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ORIGINAL ARTICLE
Year : 2021  |  Volume : 70  |  Issue : 2  |  Page : 69-74

Anatomical considerations regarding the posterior interosseous nerve for surgical approaches in the proximal forearm: A cadaveric study


Department of Anatomy, Christian Medical College, Vellore, Tamil Nadu, India

Correspondence Address:
Dr. Bina Isaac
Department of Anatomy, Christian Medical College, Vellore - 632 002, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JASI.JASI_242_19

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Introduction: The posterior interosseous nerve (PIN) is at risk of injury when surgical procedures are undertaken in the proximal forearm. The aim of the present study was to determine the relationship of the PIN to adjacent anatomical landmarks, which can be used to prevent iatrogenic injury to the nerve. Material and Methods: Forty upper extremities were used for this study. The landmarks used to measure the required parameters were intercondylar reference point, styloid process of ulna, proximal and distal borders of superficial layer of supinator muscle, and head of radius. The number of trunks of PIN and the innervation pattern of supinator muscle were studied. Results: The mean values and standard deviations of the measurements obtained were determined. There was no statistical difference of data between right and left sides. Discussion and Conclusion: The data obtained in the study will be of use to surgeons and orthopedicians during interventional procedures on the proximal part of radius and in decompression procedures of the PIN.


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