• Maren Janko, Lisa Seufert, David Schramm, Ingo Marzi, and Johannes Frank.
• Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Frankfurt, Goethe-Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland. maren.janko@kgu.de.
• Unfallchirurg. 2020 Aug 1; 123 (8): 625-633.

BackgroundThere is no standard procedure regarding surgical treatment of multiligament knee injuries involving rupture of the posterior cruciate ligament.ObjectiveDoes the modified and purely arthroscopic operation technique show similarly good results compared to the familiar open tibial inlay technique?MethodsA total of four patients were surgically treated using the open tibial inlay technique (group A) and seven using the modified arthroscopic approach (group B). The prospectively designed follow-up examination comprised the Lysholm score, the subjective questionnaire of the International Knee Documentation Committee (IKDC) score as well as the specifically extended Orthopedic Working Group Knee (OAK) score for clinical assessment. Tests on translational movability of the knee joint were performed with the Rolimeter®. The level of statistical significance alpha was set at 5%.ResultsThe follow-up examination took place on average 28.5 ± 19.60 months and 30.6 ± 26.26 months postoperatively in groups A and B, respectively. Groups A and B recorded mean 70.3 ± 5.32 and 69.6 ± 19.82 points in the Lysholm score, respectively. In the subjective IKDC score group A showed 67.3 ± 7.76 points and group B 65.9 ± 12.35 points. The OAK score was 77.5 ± 6.10 points in group A and 75.3 ± 11.31 points in group B. The side difference in the posterior drawer test was 1.75 ± 1.192 mm in group A and 2.50 ± 2.160 mm in group B. In the reverse Lachman test differences of 2.37 ± 2.175 mm and 3.22 ± 2.059 mm were measured in groups A and B, respectively. All values showed no significant differences between the two evaluated groups.ConclusionThe results of the two operation techniques were not significantly different. The arthroscopic approach is therefore regarded as the preferred method in this institute.

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