The most frequent foot problems arise from the big toe. With a bunion, or hallux valgus, this means a deviation of the metatarsophalangeal joint of the big toe towards to little toe.The second toe lying next to it often takes on a deformed shape.The bunion is often caused by an inherited defect but tight shoes may encourage the deformity. Unusual strain on the foot leads to spreading apart of the first two metatarsals so that the head of the first metatarsal stands out. It is the head of the metatarsal, rather than a bony growth that forms the “bunion”. Depending on the level of severity, a number of surgical procedures may be used.
After a certain time a bunion can develop into more than just a cosmetic problem. It can become painful and lead to other symptoms involving the leg.Initially, attempts should be made to avoid surgery, as surgical procedures can also lead to complications.Appropriate shoes, inserts, suitable cushioning of the bunion and physiotherapy can be helpful in the early stages. With elderly people especially, all conservative measures should first be exhausted.
Chevron Osteotomy - Dr. Kai Olms
This video depicts a correction of a hallux valgus deformity using a chevron/austin osteotomy, a v-shaped osteotomy of the distal metatarsal. The demonstration is performed by Dr. Kai Olms. Fixation of the osteotomy is achieved using a Stryker Asnis Micro 3.0 cannulated screw.
Akin Osteotomy - Dr. Kai Olms
This video depicts a cadaveric surgical procedure of an Akin Osteotomy. This is a medial closing wedge osteotomy performed by Dr. Kai Olms on the proximal phalanx of the hallux using an Asnis Micro 2.0mm cannulated screw.
Lapidus Procedure - Dr. Kai Olms
This video depicts a correction of a hallux valgus deformity using a lapidus procedure, a fusion of the first metatarsal with the medial cuneiform. The demonstration is performed by Dr. Kai Olms. The procedure uses a Stryker Asnis III 4.0mm cannulated screw and a VariAx foot oblique t-plate.
Scarf Akin Osteotomy | Animation
This video depicts a Scarf Akin Osteotomy. This is a procedure consisting of two osteotomies being used in conjunction to correct a hallux valgus deformity.