Recurrent dislocations and subluxations of the patella

Area of Science:

• Orthopedic Surgery
• Knee Biomechanics

Background:

• Patellar dislocations and subluxations are common knee injuries.
• Anatomical abnormalities can predispose individuals to patellar instability.
• The Trillat procedure is a surgical technique designed to address these underlying causes.

Observation:

• Seventy-four patients with patellar dislocations/subluxations underwent the Trillat procedure.
• The procedure involves lateral retinacular release, patellar tubercle transfer, and optional vastus medialis advancement.
• Follow-up in 42 knees ranged from 2 to 9 years (average 4.2 years).

Findings:

• Excellent results were observed in 6 knees, good in 28, fair in 5, and poor in 3.
• The Trillat method demonstrated a high success rate in stabilizing the patella.
• Intraarticular examination is crucial for identifying associated pathologies.

Implications:

• The Trillat procedure offers a viable surgical option for managing patellar instability.
• Careful preoperative assessment is necessary to optimize surgical planning.
• Concurrent patellofemoral arthritis may necessitate alternative or additional surgical interventions, such as the Maquet procedure.