Driving reaction time following periacetabular osteotomy
Shreyas S Chitnis1, Andrew G Marsh2, James A Gillespie3
1Department of Trauma and Orthopaedic Surgery, University Hospital Wishaw, Wishaw, UK.
Summary
Patients undergoing Periacetabular Osteotomy (PAO) for hip dysplasia may not be safe to drive at 6 weeks post-surgery. Return to driving is generally considered safe by 12 weeks after PAO, though individual factors are important.
Area of Science:
- Orthopedic surgery
- Hip dysplasia treatment
- Patient recovery and rehabilitation
Background:
- Periacetabular osteotomy (PAO) is a common surgical procedure for young adults with symptomatic hip dysplasia.
- There is a lack of established guidelines regarding the safe return to driving post-PAO.
- Assessing driving reaction times is crucial for patient safety after orthopedic surgery.
Purpose of the Study:
- To determine the safe timeframe for patients to resume driving after a Periacetabular Osteotomy.
- To evaluate changes in driving reaction times at various postoperative intervals.
- To provide evidence-based recommendations for return-to-driving protocols following PAO.
Main Methods:
- A cohort of patients undergoing PAO who met inclusion criteria were studied.
- Driving reaction times (thinking, action, total) were measured using a driving simulator preoperatively.
- Simulations were repeated at 6 and 12 weeks postoperatively to compare reaction times.
Main Results:
- At 6 weeks post-PAO, patients showed significantly increased mean action and total reaction times compared to baseline.
- By 12 weeks after the procedure, driving reaction times returned to preoperative baseline levels.
- No statistically significant differences in reaction times were observed at 12 weeks compared to preoperative measurements.
Conclusions:
- Patients are generally not considered safe to drive at 6 weeks following Periacetabular Osteotomy.
- A 12-week postoperative period appears to be a safe interval for patients to resume driving after PAO.
- Individual patient recovery and specific factors should be considered when clearing patients to drive.


