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. 2025 Aug;15(8):345-349.
doi: 10.13107/jocr.2025.v15.i08.5990.

Cadaveric Study on the Safety of Medial versus Anterocentral Portals in Ankle Arthroscopy: A Comparative Analysis

Arvind Karoria  1 , Mayank Pratap Singh  2 , Deependra Dubey  1 , Ashish Gohiya  3
Affiliations

Cadaveric Study on the Safety of Medial versus Anterocentral Portals in Ankle Arthroscopy: A Comparative Analysis

Arvind Karoria et al. J Orthop Case Rep. 2025 Aug.

Abstract

Introduction: The medial midline portal and anterocentral both are not standard portals for ankle arthroscopy, but they provide a wide field of vision.

Aims: The aim of this study was to compare anatomical safety between medial midline and anterocentral portal in arthroscopy in respect to the least injury to adjacent structures.

Materials and methods: 20 cadaveric ankles were dissected and related anatomical structures were measured from anterocentral and medial midline portals.

Results: The dorsalis pedis artery (DPA) was at a mean distance of 10.08 mm, the deep peroneal nerve was at 16.20 mm, the tibialis anterior tendon was at 2.41 mm, and the extensor hallucis longus (EHL) tendon was at 2.62 mm from the medial midline portal. The EHL tendon was injured in two specimens during portal placement. The anterocentral portal was placed at a mean distance of 2.38 mm from the DPA, 7.09 mm from the superficial peroneal nerve, and 4.12 mm from the deep peroneal nerve.

Conclusion: Our study demonstrated that the anterocentral portal is safer than the medial midline portal for ankle arthroscopy. While there is a high risk of tendon injury in the medial midline portal.

Keywords: Anatomy of ankle; ankle arthroscopy; anterocentral portal; medial midline portal.

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Conflict of interest statement

Conflict of Interest: Nil

Figures

Figure 1
Figure 1
Anterocentral and medial midline portals.
Figure 2
Figure 2
(a) Injecting saline in the joint. (b) Wooden markers over the portal site. (c) Neurovascular structures after dissection. (d) Measurement from portal to anatomical structure.
See this image and copyright information in PMC

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References

    1. Jackson RW. From the scalpel to the scope:The history of arthroscopy. Proc (Bayl Univ Med Cent) 1996;9:77–9.
    1. Andrews JR, Previte WJ, Carson WG. Arthroscopy of the ankle:Technique and normal anatomy. Foot Ankle. 1985;6:29–33. - PubMed
    1. Barber FA, Britt BT, Ratliff HW, Sutker AN. Arthroscopic surgery of the ankle. Orthop Rev. 1988;17:446–51. - PubMed
    1. Dias S, Lewis TL, Alkhalfan Y, Ahluwalia R, Ray R. Current concepts in the surgical management of chronic ankle lateral ligament instability. J Orthop. 2022;33:87–94. - PMC - PubMed
    1. Shimozono Y, Seow D, Kennedy JG, Stone JW. Ankle arthroscopic surgery. Sports Med Arthrosc Rev. 2018;26:190–5. - PubMed

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