Multifocal Trochlear Osteochondral Allograft Transplantation With Overlapping Grafts for Ovoid Trochlear Lesion

Area of Science:

• Orthopedic surgery
• Biomedical engineering

Background:

• Large trochlear osteochondral lesions pose treatment challenges due to patellofemoral joint anatomy.
• Optimizing graft site conformity is critical for successful outcomes.

Purpose of the Study:

• To describe a surgical technique for treating large or ovoid trochlear osteochondral lesions.
• To present the "snowman" technique utilizing multifocal, overlapping osteochondral allografts.

Main Methods:

• Technique description for multifocal osteochondral allograft transplantation.
• Utilizing multiple overlapping grafts for large or ovoid lesions not suitable for single plug grafts.

Main Results:

• The "snowman" technique facilitates reconstruction of complex trochlear defects.
• Addresses limitations of single graft transplantation for extensive lesions.

Conclusions:

• The "snowman" technique offers a viable solution for large trochlear osteochondral lesions.
• This method enhances patellofemoral joint conformity and graft integration.