Side Effects of Total Knee Replacement

A total knee replacement replaces the damaged knee with metal and plastic in an in-patient procedure that typically takes about two hours. The surgery is usually performed as a last resort if physical therapy and medication do not help knee pain.

Infection

• The chance of infection is less than one percent. Antibiotics are given to decrease the likelihood of infection. After surgery, infection is more likely in patients with other chronic illnesses.

Blood clots

• Blood clots are the most common side effect. Clots are most dangerous because of their ability to travel to the lungs. Heart attack and stroke are potential side effects of most surgeries. Either can occur when a blood clot in the leg travels to the chest. Blood-thinning drugs are prescribed to reduce the chance of clots forming.

Knee scarring

• Knee scarring can occur around the area of incision and the soft tissue. Large amounts of scarring can cause discomfort in moving and bending the knee. Scars will heal on their own--the need for the surgical removal of scar tissue is very rare.

Nerve injury

• Nerve injury is extremely rare and sensation to the nerves usually returns within a few months to a year.

Physical Therapy and Recovery

• Physical therapy is generally two to three outpatient or home sessions for six to eight weeks with a physical therapist. Within three to six weeks of surgery, most patients are able to return to normal activities. Pain is to be expected for the first few weeks; follow the surgeon's discharge instructions to aid in your recovery.