Analysis of the bony geometry of the acromio-clavicular joint

Table 1 AC joint configuration

	Type	Incidence (%)	Acromion angle	Clavicle angle
Group I	Overhanging acromion	46.2	112.7 + 7.4°	72.7 + 7.5°
Group II	Neutral shaped	38.4	88.6 + 6.2°	92.9 + 13.7°
Group III	Overhanging clavicle	15.4	71.3 + 7.5°	108.2 + 12.9°

The corresponding angles to the different AC joint types are illustrated in this table besides their frequency distribution. Data are given as arithmetic mean and standard deviation

ISSN: 2047-783X