caa a22 4500 605459932 CHVBK 20210128100236.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00167-014-2903-y doi (NATIONALLICENCE)springer-10.1007/s00167-014-2903-y An alternative endoscopic portal for suprascapular nerve approach: an anatomic study [Elektronische Daten] [Gazi Huri, Akin Üzümcügil, Omer Biçer, Hakan Ozturk, Edward McFarland, Mahmut Doral] Purpose: Arthroscopic approaches have been less preferred than open techniques for treating suprascapular nerve entrapment, possibly because current arthroscopic portals are based on distances to reference points, resulting in discrepancies from differing shoulder sizes. This study reports a portal placement based on proportions rather than absolute length. Methods: Open dissection (12 left shoulders) and arthroscopy (12 contralateral shoulders) of the suprascapular notch were performed. In left shoulders, the posterolateral prominence of the acromion, the T1 spinous process, and the suprascapular notch were marked (K-wires). Distances from the posterolateral prominence of the acromion to the suprascapular notch and to the T1 spinous process were measured, and the proportion of those distances (distance to the suprascapular notch/distance to the T1 spinous process) was calculated to indicate the portal's location. In right shoulders, arthroscopy anatomically assessed that proportion's reliability. Results: Median distances from the posterolateral prominence of the acromion to the T1 spinous process and to the suprascapular notch were 175.7mm (average 180.4, SD 11.8mm) and 72.3mm (average 73.9, SD 4.9), respectively. The medians of the proportions of the defined distances were 40.9% (range 40-42%) and 41% (range 39.3-42.1%), respectively. Conclusion: Locating the portal at the lateral, 41% of the distance between the posterolateral prominence of the acromion and the T1 spinous process was accurate and reproducible for suprascapular notch visualization. Clinically, this portal seems to eliminate perioperative morbidity by reducing excessive soft-tissue dissection with a shorter arthroscopic route and avoiding the ligamentous damage. Springer-Verlag Berlin Heidelberg, 2014 Anatomic nationallicence Suprascapular nerve nationallicence Entrapment nationallicence Arthroscopic nationallicence Decompression nationallicence Huri Gazi Division of Shoulder Surgery, The Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, 21287, Baltimore, MD, USA aut Üzümcügil Akin The Department of Orthopedics and Traumatology, Faculty of Medicine, Hacettepe University, Sihhiye, 06532, Ankara, Ankara Province, Turkey aut Biçer Omer The Department of Orthopedics and Traumatology, Faculty of Medicine, Cukurova University, Cukurova University Rectorate, 01330, Balcali, Saricam, Adana, Turkey aut Ozturk Hakan The Department of Anatomy, Faculty of Medicine, Mersin University, Yenisehir, 33343, Mersin, Mersin Province, Turkey aut McFarland Edward Division of Shoulder Surgery, The Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, 21287, Baltimore, MD, USA aut Doral Mahmut The Department of Orthopedics and Traumatology, Faculty of Medicine, Hacettepe University, Sihhiye, 06532, Ankara, Ankara Province, Turkey aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1511-1517 0942-2056 23:5<1511 2015 23 167 https://doi.org/10.1007/s00167-014-2903-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-2903-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Huri Gazi Division of Shoulder Surgery, The Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, 21287, Baltimore, MD, USA aut NATIONALLICENCE 700 1- Üzümcügil Akin The Department of Orthopedics and Traumatology, Faculty of Medicine, Hacettepe University, Sihhiye, 06532, Ankara, Ankara Province, Turkey aut NATIONALLICENCE 700 1- Biçer Omer The Department of Orthopedics and Traumatology, Faculty of Medicine, Cukurova University, Cukurova University Rectorate, 01330, Balcali, Saricam, Adana, Turkey aut NATIONALLICENCE 700 1- Ozturk Hakan The Department of Anatomy, Faculty of Medicine, Mersin University, Yenisehir, 33343, Mersin, Mersin Province, Turkey aut NATIONALLICENCE 700 1- McFarland Edward Division of Shoulder Surgery, The Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, 21287, Baltimore, MD, USA aut NATIONALLICENCE 700 1- Doral Mahmut The Department of Orthopedics and Traumatology, Faculty of Medicine, Hacettepe University, Sihhiye, 06532, Ankara, Ankara Province, Turkey aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/5(2015-05-01), 1511-1517 0942-2056 23:5<1511 2015 23 167