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17.02.2017 | Knee | Ausgabe 12/2017

Knee Surgery, Sports Traumatology, Arthroscopy 12/2017

Factors influencing the success of anterior cruciate ligament repair with dynamic intraligamentary stabilisation

Knee Surgery, Sports Traumatology, Arthroscopy > Ausgabe 12/2017
Anna M. Krismer, Lampros Gousopoulos, Sandro Kohl, Atesch Ateschrang, Hendrik Kohlhof, Sufian S. Ahmad
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1007/​s00167-017-4445-6) contains supplementary material, which is available to authorized users.



Primary repair of the anterior cruciate ligament (ACL) has regained interest of clinicians with recent development of novel repair techniques. Dynamic intraligamentary stabilisation was introduced in an attempt to promote healing by shielding cyclic loads acting upon the ACL during the healing phase. The aim of this study was to identify negative factors likely to influence success of this procedure.


Between 2009 and 2014, 264 patients with an acute ACL rupture undergoing dynamic intraligamentary stabilisation were included in this study. Patients were evaluated for anterior/posterior laxity; range of motion and patient reported outcome measures. Adverse events and re-operations were noted. Failure was defined as AP Translation >3 mm, re-rupture or conversion to ACL reconstruction. Minimum follow-up was 24 months. Univariate and multivariate regression models were utilized to determine predictors of failure.


An overall complication rate of 15.1% was noted comprising 9.5% (n = 25) re-ruptures, 4.1% (n = 11) persistent instability, and 1.5% (n = 4) > 10° fixed flexion deformity. Two factors were identified as negative predictors of failure: (1) pursuit of competitive sport activities with a Tegner pre-injury score >7 (Odds Ratio (OR) 4.4, CI 1.2–15.9, p = 0.02) and (2) mid-substance ACL rupture location (OR 2.5, 1.1–5.7, p = 0.02). When neither of those risk factors occurred the failure rate was limited to 3.9%.


Correct patient selection and narrowing of indications are necessary to maintain high success rates of the procedure. Mid-substance ACL ruptures and a high pre-injury sports activity level are two predictors of inferior outcome.

Level of evidence


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Supplementary material 1 (XLS 98 KB)
Supplementary material 2 (PDF 505 KB)
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