Q: I am a 75-year-old female and in good health. A neurologist recently diagnosed me with foot drop, telling me it was caused from crossing my legs. It is difficult for me to walk and the more I walk, the more tired I get, like I am dragging a log with me. I have had 10 physical therapy treatment including massage, ultrasound and more. Yesterday I received an acupuncture treatment. This began around six months ago. Two months ago the knee became sensitive when bending it. To date my knee is improving slightly but my foot is still flopping.
Can you put any light on this subject and recommend a cure?
A: Foot drop (or drop foot) is a gait abnormality that occurs because of weakness or damage to the common fibular nerve or paralysis of the muscles in the anterior portion of the lower leg. It can be caused by nerve damage alone, by trauma to the spinal cord, muscle trauma, toxins, or disease. While not a diagnosis, it is most frequently a symptom of an underlying issue. The condition may be temporary or permanent and bilateral or unilateral depending on the extent of paralysis or muscle weakness. When the individual attempts to walk, the raised leg will often be bent at the knee. Because of the bent knee approach, an individual may walk on tiptoes or with a wide outward swing of the affected leg(s). It will be difficult for the individual to walk on his or her heels, simply because of the inability to lift the front of the foot off the ground. Diagnosis may therefore be made during a routine examination when the physician watches the individual walk. If questions remain, testing including an MRI, EMG or MRN may be ordered to help determine the underlying cause for making the diagnosis.
Diseases that can result in foot drop may include amyotrophic lateral sclerosis (ALS), muscular dystrophy, multiple sclerosis, cerebral palsy, Friedreich’s ataxia, Charcot Marie Tooth disease, hereditary spastic paraplegia, and stroke. The condition can even occur following hip surgery and is known to occur following squatting for long periods at a time or from crossing the legs.
Treatment will begin by determining the underlying cause for the foot drop. For example, if it is the result of injury to a peripheral nerve, a relatively simple operation might be performed whereby the pressure on the peripheral nerve is eliminated. If spinal disc herniation in the lower back area is found to be impinging on the nerve that makes the leg function, surgery can be performed to either remove the herniated disc, opening the foramen, or in more difficult instances, a combination of both procedures with or without fusion to avoid movement. If the procedure or procedures are insufficient, nerve transfers might be used by taking branches of the tibial nerve. On the downside, recovery is extensive and may take up to a year.
Non-surgical treatments may include exercise, over-the-counter anti-inflammatory drugs, and functional electrical stimulation, and epidural injections for spinal stenosis. Fractures of the vertebra may include a back brace, while molded plastic devices can stabilize ankles.
Your physician has apparently or hopefully been willing to consider all possibilities of treatment. Make an appointment to speak with him or her to determine if your expectations for recovery are reasonable or if you should consider other options such as a second opinion or need to be patient for a while longer to allow the healing process to be complete.