Purpose:
A shoulder replacement surgery may be performed in the following cases:
- Osteoarthritis or wear-and-tear arthritis (wearing down of the protective tissue at the bone ends, known as the cartilage)
- Rotator cuff (group of muscles and tendons that surround the shoulder joint) injuries
- Fractures of the humerus (due to the failure of previous surgery for fracture fixation or an injury)
- Rheumatoid arthritis (a chronic inflammatory disorder in which the immune system of the body attacks the joints and internal organs)
- Osteonecrosis (death of bone tissue due to reduced blood supply)
- Other inflammatory conditions
Symptoms:
The following symptoms may indicate the need for a shoulder replacement surgery:
- Severe shoulder pain
- Shoulder stiffness
- Pain limiting everyday activities like bending or walking
- Inability to move or lift
- Severe pain that is not relieved by the use of anti-inflammatory medications or drugs
- Shoulder joint fracture
The following tests and diagnostic methods are used in order to diagnose problems with the shoulder bone:
- Medical history- the orthopedic surgeon would ask questions about the patient’s general health, family history, severity and extent of pain, the extent to which the condition inhibits physical activity etc.
- Physical exam- the doctor would conduct a physical exam to check for shoulder alignment, strength or stiffness. Shoulder's mobility and range of motion will also be checked.
- X-rays- X-rays would help in determining the extent of damage or deformity by looking for structural changes, signs of joint erosion, cartilage loss or tissue tear, inflammation etc.
- Other tests- other tests such as a magnetic resonance imaging (MRI) scan may also be needed to determine the condition of the bone of the shoulder.
- The procedure is generally done under general anesthesia, that is, the patient is put to sleep during the procedure.
- A 4 to 10 inches long incision is made near the shoulder area.
- The damaged bone and attached cartilage are now cut out.
- The shoulder blade socket is then resurfaced.
- The shoulder joint is replaced using a plastic or metal prosthesis.
- The procedure takes approximately two to three hours to complete.
The following complications can occur due to a shoulder replacement surgery:
- Shoulder joint dislocation
- Bone fracture
- Implant prosthesis loosening
- Rotator cuff muscles failure
- Nerve damage
- Blood clot formation
- Bleeding
- Infection
- Allergic reaction to the anesthesia
- Pain that does decrease or go away
- Need for another surgery
- The patient generally goes home one to three days after the surgery.
- The patient is prescribed pain-relieving medications to ease the pain and discomfort after the procedure.
- Physiotherapy is provided to the patient in the hospital to prevent the stiffness of the muscles around the shoulder region.
- The patient will be taught how to move around the operated arm by using the non-operated arm.
- The operated arm needs to stay in a sling for two to six weeks after the surgery.
- The patient is instructed to avoid lifting heavy objects and performing strenuous activities involving pulling or pushing after the surgery.
- Most patients are able to resume their daily activities two to six weeks after the procedure.
- The patient is instructed to avoid driving for about six weeks after the procedure.
- Home exercises are taught to the patient to aid in quick recovery.
- Vigorous activities like swimming or golfing can be resumed six months after the surgery.