The sequelae of poliomyelitis are not necessarily the same. The sequelae are mild and severe, mainly related to the muscle groups involved in the pre paralysis and paralysis period of poliomyelitis, as well as the recovery of the muscle groups involved in the recovery period. If more muscle groups are involved and the recovery is poor, the sequelae will be serious; if less muscle groups are involved and the recovery is good, the sequelae will be mild. The sequelae of polio have the following manifestations: muscle paralysis and limb paralysis are the main manifestations; Limb muscle atrophy and weakness, limb deformation, difficulty in upper and lower limb movement, unstable joints, unequal length of bilateral limbs, etc; Hip joint contracture flexion or relaxation instability, or even dislocation of the hip joint; Knee flexion deformity, lower leg bending inward or outward, etc; The foot can also have various deformities, such as the heel cannot land or the toe cannot land when walking, or the foot may turn inward and walk with the outside of the instep. In addition, deformities can also occur in other parts of the body, such as upper limb deformities, spinal curvature deformities, pelvic tilt deformities, and so on.
