Along with the conditions caused by flat feet, arthritic conditions such as rheumatoid arthritis may cause flat feet. When this occurs people can experience pain in the foot along with narrowing of the joint space and degenerative bone disease. Flat feet and fallen arches may cause foot pain or ankle pain, but proper attention from a physician or surgeon may address the issue. While many patients with metatarsalgia feel pain where their metatarsal bones join their toe bones, some also feel pain along the entire length of the metatarsals and possibly between them. This pain can vary from mild to severe, depending on the cause of the condition. The boutonniere deformity is a disruption of the normal anatomic alignment provided to the extensor mechanism of the finger involving the central slip. Either traumatic or inflammatory causes of the deformity lead to the finger being in flexion at the proximal interphalangeal joint and in hyperextension at the distal phalangeal joint. The deformity can occur immediately after the injury or take a few weeks to develop. In inflammatory causes of the deformity, there is a progression of the deformity as the synovitis causes elongation. Rest - doctors may advise some patients to rest and avoid activities which may make the foot (feet) feel worse, until the foot (feet) feels better. Laminectomy, also referred to as a decompression, is the surgical removal of the lamina (hard covering of the spinal canal). Laminectomy is typically preformed on individuals who have been diagnosed with spinal stenosis. In some cases, a laminectomy might be performed during a repair of disk herniation. Removal of the lamina enlarges the spinal canal area, relieving pressure on nearby nerves. A six- to 12-week recovery period is typical after a laminectomy. Compartment syndrome of the lower legs, or chronic exertional compartment syndrome, is a condition that causes pain in the lower leg muscles during exercise. Several tests are used to diagnose compartment syndrome. Hyperkalemia is a condition that occurs when compromised kidney function leads to excessive levels of potassium in the bloodstream. This buildup triggers a mineral imbalance in the body that can degrade the function of the heart. Acute hyperkalemia is a critical manifestation of this disorder, and left untreated it may result in cardiac arrest and death. Treatment for acute hyperkalemia includes steps to protect the body and lower potassium levels. Thrombus is the term used to describe a blood clot that forms in the heart or a blood vessel. When a thrombus forms in the deep veins of the body, it can trigger a condition called deep vein thrombosis (DVT). Currently, the most commonly prescribed children's foot orthotic is the UCBL. Named for the University of California at Berkley Laboratory, where it was first developed, the UCBL is a rigid thermoplastic foot orthotic with an extra-deep heel cup (30mm+/-) and high medial and lateral walls extending distally toward the metatarsal heads. The UCBL provides classic "arch support" as it cradles the medial column and also controls the entire rearfoot. Further correction can be achieved by adding either a medial Kirby-type heel skive to the cast or a medial extrinsic post to the shell. Gait plates with lateral extensions, to correct in-toe.