Summary

Anterior cruciate ligament reconstruction using a bone patellar-tendon bone autograft via the transportal rectangular bone socket creation method enables to set the femoral tunnel position more posterior and distally with better clinical outcomes than the transtibial circular tunnel method by decreasing bone resection volume from patellar.

Abstract

Purpose

To compare postoperative outcomes of the anterior cruciate ligament reconstruction using a bone patellar-tendon bone autograft via the transtibial circular bone socket creation (circular TT) method versus the transportal rectangular bone socket (rectangular TP) method.

Methods

Thirty knees were treated with the circular TT method and 50 knees were treated with the rectangular TP method. The bone tunnel center, bone resection volume from patellar and the postoperative clinical outcomes were investigated.

Results

The femoral bone tunnel position was more posterior and distal, and the tibial tunnel was more medial position in the rectangular TP group. The estimated resection bone volume from patellar was smaller with the rectangular TP group. The range of motion (ROM) of the knee was better with the rectangular TP group at 1 week after surgery. Although there was no significant difference in ROM, knee stability, and muscle strength 1 year after surgery, the Lysholm score, KOOS Pain, ADL scores were better in the rectangular TP group.

Conclusion

Anterior cruciate ligament reconstruction using a bone patellar-tendon bone autograft via the rectangular bone tunnel in the transportal method enables to create the femoral bone socket at posterior and distal position with a less bone resection volume from patellar comparing to the transtibial circular tunnel group. Lysholm score, KOOS Pain and ADL scores 1 year after surgery were higher in the rectangular TP group.