High tibial osteotomy is a surgical procedure performed to relieve pressure on the damaged site of an arthritic knee joint. It is usually performed in arthritic conditions affecting only one side of your knee and the aim is to take pressure off the damaged area and shift it to the other side of your knee with healthy cartilage. During the surgery, your surgeon will remove or add a wedge of bone either below or above the knee joint depending on the site of arthritic damage.
High tibial osteotomy is commonly used for patients with osteoarthritis that is isolated to a single compartment (unicompartmental osteoarthritis). It is also performed for treating a variety of knee conditions such as gonarthrosis with varus or valgus malalignment, osteochondritis dissecans, osteonecrosis, posterolateral instability, and chondral resurfacing.
The goal of the surgery is to release the involved joint compartment by correcting the malalignment of the tibia and to maintain the joint line perpendicular to the mechanical axis of the leg. There are two techniques that may be used: closing wedge osteotomy and opening wedge osteotomy. The surgeon determines the choice of the technique based on the requirement of the patient.
Closing wedge osteotomy is the most commonly used technique to perform high tibial osteotomy. In this procedure, the surgeon makes an incision in front of the knee and removes a small wedge of bone from the upper part of the tibia or shinbone. This manipulation brings the bones together and fills the space left by the removed bone. The surgeon then uses plates and screws to bind the bones together while the osteotomy heals. This procedure unloads the pressure off the damaged joint area and helps to transfer some of the weight to the outer part of the knee, where the cartilage is still intact.
In this procedure, the surgeon makes an incision in front of the knee, just below the kneecap and makes a wedge-shaped cut in the bone. Bone graft is used to fill the space of the wedge-shaped opening and if required plates and screws can be attached to further support the surgical site during the healing process. This realignment increases the angle of the knee to relieve the painful symptoms.
Complications following high tibial osteotomy may include infection, skin necrosis, non-union (failure of the bones to heal), nerve injury, blood vessel injury, failure to correct the varus deformity, compartment syndrome and deep vein thrombosis or blood clots.
Synvisc is one of the most commonly used hyaluronan preparations. It is indicated in the management of shoulder, knee, hip, or ankle osteoarthritis that has not responded to non-surgical treatment options such as pain medications, physical therapy, and corticosteroid injections.
Synvisc provides symptomatic relief and delays the need for surgery. It is injected directly into the joint to replenish the diminished synovial fluid, thereby enhancing its lubricating properties. A single dose or a total of three separate doses of Synvisc, over several weeks, may be required for optimum benefit.
Synvisc injection not only supplements the hyaluronan in the joint but also stimulates the production of hyaluronan in the treated knee. This provides gradual symptomatic relief over the course of the injections. This effect may last for several months.
Ice packs and an analgesic may be used, if required, to ease the discomfort. Any strenuous activity such as jogging or tennis should be completely avoided for 48 hours to a week after the injection and should be resumed only after consultation with your doctor.
You may experience mild pain, swelling, warmth, and redness at the injection site for up to 48 hours following a Synvisc injection. Headache and joint stiffness may also occur in some cases.
Immediately consult your doctor if you develop fever or the pain and swelling fail to resolve after 48 hours following the injection.