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Y sign: new landmark for anteromedial portal placement in knee arthroscopy

  • Anatomic Bases of Medical, Radiological and Surgical Techniques
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Abstract

Purpose

During arthroscopy training process, determination of anteromedial portal is more difficult in contrast with anterolateral portal and frequently results in suboptimal position, and longer operating times. The aim of our study was to identify an anatomical landmark which could facilitate anteromedial portal placement.

Methods

The relationship of the cutaneous veins at the anteromedial side of the knee was analysed regarding the optimally placed anteromedial portal and anatomical landmarks of the anteromedial part of the knee in 70 patients undergoing knee arthroscopy. The study was designed as case series.

Results

In 70% of the patients, the joining of the cutaneous veins was seen after transillumination resembling Y letter. In the remaining 30% of patients, a solitary vein with a curve which corresponds to the joining point was observed. The curve and the joining was located adjacent to optimally placed anteromedial portal measured 2 cm ± 0.3 from the medial patellar tendon border, and 1.1 cm ± 0.1 from the palpable edge of the medial tibial plateau.

Conclusions

The “Y sign” can assist knee arthroscopy trainees in anteromedial portal placement, with the resulting avoidance of multiple puncturing of the skin with the needle, shorter operating room times to find the optimal portal placement, and potential reduction of damage to intraarticular structures.

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Funding

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Authors and Affiliations

  1. Clinic for Orthopaedic Surgery Lovran, Medical Faculty, University of Rijeka, Šetalište maršala Tita 1, HR-51415, Lovran, Croatia

    Gordan Gulan & Hari Jurdana

  2. Department of Anatomy and Neuroscience, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 10E, HR-31000, Osijek, Croatia

    Antun Šumanovac

  3. Department of Orthopaedics and Traumatology, County General Hospital Vinkovci, Zvonarska 57, HR-32100, Vinkovci, Croatia

    Antun Šumanovac

  4. University Hospital Rijeka, Medical Faculty, University of Rijeka, Krešimirova 42, HR-51000, Rijeka, Croatia

    Leo Gulan

Authors
  1. Gordan Gulan
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  2. Antun Šumanovac
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  3. Hari Jurdana
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  4. Leo Gulan
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Contributions

GG—project development, data collection, manuscript editing. AŠ—project development, data collection and management, data analysis, manuscript writing and editing. HJ—project development, manuscript editing, data analysis. LG—manuscript writing, data analysis, data collection.

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Correspondence to Antun Šumanovac.

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The authors declare that they have no conflict of interest.

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Gulan, G., Šumanovac, A., Jurdana, H. et al. Y sign: new landmark for anteromedial portal placement in knee arthroscopy. Surg Radiol Anat 41, 1455–1459 (2019). https://doi.org/10.1007/s00276-019-02281-0

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  • DOI: https://doi.org/10.1007/s00276-019-02281-0

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