits except the thumb. It is a synovial hinge joint which permits flexion and extension in center …

Both intrinsic and extrinsic hand muscles are responsible for producing flexion-extension movements at the interphalangeal joints of the hand. Flexion of the interphalangeal joint of the thumb is accomplished through the action of the flexor pollicis longus muscle.

Oct 30, 2023 · Flexion and extension of digit 2, often referred to as the index finger, occurs entirely in the sagittal plane. More medially lying digits, however, have their flexion and extension occur increasingly obliquely so as to better oppose the thumb.

1 day ago · The hand's interphalangeal joints are the hinge joints that allow flexion in the direction of the palm between the finger phalanges.

Our preferred treatment for a PIP joint flexion contracture is illustrated in our algorithm (See Figure 1) with the initial decision based upon the degree of PIP joint contracture.

The PIP joint is designed to undergo 100-110° of motion in flexion and extension, and it must do so while maintaining near-maximum resistance to radial-ulnar deviation stresses in all angles of flexion.

Proximal interphalangeal (PIP) joint contracture is a common, difficult clinical problem that can arise from minor trauma. Management is difficult because outcomes are unpredictable and often poor, due to residual flexion deformities postoperatively.

Jul 24, 2023 · Indications for this approach include PIP flexion contractures with soft tissue amenable to a dorsal approach, digits with volar scarring, and multiple affected digits. Contraindications include a soft tissue envelope that cannot tolerate surgical incision and …