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Flaccid paralysis is a neurological condition characterized by weakness or paralysis and reduced muscle tone without other obvious cause (e.g., trauma). [1] This abnormal condition may be caused by disease or by trauma affecting the nerves associated with the involved muscles.
A limp is a type of asymmetric abnormality of the gait.Limping may be caused by pain, weakness, neuromuscular imbalance, or a skeletal deformity. The most common underlying cause of a painful limp is physical trauma; however, in the absence of trauma, other serious causes, such as septic arthritis or slipped capital femoral epiphysis, may be present.
During the stance phase, or when standing on one leg, the weakened abductor muscles (gluteus medius and minimus) on the side of the supporting leg allow the opposite hip to droop. To compensate, the trunk lurches to the weakened side to maintain the center of gravity over the supporting leg. This produces a characteristic "waddling" gait.
Pusher syndrome is a clinical disorder following left- or right-sided brain damage, in which patients actively push their weight away from the non-hemiparetic side to the hemiparetic side. This is in contrast to most stroke patients, who typically prefer to bear more weight on their nonhemiparetic side.
Sudden arrhythmic death syndrome (SADS) is a sudden unexpected death of adolescents and adults caused by a cardiac arrest. However, the exact cause of the cardiac arrest, and thus the exact cause of death, is unknown. These deaths occur mainly during sleep or at rest. [7] One type of conduction defect known as Brugada syndrome can be ...
If the patient compensates for this weakness by tilting their trunk/thorax to the affected side, then the pelvis will be raised, rather than dropped, on the side opposite to the stance leg. Ergo, in the same situation, the patient's hip may be dropped or raised, dependent upon whether the patient is actively compensating or not.
Compartment syndrome is a serious condition. [5] Increased pressure in a body compartment can harm blood flow and tissue function. [5] [6] [7] If not treated quickly, it may cause permanent damage. [7] There are two types: acute and chronic. [8] Acute compartment syndrome can lead to a loss of the affected limb due to tissue death. [6] [9]
The infantile-onset form is usually diagnosed at 4–8 months; muscles appear normal but are limp and weak preventing the child from lifting their head or rolling over. As the disease progresses, heart muscles thicken and progressively fail. Without treatment, death usually occurs due to heart failure and respiratory weakness. [5]