A bunion is a bony bump that forms on the joint at the base of your big toe. A bunion forms when your big toe pushes against your next toe, forcing the joint of your big toe to get bigger and stick out. The skin over the bunion might be red and sore. Wearing tight, narrow shoes might cause bunions or might make them worse. Bunions can also develop as a result of an inherited structural defect, stress on your foot or a medical condition, such as arthritis. Smaller bunions (bunionettes) also can develop on the joint of your little toes.
Bunions are most often caused by faulty foot mechanics. It is not the bunion itself that is inherited, but certain foot types that make a person prone to developing a bunion. Although wearing shoes that crowd the toes won't actually cause bunions in the first place, it sometimes makes the deformity progressively worse. That means you may experience symptoms sooner.
Often the bunion is not painful and the individual leads a normal active life. Other times the bunion can be very painful, even debilitating. Pain is usually very achy and typically radiates to the toes and along the arch of the foot. Due to the abnormal positioning of the bones in the foot, sharp nerve pains could also be present.
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
Bunions are progressive problems, meaning they tend to get worse over time. Sometimes severe-looking bunions don't hurt much, and sometimes relatively modest-looking bunions hurt a great deal. Thus, treatment varies depending upon a patient's symptoms. You can often improve the discomfort of bump pain by a change to more proper shoes. Alternatively, alterations to existing shoes may improve pain associated with bunions. Accommodative padding, shields and various over-the-counter and custom-made orthopaedic appliances can also alleviate bunion pain. Anti-inflammatory medications, steroid injections, physiotherapy, massage, stretching, acupuncture and other conservative treatment options may be recommended by your podiatric physician to calm down an acutely painful bunion. Long term, orthoses (orthotics) can address many of the mechanical causes of a bunion. Thus, while orthoses don't actually correct a bunion deformity, if properly designed and made, they can slow the progression of bunions. They can also be made to redistribute weight away from pain in the ball of the foot, which often accompanies bunion development. Padding, latex moulds and other accommodative devices may also be effective. While they don't correct the misalignment in the bones, they may alleviate pain. Often, though, when conservative measures fail to alleviate pain associated with the bunion, when you start to limit the types of activities you perform, when it's difficult to find comfortable shoes, and when arthritis changes how you walk, surgery may be the best alternative.
Arthrodesis involves fusing together two bones in your big toe joint (metatarsophalangeal joint). The procedure is usually only recommended for people with severe deformities of the big toe joint, which make it too difficult for doctors to completely fix the joint, or when there's advanced degeneration of the joint. After arthrodesis, the movement of your big toe will be severely limited and you won't be able to wear high heels. An excision arthroplasty involves removing the bunion and the toe joint. A false joint is created by scar tissue that forms as a result of the operation. The procedure involves pinning the joint in place with wires, which will be removed around three weeks after surgery is carried out. An excision arthroplasty can only be used in certain circumstances, and is usually reserved for severe, troublesome bunions in elderly people.