Retrospective Outcome Analysis of Allogenic Bone Graft

Area of Science:

• Orthopedic Surgery
• Biomaterials Science
• Tissue Engineering

Background:

• Bone banks are crucial for reconstructive and tumor surgeries, supplying allogenic bone from cadavers and live donors.
• Surgical residues from live donors offer a valuable source for allogenic bone grafts.

Purpose of the Study:

• To evaluate the outcomes of reconstructive procedures using fresh frozen allografts derived from live donor surgical residues.
• To analyze graft incorporation time and infection rates in recipients of allogenic bone grafts.

Main Methods:

• Retrospective observational study of 55 recipients who underwent reconstructive procedures using allogenic bone grafts between January 2018 and November 2020.
• Grafts were sourced from surgical residues and transplanted either alone or augmented with implants/cement.
• Outcomes assessed included infection rates (early, delayed, late) and time to achieve weight-bearing for lower limb transplants.

Main Results:

• A total of 70 grafts were transplanted; 55 recipients were analyzed after a minimum one-year follow-up.
• Overall infection rate was 7.2% (4 cases), with 2 acute and 2 chronic infections.
• Mean time to weight-bearing was 7 months for grafts used alone and 3.5 months when augmented.
• Five patients (9.1%) did not achieve complete graft integration.

Conclusions:

• Allogenic bone grafts from surgical residues are effective and encouraging in reconstructive surgery.
• Augmentation with implants or cement significantly reduces the time to weight-bearing.
• These grafts show potential as biological adjuvants, improving reconstructive surgery outcomes.