Anatomic Landmarks for a Safe Arthroscopic Approach to the Deep Gluteal Space: A Cadaveric Study

To determine the morphometric landmarks and anatomical variants relevant to arthroscopic approach deep gluteal space. Twenty spaces from cadaveric specimens were dissected. The of sciatic nerve (SN) determined according Beaton Anson classification. A study distances in subgluteal space was carried out define references achieve a safe for piriformis syndrome [GT-SN=Distance greater trochanter (GT) SN emergence; GT-IT=Distance GT ischial tuberosity (IT); GT-IGA=distance inferior artery (IGA) IT-SN=distance IT IT-IGA=distance IGA]. showed most frequent pattern with an undivided coming pelvis below muscle (Beaton type A) 16 (80 %). common peroneal emergence through (PM) tibial being located at lower margin B) observed 4 (20 measurements surgical area were: GT-SN=7.23 cm (±8.3); GT-IT=8.56 (±0.1); GT-IGA=8.46 (±0.97); IT-SN=5.28 (±0.73), IT- IGA=5.47 (±0.74). When planning surgery adult patients, fact that is approximately 7 5 must be considered.