What is the protruding hard bone at the wrist joint?

The wrist joint is a critical part of the human body, and the wrist controls the free bending and movement of the hand. The appearance of protruding hard bones in the wrist joint is also a common symptom. Generally, the appearance of protruding hard bones in the wrist joint may be due to hyperplasia of tenosynovitis or a disease caused by cartilage, which can easily cause pain in the wrist joint and requires timely inspection and treatment.

What is the hard bone protrusion at the wrist joint?

It may be stenosing tenosynovitis, caused by trauma or repeated friction of the tendon, which leads to exudation and proliferation of the inner layer of the tendon sheath. In severe cases, fibrous adhesion may even form fibrocartilage, turning it into a narrow band-shaped fibrocartilage ring, affecting the normal movement of the tendon. In severe cases, the tendon cannot slide in the narrow tendon sheath. Generally speaking, conservative treatment is like closed treatment. If ineffective, surgical treatment can be considered.

Clinical manifestations

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

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.

treat

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

2. If conservative treatment is ineffective, tenosynovectomy of the stenosis may be considered.

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

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.