Floria Fines

Overview

A bunion is a ?bump? on the joint at the base of the big toe-the metatarsophalangeal (MTP) joint-that forms when the bone or tissue at the big toe joint moves out of place. The toe is forced to bend toward the others, causing an often painful lump of bone on the foot. Because this joint carries a lot of the body's weight while walking, bunions can cause extreme pain if left untreated. The MTP joint itself may become stiff and sore, making even the wearing of shoes difficult or impossible. A bunion-from the Latin "bunio," meaning enlargement, can also occur on the outside of the foot along the little toe, where it is called a "bunionette" or "tailor's bunion".

Causes
Abnormality in foot function, particularly a pronated foot. This is probably the most important and common causative factor. Family history of bunions. Narrow toed dress shoes and high heels may contribute to the formation of a bunion. Rheumatoid and Psoriatic arthritis. Genetic and neuromuscular disease (eg. Down's,Ehler-Danlos and Marfan's syndromes) resulting in muscle imbalance. Limb length inequality can cause a bunion on the longer limb. Generalized laxity of the ligaments. Trauma to or surgery on the soft tissue structures around the great toe (first metatarsal-phalangeal) joint.
SymptomsA bulging bump on the outside of the base of your big toe. Swelling, redness or soreness around your big toe joint aggravated by footwear. Red, calloused skin along the inside edge of the big toe. Corns or calluses under the ball of the foot or where the first and second toes overlap. Persistent or intermittent pain. Restricted movement of your big toe.

Diagnosis
When an x-ray of a bunion is taken, there is usually angulation between the first metatarsal bone and the bones of the big toe. There may also be angulation between the first and second metatarsal bones. These angular irregularities are the essence of most bunions. In general, surgery for bunions aims to correct such angular deformities.

Non Surgical Treatment
Pain is the main reason that you seek treatment for bunion. Analgesics may help. Inflammation it best eased via ice therapy and techniques or exercises that deload the inflammed structures. Anti-inflammatory medications may help. Your physiotherapist will use an array of treatment tools to reduce your pain and inflammation. These include ice, electrotherapy, acupuncture, deloading taping techniques, soft tissue massage and orthotics to off-load the bunion. As your pain and inflammation settles, your physiotherapist will turn their attention to restoring your normal toe and foot joint range of motion and muscle length. Treatment may include joint mobilisation and alignment techniques, massage, muscle and joint stretches, taping, a bunion splint or orthotic. Your physiotherapist is an expert in the techniques that will work best for you. Your foot posture muscles are vital to correct the biomechanics that causing your bunion to deteriorate. Your physiotherapist will assess your foot posture muscles and prescribe the best exercises for you specific to your needs. During this stage of your rehabilitation is aimed at returning you to your desired activities. Everyone has different demands for their feet that will determine what specific treatment goals you need to achieve. For some it be simply to walk around the block. Others may wish to run a marathon or return to a labour-intensive activity. Your physiotherapist will tailor your rehabilitation to help you achieve your own functional goals. Bunions will deform further with no attention. Plus, the bunion pain associated does have a tendency to return. The main reason is biomechanical. In addition to your muscle control, your physiotherapist will assess your foot biomechanics and may recommend either a temporary off-the shelf orthotic or refer you to a podiatrist for custom made orthotics. You should avoid wearing high heel shoes and shoes with tight or angular toe boxes. Your physiotherapist will guide you.


Surgical Treatment
There are many different procedures described to correct bunions. You should be aware that usually just shaving the bunion off, although it is attractive and minimally invasive, is usually not enough. Initially the foot will look much better but with time the bunion will recur. Arthrodesis refers to surgery performed on the great toe joint where the joint is fused. This is usually reserved for people with very severe deformities when other surgical options are impossible. Bunionectomy refers to the simple removal of the bunion itself. This is seldom used because it doesn?t correct the underlying bone problems. Osteomety is the commonest surgical procedure. The bone is cut and the bones realigned and pinned in place until they heal so that the underlying bone deformity is corrected and the bunion will not recur. The resection arstplasty refers to the removal of the toe joint and this creates a flexible scar that functions as the joint instead. In the past there has been some interest in implanting artificial joints but this has fallen out of favor due to the fact that they usually do not hold up with the normal every day stress that people put their feet through.