
04/07/2025
A 10-year-old male presented with left elbow pain and swelling for 4 months following a fall.
Biopsy confirmed a chondroblastic osteosarcoma. He received neoadjuvant chemotherapy, after which MRI showed an interval reduction in tumor size, with a soft tissue mass involving the proximal meta-diaphysis of the left ulna.
A wide margin excision of the proximal ulna was performed. The bone was recycled using liquid nitrogen.
Recycling of the bone led to fragmentation of the articular surface and olecranon, requiring reconstruction with subsequent fixation and reattachment of the remaining muscles.