Bunions involve boney prominences and repositioning of the joints at the base of the big toes. Bunions most commonly affect the inner foot at the base of the big toe but also can affect the outside of the foot at the base of the little toe, referred to as a bunionette or tailor's bunion. Bunions most commonly affect women. Bunions may or may not cause symptoms. Treatment of bunions can include rest, icing, alteration offootwear, foot supports (orthotics), medications, steroid injections, and or surgery.
The exact cause of bunions is unknown, but they tend to run in families. Wearing badly fitting shoes is thought to make bunions worse. It's also thought that bunions are more likely to occur in people with unusually flexible joints, which is why bunions sometimes occur in children. In some cases, certain health conditions, such as rheumatoid arthritis and gout, may also be responsible.
Bunions typically start out as a mild bump or outward bending of the big toe. Bunions at this stage are usually only a concern of appearance at this stage, and at this point they often don't hurt much. Over time, the ligaments that connect the bones of the toe stretch out, and the tendons attaching to the big toe gradually pull it farther and farther towards the second toe. Sometimes patients will find their first and second toes begin to press together too much, and they'll often get a painful corn between those toes. As the bunion progresses, the big toe may begin to ride on top of the second toe, or vice versa, creating a second deformity. Others will develop bump pain at the site of the bony enlargement on the side of the foot. A painful bursa may develop at that site. This is particularly true in tight shoes. Many patients also develop a painful callus beneath the foot. Capsulitis and other types of metatarsalgia may develop in the joints beneath these calluses, particularly in the second and third metatarsophalangeal joints (the joints in the ball of the foot). Over time, with the toe held in a crooked position for enough time, arthritis develops in the big toe joint. This will usually result in decreased range of motion of that joint (a condition known as "Hallux Limitis"), which as a result, often causes the patient to changes in the way a patient walks. Often the patient walks in an "out-toed", or duck-like, fashion, which very frequently causes secondary pain in the legs, knee, hip, and low back.
Orthopaedic surgeons diagnose bunions on the basis of physical examination and weight bearing x-rays. Two angles are assessed, the intermetatarsal angle, that is between the first and second metatarsals (the bones that lead up to the base of the toes). If this angle exceeds 9? (the angle found in the healthy foot) it is abnormal and referred to as metatarsus primus varus. the hallux valgus angle, that is, the angle of the big toe as it drifts toward the small toe. An angle that exceeds 15? is considered to be a sign of pathology.
Non Surgical Treatment
Wearing the right shoes, using shoe inserts (orthoses) and padding, and taking painkillers can all help to ease your symptoms of a bunion. However, these treatments can?t cure a bunion or stop it getting worse. If you have severe pain or discomfort from a bunion, you may be advised to have an operation to correct it. One of the most important things you can do is to wear the right footwear. You should try to wear flat, wide-fitting shoes with laces or an adjustable strap that fits you properly. You may also want to place a bunion pad over your bunion to give it some protection from the pressure of your shoes. You can usually buy these pads from a pharmacy, or get them from your podiatrist or chiropodist. He or she may also recommend a shoe insert, which can be moulded specifically to your foot. Shoe inserts aim to reduce the pain of your bunion by improving how you walk. You can take over-the-counter painkillers, such as paracetamol or ibuprofen, to help relieve the pain and inflammation of your bunion. Always follow the instructions in the patient information leaflet that comes with your medicine. Medicines give temporary relief but they won?t be able to cure your bunion or prevent it from getting worse. If you have a bunion as a result of underlying arthritis, your doctor may prescribe specific medicines to treat this.
If all nonsurgical measures fail to control the symptoms, then surgery may be suggested to treat the hallux valgus condition. Well over 100 surgical procedures exist to treat hallux valgus. The basic considerations in performing any surgical procedure for hallux valgus are to remove the bunion, to realign the bones that make up the big toe, to balance the muscles around the joint so the deformity does not return.