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Background To demonstrate and compare results obtained with the transtibial double-bundle posterior cruciate ligament (PCL) reconstruction technique using two types of autografts in isolated and combined PCL lesions. Methods Fifty-two patients with isolated or combined PCL injuries underwent double-bundle PCL reconstruction and were retrospectively evaluated. Among them, 34 were reconstructed using ipsilateral quadriceps and semitendinosus tendon grafts, and 18 were reconstructed using bilateral hamstring tendon grafts. The criteria for outcome evaluation were: objective International Knee Documentation Committee (IKDC) score, Lysholm score, posterior stability (posterior drawer test and KT-1000TM), and rate of complications, comparing the two types of grafts and comparing isolated PCL and combined lesions. The minimum follow-up was two years. Results Significant improvements were found in all evaluation methods between the pre- and postoperative periods (all P .05). The whole sample had the following results: objective IKDC score, 96.2% classified as A/B; Lysholm score, 98.1% rated as good or excellent; and KT-1000, 98.1% with a side-to-side difference of up to five millimeters (65.4% with 0 to two millimeters). The complication rate was 9.6%, with no differences between the graft type that was used (P = .585). No significant difference was observed when comparing the results between isolated PCL injuries and combined injuries (all P > .05). Conclusions The proposed PCL reconstruction technique presented satisfactory results in both isolated and combined PCL lesions, and there were no differences between different types of autografts used. Level of evidence Level III.

Objective The objective of this study was to evaluate the results obtained from posterior cruciate ligament (PCL) reconstruction with the double femoral tunnel technique, using quadriceps tendon and semitendinous autograft, in patients with isolated PCL tears or PCL tears associated with other ligament lesions, 2years after surgery. Methods The study included 14 patients with isolated PCL lesions and 20 with combined ligament lesions, who underwent PCL reconstruction using the double femoral tunnel technique and were evaluated 24months after surgery using the International Knee Documentation Committee (IKDC) and Lysholm scores, a KT-1000 arthrometer, and the graduation of the posterior drawer test. Results Knees were considered normal ("A") or nearly normal ("B") in 92.9% of patients with isolated lesions and in 95.0% of patients with combined tears, according to the IKDC score. Good or excellent results were obtained in 100% of patients in both groups according to the Lysholm score. Absence or outstanding reduction of posterior tibial translation was seen in 92.9% of patients with isolated lesions and in 100% of patients with combined ligament tears, in the posterior drawer evaluation. Conclusion The PCL double femoral tunnel reconstruction technique using autografts was effective in restoring posterior knee stability, in isolated and/or combined PCL tears, showing remarkable clinical improvement in all patients. Level of evidence 2C.