Table 1.

Modified Neer’s scale

Complete Healing	Cyst filled [more than 95%) by formation of new bone with or without small static, radiolucent area[s) less than 1 cm in size
Healing with defect	Static, radiolucent area[s) less than 50% of the diameter of the bone with enough cortical thickness to prevent fracture
Persistent cyst	Radiolucent areas greater than 50% of diameter of the bone and with a thin cortical rim. No increase in cyst size
Recurrent cyst	Cyst reappeared in a previously obliterated area or a residual radiolucent area has increased in size