Flexor tendon injury

Introduction to flexor tendon injury The tendon injury of the hand is mostly open, with more cuts, often with neurovascular injury or bone and joint damage, and a closed laceration can also occur. After the tendon breaks, the corresponding joint loses its function. For example, the shallow flexor tendon rupture refers to the proximal interphalangeal joint can not flex; the deep flexor tendon rupture, the distal interphalangeal joint can not flex; the deep and shallow flexor tendon rupture, the distal and proximal interphalangeal joints can not flex. Since the intramuscular muscle is still intact, the flexion of the metacarpophalangeal joint is not affected. The different parts of the extensor tendon are broken, and the corresponding joints cannot be stretched and deformed. basic knowledge The proportion of sickness: 0.001% - 0.004%, the incidence rate of the sports-oriented population is about 0.01% - 0.02% Susceptible people: no specific population Mode of infection: non-infectious Complications: osteoarthritis tendonitis

Causes of flexor tendon injury

Trauma (75%)

Most of the tendon injuries in the hand are open, and there are many traumatic factors such as cutting electric saws and crushing injuries. Most of them are caused by tendon rupture, and the surrounding tissues are severely contused. Nerve, blood vessels, bone and joint injuries, etc., should be given attention when treating.

Flexor tendon injury prevention

The disease is caused by traumatic factors, so pay attention to production and life safety, avoid trauma, and ensure personal safety is the key to the prevention of this disease.

In addition, it should be noted that early functional exercise can promote endogenous healing and is an effective measure to prevent tendon adhesion. In the early postoperative period, there is a protective active extension and passive flexion exercise, which can stimulate the maturity of the tendon wound and promote healing. Promote the arrangement of nascent fibers as early as possible, which is conducive to reshaping the muscle scars, reducing the collapse and atrophy of the tendon sheath, and accelerating the secretion of synovial fluid.

Flexor tendon injury complications Complications Osteoarthritis tendonitis

This disease often involves neurovascular injury or bone and joint injury, and can also cause closed laceration. Especially in patients with crush injury, these complications are more likely to occur. After the tendon is broken, the corresponding joint will lose its active function. After the operation, the disease is also easy to be complicated with tendon adhesion, tendon nutrition, tendon healing and tendon adhesion is a causal relationship, the more damage the tendon nutrition is destroyed, the slower the tendon healing, and the more severe the tendon adhesion, even the occurrence The collapse and atrophy of the tendon sheath.

Symptoms of flexor tendon injury Common symptoms Muscle strains Tendons Tendons Tendons Muscles Contusion Muscles Bruises Muscles Complete fractures Tendons Fractures Interphalangeal joints cannot flex

The disease mainly manifests as activity disorder in the corresponding region of the damaged flexor tendon:

1, refers to the shallow flexor tendon rupture corresponding to the proximal interphalangeal joint can not flex;

2, refers to deep flexor tendon rupture, manifested as the distal interphalangeal joint can not flex;

3, refers to the deep and shallow flexor tendon rupture, the distal and proximal interphalangeal joints can not flex.

Since the intramuscular muscle is still intact, the flexion of the metacarpophalangeal joint is not affected.

Examination of flexor tendon injury

Clinically, the diagnosis of flexor tendon injury is not difficult. According to the history of trauma and the functional manifestations of the affected area, diagnosis can generally be made without other auxiliary examination methods. For some patients with incomplete rupture of tendon, joint activity can be normal. The resistance test can be performed, which means that the limbs are weak and painful, and thus the diagnosis can be made and the corresponding treatment method can be adopted.

Diagnosis and diagnosis of flexor tendon injury

The disease is mainly caused by traumatic factors, according to the patient's history of trauma, clinical and examination can be diagnosed, no need to identify. The main clinical symptoms are as follows: 1. The finger flexor tendon rupture refers to the fact that the proximal interphalangeal joint cannot flex. 2, refers to deep flexor tendon rupture, manifested as the distal interphalangeal joint can not flex. 3, refers to the deep and shallow flexor tendon rupture, the distal and proximal interphalangeal joints can not flex. . If the subject is normal for some patients with incomplete rupture of the tendon, the joint activity can be normal. At this time, the resistance test can be performed.

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