The purpose of this study was to record the basic morphometric values of the
acromion. Forty-four pairs of dried scapulas were reviewed. Acromial shape
was evaluated in relation to sex, symmetry and presence of subacromial enthesophytes
and classified according to Bigliani with the following results: type I
(flat): 26.1%, type II (curved): 55.6% and type III (hooked): 18.1%. There was
a greater percentage of type III in men (56.2% vs. 43.7%) and type I in women
(56.5% vs. 43.4%). Acromial morphology was symmetric in 29 acromia (65.9%).
Enthesophytes were most common in type III (75%). A rough inferior surface of
the acromion was most frequently found in type III (81.2%). Nine other scapular
osteological parameters were also measured. Many differences were noted
between male and female scapulae. The great variety of morphological features
is assumed to be related to rotator cuff pathology and other shoulder
impairments