We aimed to present the outcomes of primer aneurysmal bone (PABC) cysts ( Sakarya Med J, 2018, 8(3):593-602 ).
One hundred patients with PABC were included in this study. We investigated age, sex, location, treatment technique and recurrence rates

Forty-five patients were female and 55 patients were male. The mean age was 22 (4-56). %54 (54) of the patients were on the first and se- cond decade. %22 (22) lesions were located in upper extremity, %55 (55) were in lower extremity and 23 (23) were in pelvis and vertebra. Fifty-seven were treated by curettage with or without bone grafting, 31 with curettage and cementation and 12 with resection. The mean follow-up period was 64,6 months (25-120). All of the lesions were PABC.

The total recurrence was 16 (%16). Fifteen recurrences were seen in the first two year. Eight of them were in the lower extremity, 5 of them were upper extremity, 3 recurrences were at the pelvis. One of the recurrence was seen at the first decade, 8 of the recurrences were seen at the second decade, 6 of the recurrences were seen at the third decade and 1 of the recurrence was seen at the fourth decade. %21.05 of the patients who were treated by curettage with or without grafting had recurrence. %12.90 of the patients who were treated by curettage and cementation had recurrence. None of the patients who had treated by resection had recurrence.

Aggressive surgery decreases the recurrence rate but curettage with or without grafting or with cementation and adjuvant treatments also provide good results.