Reconstruction following oncological iliosacral resection

Area of Science:

• Orthopedic Surgery
• Skeletal Oncology
• Reconstructive Surgery

Background:

• The sacroiliac joint (SIJ) is crucial for axial skeleton and lower limb connection.
• The necessity of SIJ reconstruction after iliosacral resection is debated.
• Limited data exists comparing outcomes of reconstructed versus non-reconstructed SIJ patients.

Purpose of the Study:

• To compare outcomes between patients undergoing sacroiliac joint (SIJ) reconstruction and those without formal reconstruction after iliosacral resection.
• To evaluate the impact of SIJ reconstruction on functional outcomes, complications, and survival rates.

Main Methods:

• A retrospective review of 60 patients who underwent iliosacral resection, with 27 undergoing reconstruction and 33 not.
• Data collected included tumor characteristics, operative details, complications, functional scores (Musculoskeletal Tumor Society Score), and survival rates.
• Follow-up averaged nine years for surviving patients.

Main Results:

• No significant difference in disease-specific survival or metastasis rates between reconstructed and non-reconstructed groups.
• Reconstruction was associated with significantly longer operating times, increased blood transfusion requirements, and higher rates of deep infection (48% vs 12%).
• Functional outcomes, including ambulation and Musculoskeletal Tumor Society Score, were similar between both groups.

Conclusions:

• Sacroiliac joint (SIJ) reconstruction following iliosacral resection is linked to increased operative time, blood loss, and infection risk.
• Formal SIJ reconstruction does not appear to improve functional outcomes or survival rates compared to non-reconstruction.
• These findings suggest that routine SIJ reconstruction may not be necessary after iliosacral resection.