Table 1.
Summary of VFET Technique Considerations to Guide Surgical Planning
Summary of Technique Considerations | |
---|---|
Harvest | |
Vascular pedicle | |
ATA | Reports of limb growth with average range of 0.44–1.72 cm/y Risk of postoperative peroneal palsy due to close proximity of deep peroneal nerve during dissection |
Peroneal artery | Reports of average limb growth of 0.5 cm/y Associated with premature growth plate closure |
ILGA | Limited used reported in distal radius/ulna reconstruction No reports of peroneal palsy |
Dual pedicle | Potential benefit of maintaining adequate perfusion to both fibular head and diaphysis Increased complexity due to multiple anastomoses and increased donor site morbidity due to one-vessel runoff |
Periosteum | May promote bony union at recipient site |
Recipient site inset | |
Fixation method | |
Plates + screws | Most common fixation method Offers more stability, and may be less prone to postoperative fracture |
Screws | Less stability, prone to postoperative fracture |
External fixation | Most commonly used for hip reconstruction |
Utilization of biceps femoris tendon | Used for ligamentous reconstruction at the recipient site |
Management of donor site | |
Knee stability | Suture remaining slip of biceps femoris tendon and lateral collateral ligament to lateral tibia |
Ankle stability | Leave at least 6 cm fibula distally Consider tibiofibular syndesmotic screw |
Peroneal nerve | Neurorrhaphy if divided during dissection |
Modifications | |
Combined used with allograft | Offers additional structural support while allowing for epiphyseal growth Offers more space for screw purchase and reattachment of surrounding structures |
Pedicled flap without microsurgery | Ipsilateral pedicled flap based on retrograde anterior tibial artery for reconstruction of lateral malleolus or calcaneus Avoids complexity of microvascular anastomosis |
Double barrel with vascularized fibula flap | Peroneal-based VFET connected in series with peroneal-based diaphyseal free fibula flap for proximal femur reconstruction |