Arthroscopic Excision for Intra-Articular Osteoid Osteoma of the Olecranon Fossa: A Case Report and Literature Review

Abstract EN

Intra-articular osteoid osteoma (OO) of the elbow is rare.

We report a 26-year-old man who presented with pain, swelling, and limited elbow range of motion.

Plain computed tomography (CT) showed a radiolucent round lesion at the distal humerus and reactive bone in the olecranon fossa.

Conservative treatment with salicylate failed under the suspicion of OO.

During elbow arthroscopy, a red solitary lesion was noted after resection of the white reactive bone in the olecranon fossa and was excised en bloc using a bony chisel.

Histological examination showed OO.

The patient’s symptoms resolved the day after surgery.

The patient remained asymptomatic 2 years postoperatively.

This case report shows the successful clinical results of an arthroscopic procedure for intra-articular OO based on two primary goals: precise location of the lesion indicated by reactive bone on preoperative CT and histological verification using bony chisel.