2017 ISAKOS Biennial Congress ePoster #212

 

Functional Outcomes after Patellar Autologous Osteochondral Transplantation

Diego C. Astur, MD, PhD, São Paulo, SP BRAZIL
ADILIO DE PAULA Bernardes
Saulo Castro, MD, São Paulo, SP BRAZIL
Gustavo Arliani, MD, PhD, Prof., São Paulo, SP BRAZIL
Camila Cohen Kaleka, MD, São Paulo, SP BRAZIL
Nelson Astur Neto, São Paulo, SP BRAZIL
Moises Cohen, MD, PhD, Prof., São Paulo, SP BRAZIL

Universidade Federal de São Paulo, São Paulo, SP, BRAZIL

FDA Status Not Applicable

Summary

Functional outcomes after patellar autologous osteochondral transplantation

Abstract

Purpose

The aim of the present study was to assess clinical evaluation of patients who underwent autologous osteochondral transplantation of the patella.

Methods

This prospective study assessed outcomes of 20 patients who underwent patellar autologous osteochondral transplantation at four time-points: preoperatively, 3 days, 6 months, and 2 years after surgery. The following outcomes were assessed at each time-point: pain (VAS), gait,
swelling, trophic status, muscle strength, patellar mobility,and range of motion. The Tegner scale was also applied for each time-point.

Results

All parameters improved, except for patellar mobility, which did not show any change. Pain score decreased from 7.1 (SD 2.3) to 2.4 (SD 2.6) at the 2-year assessment; limping decreased from 70 % before surgery to 15 % 2 years later; swelling scores decreased from an average of 1.8 (SD 0.8) 3 days after surgery to 0.5 (SD 0.7) at the 2-year assessment; muscle strength increased from 3.9 (SD 0.8) to 4.7 (SD 0.7) points at final follow-up; and the
range of motion increased from 84 (SD 16.2) to 132 (SD 10.7) degrees 2 years later. Tegner score before surgery ranged from 0 to 5, and after 2 years, it ranged from 5 to 9.

Conclusion

Autologous osteochondral transplantation for the treatment of patellar chondral lesion was associated with significant improvement in pain, gait, swelling, and range of motion 2 years after surgery, achieving scores similar to uninjured knees. Most of them were able to return to sports activity after 6 months (recreational level) and 2 years (competitive level).