Computer-assisted two-dimensional preoperative planning for total hip arthroplasty: clinical evaluation

Area of Science:

• Orthopedic Surgery
• Medical Imaging
• Surgical Planning

Background:

• Accurate preoperative planning is crucial for successful cementless total hip arthroplasty (THA).
• Traditional manual planning methods can be time-consuming and may have limitations in simulating complex scenarios.
• Advancements in digital technology offer potential improvements in surgical planning accuracy and efficiency.

Purpose of the Study:

• To clinically validate a novel two-dimensional (2D) preoperative planning software for cementless total hip arthroplasty (THA).
• To compare the accuracy and outcomes of 2D computer-assisted planning against traditional manual planning methods.

Main Methods:

• A prospective study involving 30 patients undergoing cementless THA for osteoarthritis.
• Independent observer comparison of manual preoperative plans versus 2D computer-assisted preoperative plans for each patient.
• Evaluation metrics included stem size, neck length, and hip rotation center position.

Main Results:

• No statistically significant differences were observed between manual and 2D computer-assisted planning for stem size and neck length (within 1 size).
• Hip rotation center positioning showed comparable results between both planning methods (within 5 mm).
• The 2D software facilitated easy simulation of various stem designs.

Conclusions:

• The validated 2D preoperative planning software provides results comparable to manual procedures for cementless THA.
• This technology offers a viable and efficient alternative for surgical planning, enabling surgeons to explore different implant options.
• The software supports successful clinical outcomes in THA by enhancing preoperative simulation capabilities.