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Cement interface temperature in hip arthroplasty.

S Toksvig-Larsen¹, H Franzen, L Ryd

¹Lund University Hospital, Department of Orthopedics, Sweden.

Acta Orthopaedica Scandinavica

|April 1, 1991

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This study measured bone-cement interface temperatures during hip replacements. Modern techniques kept peak temperatures below harmful levels, with precooled prostheses showing no significant impact.

Area of Science:

Orthopedic Surgery
Biomaterials Science
Surgical Technology

Background:

Bone-cement interface temperature is a critical factor in total hip replacement (THR) outcomes.
Elevated temperatures during cement curing can potentially cause thermal damage to bone tissue.
Minimizing exothermic heat generation during acrylic bone cement polymerization is essential for patient safety.

Purpose of the Study:

To quantify the peak temperatures experienced at the bone-cement interface during total hip replacement surgery.
To evaluate the effectiveness of a modern surgical technique in managing intraoperative temperatures.
To determine the influence of a precooled femoral prosthesis on peak interface temperatures.

Main Methods:

Temperature monitoring using thermocouples at the bone-cement interface in 30 total hip replacement (THR) procedures.

Related Experiment Videos

Implementation of a modern surgical technique involving lavage and precooled vacuum-mixed cement.

Comparison of peak temperatures in the acetabulum and femur, with and without a precooled femoral prosthesis.

Main Results:

The mean maximum temperature in the acetabulum reached 43°C (range: 38-52°C).
The mean maximum temperature in the femur reached 40°C (range: 29-56°C).
Utilizing a precooled femoral prosthesis did not significantly alter the peak temperatures observed at the interface.

Conclusions:

The employed modern surgical technique effectively controlled bone-cement interface temperatures during total hip replacement.
Observed peak temperatures are within generally accepted safe limits, minimizing risk of thermal necrosis.
Precooling the femoral prosthesis does not appear to be a critical factor in reducing peak exothermic temperatures during cement curing in THR.