There are a number of potential causes of Hornerâs syndrome, each affecting a different place in the sympathetic chain: 1  First order neuron lesion: brainstem stroke. 2  Second order neuron lesion: apical lung tumor, neck trauma, other. 3  Third order neuron lesion: orbital trauma or inflammation, carotid dissection, other.
In very severe cases where the patella keeps dislocating, the attachment of the patellar tendon may also have to be moved. Once the surgery heals, the patella will track up and down in the patellar groove, reducing pressure on the articular cartilage. 1  Knee Pain: Symptoms, Causes, and Treatments.
Alignment of Knees, Ankles, and Feet and How to Overcome Fallen Arches. Alignment. Alignment refers to the way the axes of the bones line up. Correct alignment is essential for (1) avoiding damaging pressure on the weaker parts of joints and (2) shear stress 1 on the ligaments, (3) lowering your susceptibility to acute (sudden) injury, (4) balance, and (5) mobilization of strength.