Abstract:

BACKGROUND: Selection of tendon allograft materials for posterior cruciate ligament (PCL) injury combined with posterolateral complex (PLC) injury is controversial.
OBJECTIVE: To observe the effect of tendon allograft materials on PCL plus PLC injuries during reconstruction.
METHODS: Fifteen patients with arthroscopic PCL plus PLC injuries of the knee joint received knee joint construction with tendon allograft supported by Shanxi Provincial Medical Tissue Bank. Original remnants of the PCL were retained as much as possible. PCL tibial and femoral tunnel were prepared, and extrusion screws were introduced during allogeneic tendon repair.
RESULTS AND CONCLUSION: Degree of knee joint flexion and extension was improved greatly after reconstruction (P < 0.01). The drawer test results showed that there were 4 cases of 2+ and 11 of 4+ before reconstruction as well as 8 negative cases, 6 of 1+ and 1 of 2+ after reconstruction. After reconstruction, the varus stress test was negative at 30° of flexion and full extension, indicating that the retrusion degree and stability of the joint was significantly improved. Lysholm scores had a great increased as compared with before reconstruction (P < 0.01). No knee joint rejection, infection and other complications were found during the follow-up period. The results confirmed that the tendon allograft reconstruction of PCL plus PLC injuries cannot damage the normal structure with satisfactory effects.