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Knee

INCIDENCE OF MENISCAL AND CHONDRAL INJURIES AT THE TIME OF ACL RECONSTRUCTION, AND THEIR RELATIONSHIP WITH OUTCOME AT 2 YEARS

British Association for Surgery of the Knee (BASK)



Abstract

AIM

We aim to identify whether meniscal repair at the time of ACL reconstruction was associated with a better outcome than meniscectomy.

Method

We prospectively collected data on 233 consecutive patients undergoing ACL reconstruction in our unit. A four strand autologous hamstring graft was used with suspensory femoral fixation, and a tibial interference screw. At surgery the presence and location of chondral and meniscal injuries was noted, and whether the meniscal lesion was resected or repaired. Patients were reviewed and scored by a specialist physiotherapist practitioner pre-operatively, and at 6, 12, and 24 months. Tegner, Lysholm, and Cincinatti knee scores were used.

Results

At surgey 58% of patients had a meniscal injury, of which 51% were medial and 36% were lateral. 13% had injury to both medial and lateral menisci. 26% of these were repaired. 23% of patients had an associated chondral injury of which 55% involved the medial femoral condyle. The presence of a meniscal injury did not correlate with a worse outcome (Tegner, Lysholm and Cincinatti). There was no difference in outcome whether a meniscal tear was repaired or resected. Lateral meniscus injuries were associated with a worse outcome at 2 years than medial meniscus injuries (Lysholm p= 0.013).

Chondral injury was associated with a worse outcome at 2 years.

Age over 40 years was associated with a higher incidence of chondral injury (51%) and with a worse outcome.

Conclusion

We found that lateral meniscal injury was associated with poorer outcome when compared to medial meniscal injury. This was found to be statistically significant. We found that associated chondral injury at the time of surgery to be a better predictor of poor outcome than meniscal injury. Meniscal repair did not seem to confer a discernable improvement in outcome at 2 years over meniscectomy.