Retrosternal Percutaneous Tracheostomy: An Approach for Predictably Impossible Classic Tracheostomy

Table 1

Description of the local anatomical problems in our patients.

Anatomical problems	Patients, 𝑛
Hyper-flexion/impossible neck flexion due to:	11
Musculoskeletal deformation	7
Hallow/C-spine fixation after neck injury or surgery	4
Morbid obesity and low larynx	7
Goiter	3
Patients with multiple neck anatomical abnormalities among the 21 patients	2

𝑛: number.