What question did this study set out to answer?

The study aimed to determine if posterior tibial slope and static anterior tibial translation affect cyclops syndrome incidence after ACL reconstruction.

April 25, 2026Journal of Experimental Orthopaedics0 citationsOpen Access

Posterior tibial slope and static anterior tibial translation are not associated with increased cyclops syndrome after anterior cruciate ligament reconstruction

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DMDavid Mazy NCNicolas Cance LALucia Angelelli

Puntos clave

The study aimed to determine if posterior tibial slope and static anterior tibial translation affect cyclops syndrome incidence after ACL reconstruction.
Included patients aged ≥14 years who underwent primary ACLR with hamstring autograft.
Demographic data, PTS, SATT, and occurrence of cyclops syndrome were recorded and analyzed.
Performed univariate and multivariate logistic regression analyses to identify risk factors.
18 out of 530 patients (3.4%) developed cyclops syndrome postoperatively at a mean of 14 months.
Cyclops syndrome rate was 4.3% for PTS ≥ 12° and 5.6% for SATT ≥ 5 mm, neither statistically significant (p = 0.536 and p = 0.154, respectively).
Female sex was the sole independent predictor of cyclops syndrome (OR, 3.3; 95% CI, 1.2–9.1; p = 0.018).

Resumen

Abstract Purpose Posterior tibial slope (PTS) and static anterior tibial translation (SATT) are established risk factors for anterior cruciate ligament (ACL) graft rupture and may also be associated with cyclops syndrome. This study aimed to assess whether these anatomical parameters influence the prevalence of cyclops syndrome after ACL reconstruction (ACLR). The hypothesis of the present study was that increased PTS and SATT would facilitate the development of cyclops syndrome. Methods Patients aged ≥14 years with a minimum follow‐up of 6 years who underwent primary ACLR with hamstring autograft between January 2015 and December 2017 were included. Demographic data, PTS, SATT, concomitant lateral extra‐articular tenodesis (LET) and reoperation for cyclops syndrome were recorded. Time from index surgery to arthrolysis was documented, with a minimum follow‐up of 6 years. Subgroup analysis regarding PTS, SATT and gender was performed. Univariate and multivariate logistic regression analyses were conducted to identify independent risk factors. Results Of 530 patients included for analysis, 18 (3.4%) developed cyclops syndrome at a mean of 14 ± 9 months postoperatively (range, 6–33 months). Patients with a PTS ≥ 12° had a 4.3% rate of cyclops syndrome compared with 3.2% in those with a PTS < 12° ( p = 0.536). Patients with a SATT ≥ 5 mm had a 5.6% rate compared with 2.7% for SATT < 5 mm ( p = 0.154). Female patients presented a statistically significant higher prevalence (5.9%) compared with males (1.8%, p = 0.024). Concomitant LET did not demonstrate a protective effect ( p = 0.807). Female sex was the only independent predictor of cyclops syndrome (OR, 3.3; 95% CI, 1.2–9.1; p = 0.018). Conclusion This study found no evidence that increased PTS or SATT predisposes to cyclops syndrome after ACLR with hamstring autograft. These preoperative parameters should not alert clinicians to an increased risk of postoperative cyclops syndrome. Level of Evidence Level III, retrospective case‐control study.

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Mazy et al. (Wed,) studied this question.

synapsesocial.com/papers/69ec5b2388ba6daa22dacb17 https://doi.org/https://doi.org/10.1002/jeo2.70664

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