Better outcomes seen in patients who had intraoperative pedography
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VANCOUVER, British Columbia — Results from a level I study showed that in nearly 50% of cases, surgeons modified their corrections in foot and ankle arthrodeses after using intraoperative pedography during the same procedure.
The study also revealed that patients who underwent intraoperative pedography had significantly better clinical outcomes at 2 years follow-up than those who did not.
“The best thing is that bad feet could be 'erased' or could be detected intraoperatively and could be changed,” Martinus Richter, MD, PhD, said during his presentation at the 25th Annual Summer Meeting of the American Orthopaedic Foot & Ankle Society (AOFAS), here. Richter, who is the inventor of the intraoperative pedography device, and his colleague Stefan Zech, MD, received the Leonard J. Goldner Award for the study.
The investigators prospectively studied 100 patients who underwent foot and ankle arthrodesis and/or correction arthrodesis, and were randomized to receive either intraoperative pedography or no intraoperative pedography. Intraoperative pedography was used after surgeons considered their corrections to be optimal based on their experience, clinical examination and imaging.
The intraoperative pedography group included 52 patients, and 48 patients were in the control group. The investigators found no significant differences between the groups regarding demographics or preoperative scores using the AOFAS and Visual Analog Scale Foot and Ankle (VAS FA) scales and an SF-36 scale that was standardized to a 100-point maximum score.
The investigators discovered that the surgical correction was modified in 46% of patients in the study group after intraoperative pedography was performed during the same procedure. Most changes were made during midfoot (64%) and forefoot (50%) procedures.
After conducting a repeated intraoperative pedography, the investigators also found that no further changes to the correction were made during the procedure. They also reported no cases of malfunction or complications related to intraoperative pedography.
In addition, they discovered that patients in the intraoperative pedography group had significantly better AOFAS, VAS FA and SF-36 scores than the control group at 2 years follow-up.
Reference:
- Richter M, Zech S. Analgesia for foot and ankle surgery with sciatic nerve block using ultrasound guidance: A prospective study of 200 patients. Presented at the 25th Annual Summer Meeting of the American Orthopaedic Foot and Ankle Society. July 15-18, 2009. Vancouver, British Columbia.