Abstract
Introduction
The purpose of this study was to evaluate the clinical and radiologic results after isolated reconstruction of the posterior cruciate ligament (PCL) using the semitendinosus (ST) and gracilis (GR) tendons with the arthroscopic single-bundle technique.
Methods
All patients upon whom we had performed a single-bundle PCL reconstruction between 2002 and 2005 prospectively underwent a standardized follow-up examination after 2 years. Isolated PCL reconstruction was carried out on 41 patients during the observation period. Pre- and postoperative stress radiographs were taken using the Telos stress device in order to evaluate the dorsal translation. Knee joint function and degree of activity were recorded using the Tegner activity score, the subjective International Knee Documentation Committee (IKDC) score, and the overall IKDC score.
Results
33 of 41 patients (80.4%, 17 men, 16 women) completed the study. The posterior tibial translation of −10.1 ± 1.8 mm had an overall average improvement to a postoperative value of −5.0 ± 2.5 mm (p < 0.001). The patients showed a significant improvement in the Tegner activity score from an average 2.8 ± 0.8 points to 5.9 ± 1.2 points (p < 0.001). Evaluation of the subjective IKDC showed a significant improvement from a preoperative score of 41.86 ± 11.49 points to a postoperative score of 69.54 ± 11.39 points (p < 0.001). In total, 24 patients (72.8%) exhibited a normal or nearly normal outcome.
Conclusion
The abovementioned reconstruction technique can achieve a stable knee function in patients with isolated PCL insufficiency. The isolated single-bundle PCL reconstruction offers an improvement regarding the activity level and stability of the knee joint.
Level of evidence
Level IV.
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Abbreviations
- AL:
-
Anterolateral bundle
- GR:
-
Gracilis
- IKDC:
-
International Knee Documentation Committee
- PCL:
-
Posterior cruciate ligament
- ST:
-
Semitendinosus
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Acknowledgments
The authors thank Geistlich Surgery, Wolhusen, Switzerland for linguistic support. The authors thank Dr. Nina Scola for support in preparation of the manuscript.
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Lahner, M., Vogel, T., von Engelhardt, L.V. et al. Isolated AL bundle reconstruction of the PCL. Arch Orthop Trauma Surg 132, 363–370 (2012). https://doi.org/10.1007/s00402-011-1403-5
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DOI: https://doi.org/10.1007/s00402-011-1403-5