Surgical treatment of aneurysmal bone cyst in al- Najaf City : aretrospective study on 33 patients

الملخص EN

Anuerysmal bone cyst is not uncommon benign tumor among children and adolescent , specially in the second decade of life .

Many pathological studies divided anuerysmal bone cysts into primary and secondary types.

The primary anuerysmal bone cysts have been reported to arise almost every bone of both axial and appendicular skeleton ,most often around the knee joint, where as secondary anuerysmal bone cyst superimposed on a preexisting lesions.

Aims of the study: 1- To study the frequency of tumor according to anatomical sites.

2-To study the most common types according to Cappana classification.

3- To identify the best surgical techniques, dealt with such tumor .

Patients and Methods: A retrospective study done at Al-Sadder Teaching Hospital , Orthopedic Department , between 1992 -2006.

There were 33 patients diagnosed as aneurysmal bone cysts after X-ray evaluation and histopathological study .

There were 20 female ,13 male with mean age 13.4 years ( 8-21 years ).

The lesions were evaluated by plain radiography preoperatively assessed according to Cappana and Associates.(1,5) Postoperative follow up after surgery for 24 months taken into account the type of surgery and the postoperative complication.

The results : From 33 patients there were 20 female ( 60.6%), and 13 male (39.4%), and most of those patients complaining of pain (84.8%) ,swelling of affected part ( 75.8%) and there were 13 patients presented with pathological fractures, and there were 2 patients had neurological symptoms .

The main involved bone was the tibia ( 7 cases) about 21.2% and followed by the humerus ( 5 cases ).

According to Cappana classification the active type most common type where manifested in 19 cases ( 57.6%).

According to complication , the recurrence of the cyst postoperatively occurred in 9 cases ( 27.3% ), Which was the most challenging complication