Quality of MIS vs Open Joint Preparations of the Foot and Ankle

NewsBot · Apr 8, 2022

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Quality of MIS vs Open Joint Preparations of the Foot and Ankle
John Z Zhao et al
Foot Ankle Int. 2022 Apr 5

Background: Minimally invasive surgery (MIS) is growing in the field of foot and ankle, and the MIS burr is an emerging tool. Although commonly used to perform osteotomies, the burr can also be used for arthrodesis joint preparation that traditionally would be performed through open incisions. To date, there is no study comparing the quality of joint preparation between using a fluoroscopy-guided MIS technique compared to traditional open techniques. The goal of this cadaveric study is to compare the percentage of joint surfaces prepared between MIS and open techniques for the most common joints that are fused in foot and ankle surgery.

Methods: Open joint preparation was performed under direct visualization with open incisions. MIS joint preparation was performed percutaneously using fluoroscopic guidance alone, without arthroscopy. After joint preparation, cadaveric samples were disarticulated, and joint surfaces were analyzed for percentage of cartilaginous surface removed. The percentage of joint surface prepared was compared between the open and MIS techniques.

Results: Ten cadaveric samples were used for the MIS technique and 5 samples for the open technique. Percentage of joint surface prepared was similar for all joint surfaces.

Conclusion: The MIS technique in the hands of experienced surgeons was found to provide overall similar percentages of surface area prepared compared to traditional open techniques.

Clinical relevance: MIS joint preparation may be useful for specific patient populations. This study suggests that MIS joint preparation is a reasonable, and possibly advantageous, alternative to open preparation in arthrodesis surgery when performed by experienced MIS surgeons.
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NewsBot · Apr 8, 2022

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