Abstract
Introduction: Patients undergoing surgery to the foot frequently ask when it is safe to return to driving. The ability to drive is important both in social and economical terms. There is currently little data in the literature relevant to foot surgery. We are conducting a prospective cohort control study to asess the effect of forefoot surgey on break-response time. Methods- Individuals attending for first MTP joint arthroplasty and SCARF/Chevron osteotomies for hallux valgus are recruited. A driving simulator was constructed consisting of a steering wheel, foot pedals, an LCD display, a CPU and a control unit. The patient follows an image on the LCD screen using the steering wheel. The examiner then randomly initiates the machine and a stop sign is displyed. The patient would then release the accelerator pedal and depress the brake. The CPU claculates the “respone-time”, the “break-time” and total breaking time. In addition the “stick test” and “stand test” were performed as further measures of lower limb function. Each individual was assessed pre-operatively and at 2 and 6 weeks postoperatively. Both drivers and non-drivers are included and a control population of age and gender matched individuals was included for comparison. Results – 25 individuals are currently enrolled as study cases, 12 of which have 2 week follow-up and 3 have completed the study. Control data is being collected.
Conclusion: Early results indiciate that break response time is increased at 2 weeks post-operatively, however this returns to pre-operative levels by 6 weeks. (204ms vs 256ms vs 206ms) These early results may be validated when all individuals have completed the study. Further study of the period 2–6 weeks after surgery will now be subject to study to assess the optimum time to return to driving.
Correspondence should be addressed to the Honorary Secretary, BOFSS, c/o BOA, The Royal College of Surgeons, 35–43 Lincoln’s Inn Fields, London WC2A 3PE.
