The ring finger is bent and cannot be straightened

Human fingers are very important because people's hands can do many things. Once we let go of our hands, we will find that it seriously affects our quality of life. So we should pay attention to protecting our hands and take care of our fingers. But sometimes accidents happen that are unpredictable, and the ring finger is an important part of the fingers. But sometimes the problems that occur are very embarrassing, such as why the ring finger is bent and cannot be straightened?

Stenosing tenosynovitis is a common disease of the tendon sheath. If it occurs in the tendon sheath of the extensor pollicis brevis and extensor pollicis longus, it is called radial styloid stenosing tenosynovitis; if it occurs in the flexor tendon of the thumb or finger, it is called trigger finger.

Causes

The cause is unclear, but local tissue degeneration and mechanical stimulation from excessive flexion and extension of the fingers may be one of the causes. It affects more women than men, especially middle-aged and elderly people. It can also be seen in infants and young children, and is mostly congenital.

Clinical manifestations of stenosing tenosynovitis

Finger clicking is accompanied by obvious pain. In severe cases, the affected fingers are flexed and dare not move. The pain is often on the palm side of the metacarpophalangeal joint. During physical examination, a painful nodule can be felt at the distal palmar crease. During activity, the nodule moves up and down with the flexor tendon and may produce a popping sound. The frequency of disease on each finger is thumb, middle finger and ring finger. Radial styloid stenosing tenosynovitis is characterized by pain, local tenderness, and sometimes palpable painful nodules over the radial styloid. The pain worsens when making a fist and tilting the wrist in the ulnar direction.

Diagnosis of stenosing tenosynovitis

1. Tenosynovitis of the flexor tendon

(1) It is common in women and is more common on the thumb, middle and ring fingers.

(2) There is local pain and tenderness, and a nodule may be felt. The nodule can move with the flexion and extension of the fingers.

(3) "Snapping" may occur. In severe cases, the flexion and extension of the affected finger are limited, or the finger cannot be flexed in the extended position, or cannot be straightened in the flexed position.

2. Radial styloid tenosynovitis

(1) Pain, tenderness, and localized swelling in the radial carpal stem. The pain worsens with movement of the thumb and wrist joints.

(2) Radial styloid tenosynovitis test: Make a fist with the affected hand, bend the thumb inside the palm, and tilt the wrist ulnarly. If the pain at the radial styloid process increases, it indicates tenosynovitis.

Stenosing tenosynovitis treatment

1. Conservative treatment: reducing activity, applying hot compress, and intrathecal steroid injection have better therapeutic effects.

2. If conservative treatment is ineffective, resection of the stenotic tenosynovium may be considered.

3. For children with congenital stenotic herniated sheath inflammation, conservative treatment is generally ineffective and surgical treatment should be adopted.