Ankle flexion contracture deformity

Introduction Ankle flexion contracture deformity is common in clinic and seriously affects the walking function of patients. The etiology is complicated, and the surgical plan should be designed according to the pathological characteristics of the deformity. Non-traumatic ankle contracture mainly includes contracture caused by increased muscle tone and secondary flexion deformity due to muscle loss of kinetic relaxation, and sacral flexion deformity caused by increased muscle tone. It is easy to relapse after surgery, and it is necessary to simultaneously transfer the high tension tendon to balance the muscle strength. Traumatic ankle flexion deformity is also divided into two types, ischemic contracture and secondary flexion contracture.

Cause

Non-traumatic ankle contracture, mainly including contracture caused by increased muscle tone and secondary flexion deformity due to muscle loss of kinetic relaxation, ischemic contracture and secondary flexion contracture.

1, non-traumatic ankle contracture, generally with horseshoe inversion, congenital joint contracture, lower extremity nerve paralysis, limb paralysis, etc. are more common.

2, traumatic ankle flexion deformity, generally due to the formation of soft tissue adhesions after joint trauma, or burns, scar tissue contracture and other factors.

an examination

Related inspection

Bone imaging, bone and joint, soft tissue CT examination

The main clinical manifestations of skin contracture, tendon adhesion or shortening, joint capsule contracture, nerve and blood vessel shortening, seriously affect the shape and function of the joint. Seriously affect the patient's walking function.

First, physical examination

Taking a medical history gives us a first impression and revelation, and also guides us to a concept of the nature of the disease.

Second, laboratory inspection

Laboratory examinations must be summarized and analyzed based on objective data learned from medical history and physical examination, from which several diagnostic possibilities may be proposed, and further consideration should be given to those examinations to confirm the diagnosis.

Differential diagnosis

Differential diagnosis of ankle joint flexion contracture deformity: spastic flexion deformity caused by increased muscle tone: If Achilles tendon extension is performed, it is easy to relapse after surgery, and it is necessary to simultaneously transfer high tension tendon to balance muscle strength.

Traumatic ankle flexion deformity: There are two types of conditions, namely ischemic contracture and secondary flexion contracture. The former can achieve good results in early Achilles tendon extension, while the latter is complicated. The flexion contracture deformity caused by positionality has a long history. When correcting deformity, it is often necessary to release the posterior malleolus at the same time. Patients with internal malleolus fracture are likely to cause internal malleolus fracture again when correcting deformity, and skin defect due to trauma. Patients need to apply flap technology to resolve ankle flexion contracture. The main clinical manifestations of skin contracture, tendon adhesion or shortening, joint capsule contracture, nerve and blood vessel shortening, seriously affect the shape and function of the joint.

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