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• Orthopaedic Technologist Responsibilities:
o Assemble and check the fixation frame components.
o Assist in the preparation of placement by ensuring appropriate alignment.
o Monitor pin sites postoperatively for infection or loosening.
• Open Reduction and Internal Fixation (ORIF):
o Involves surgical realignment of fractured bones using plates, screws, and rods.
• External Fixation:
o Uses external pins and rods to stabilize complex fractures.

2. Joint Replacement Surgeries

Joint replacement surgeries, also known as arthroplasties, involve replacing damaged joint
components with prosthetic implants to relieve pain and restore mobility.

a. Total Knee Arthroplasty (TKA)

• Indications: Severe osteoarthritis, rheumatoid arthritis, or traumatic joint damage.
• Procedure:
1. The damaged cartilage and bone are removed from the femur, tibia, and patella.
2. Metal and plastic prosthetic components are cemented or press-fitted into place.
3. The knee is tested for proper alignment and stability before closure.
• Orthopaedic Technologist Responsibilities:
o Ensure proper implant sizing and component availability.
o Assist with limb positioning and application of bone cement.
o Maintain proper handling of prosthetic components to prevent contamination.

b. Total Hip Arthroplasty (THA)

• Indications: Hip arthritis, avascular necrosis, or femoral neck fractures.
• Procedure:
1. The femoral head is removed, and the acetabulum is reamed to prepare for the prosthesis.
2. A metal or ceramic ball is placed on a femoral stem and inserted into the femur.
3. A polyethylene or ceramic cup is implanted in the acetabulum.
4. The hip is repositioned, ensuring proper range of motion before closure.
• Orthopaedic Technologist Responsibilities:
o Prepare and check prosthetic implants.
o Assist in the handling of specialized instruments such as acetabular reamers.
o Assist in proper limb positioning and draping.

c. Shoulder Arthroplasty

• Indications: Severe rotator cuff arthritis, proximal humeral fractures.
• Procedure:
1. The humeral head is removed and replaced with a prosthetic implant.
2. The glenoid cavity may be resurfaced with a polyethylene component.
3. Soft tissues are balanced to restore shoulder function.
• Orthopaedic Technologist Responsibilities:
o Provide appropriate reamers, implants, and alignment guides.
o Assist in maintaining the sterile field and retracting soft tissues.