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QUESTION 1 OF 6

An 80-year-old female patient attends the arthroplasty follow up clinic complaining of nonspecific left hip pain.
The appearance of the left uncemented femoral stem calcar (Figure 4.1) would have been minimised by using:

hip.jpg

Radiograph left calcar

QUESTION ID: 1163

1. A. A Co-Cr alloy
2. B. A round stem
3. C. A shorter stem length
4. D. A tapered stem
5. E. Avoiding flutes

QUESTION 2 OF 6

Postoperative radiographic femoral offset measurements of a patient following THA suggest an excessive femoral offset.

Offset 3.jpg

Figure 1.Anteroposterior(AP) radiograph hip 
Consequences of an excessive femoral offset include:

QUESTION ID: 1164

1. A. Abductor weakness
2. B. Increased likely of using a walking aid
3. C. Increased hip joint reaction forces
4. D. Instability
5. E. Trochanteric pain

QUESTION 3 OF 6

A 72-year-old female attends the arthroplasty follow up clinic Her anteroposterior (AP) radiograph is shown below (Figure 4.2). She has lower back pain and non-specific left hip pain.

hip ii.jpg

The appearance will:

QUESTION ID: 1165

1. A. Affect implant survival
2. B. Depends on stem stiffness
3. C. Lead to increased rates of osteolysis
4. D. Leads to mid-thigh pain
5. E. Results in loosening of the implant

QUESTION 4 OF 6

An 87-year-old. female attends clinic complaining of a 2-week history of hip pain on weight bearing, groin tenderness on rotation. No history of injury. Her radiographs are shown below 

Figure 4.3Q.LR.jpg 

Figure 1.Anteroposterior(AP) radiographs pelvis
The most likely diagnosis would be:

QUESTION ID: 1167

1. A. Age related osteoporosis
2. B. Osteolysis
3. C. Osteomyelitis
4. D. Stress shielding
5. E. Tumour

QUESTION 5 OF 6

Regarding MoM resurfacing biomechanics.

Contact Patch to Rim Distance (CPRD) is most influenced by:

QUESTION ID: 1184

1. A. Arc of cover
2. B. Cup inclination angle
3. C. Cup version angle
4. D. Femoral head diameter
5. E. Head-cup clearance

QUESTION 6 OF 6

In the team brief before surgery the lead surgeon is concerned about the dislocation risk in a patient with early cognitive impairment. The plan of action is to use a large 36mm femoral head. The rationale being that a larger femoral head will increase the jump distance.
Factors known to increase the jump distance include

QUESTION ID: 1185

1. A. Decreased femoral head offset
2. B. Increase in cup anteversion angle
3. C. Increased abduction angle
4. D. Polyethylene liners with an offset
5. E. Smaller acetabular hemisphere