Abstract 131P
Background
Reconstructing the proximal humerus after tumor removal is a complex issue. However, advances in materials and implant provide various options for reconstruction.
Methods
This study provides a retrospective analysis of 26 cases of proximal humerus reconstructions after tumors resection in one institution from 2019 to 2023. The patients, comprising of 12 males and 14 females, had an average age of 24.1 years ranging from 6 to 41 years. The follow-up period extended over 22 months, varying from 3.5 to 59.6 months.
Results
The pathologies including aneurysmal bone cyst (1 case), osteosarcoma (15 cases), chondrosarcoma (4 cases), giant cell tumor (3 cases), Ewing sarcoma (1 case), synovial sarcoma (1 case), and undifferentiated pleomorphic sarcoma (1 case). A range of surgical interventions were utilized: Reverse shoulder arthroplasty (RSA) in 16 cases; Polyether ether ketone (PEEK) in 6 cases; RSA combined with PEEK in 1 case; RSA combined with liquid nitrogen-treated autograft in 2 cases; and PEEK combined with liquid nitrogen-treated autograft in 1 case. The results showed a mean range of motion of 60° in anteversion, 40° in abduction. The mean MSTS score was 25.4 out of 30. Notable complications included shoulder dislocation in 2 cases and radial nerve damage in 3 cases, all of which recovered after 6-8 months. Additionally, there was a fracture at the PEEK stem in 1 case.
Conclusions
This study illustrates various surgical approaches and their associated outcomes in proximal humerus reconstructions after tumor removal in Vietnam. In our country's circumstances, we prefer using artificial materials for reconstruction, and there is an increasing trend in utilizing a combination material to achieve the best outcomes tailored to each patient.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
Trần Đức Thanh.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.