Depending on the arthroscopic classification of the partial chronic instability of the syndesmosis, the three different anatomical reconstruction techniques potentially provide appropriate treatment options based on the grade of injury.
Total ankle replacement in post-traumatic end-stage arthrosis patients is associated with high revision rates. High rates of symptomatic periprosthetic bone cysts caused high rates of revision surgery and worse outcomes, which were not improved by secondary TTA.
Background: Acute syndesmosis injury (ASI) is an indication for surgical stabilization if instability is confirmed. In recent years, fixation using the knotless suture-button (SB) device has become increasingly established as an alternative to set screw fixation (SF). This study directly compared the clinical long-term results after prospective randomized inclusion. Materials and Methods: Between 2011 and 2012, 62 patients with ASI were enrolled in a prospective, randomized, and monocentric study. Forty-one patients were available for a 10-year follow-up ((31 males and 10 females), including 21 treated with SB (mean age 44.4 years), and 20 with SF (mean age 47.2 years)). In addition to comparing the demographic data and syndesmosis injury etiology, follow-up assessed the Olerud–Molander Ankle Score (OMAS) and FADI-Score (Foot and Ankle Disability Index Score) with subscales for activities of daily living (ADL) and sports activity. Results: The mean OMAS was 95.98 points (SB: 98.81, SF: 93.00), the mean FADI ADL was 97.58 points (SB: 99.22, SF: 95.86), and the mean FADI Sport was 94.14 points (SB: 97.03, SF: 91.10). None of the measurements differed significantly between the groups (p > 0.05). No clinical suspicion of chronic instability remained in any of the patients, regardless of treatment. Conclusions: The short-term results showed that athletes in particular benefit from SB fixation due to their significantly faster return to sports activities. However, the available long-term results confirm a very good outcome in the clinical scores for both approaches. Chronic syndesmotic insufficiency was not suspected in any of the patients. Level of evidence: I, randomized controlled trial.
Dislocation of the ankle without fracture is very uncommon. There are only few reports in the international literature. Up to now approximately 80 cases are published. The risk of hyperflexion and -inversion of the ankle seems high on a trampoline. A multiple of the jumperʼs body-weight projects delayed on the upper ankle joint while dipping in the trampoline-sheet. Reduction should be performed as fast as possible to ensure a good clinical outcome. Imaging via MRI and CT scan allows a detailed evaluation of the injury severity. The decision for further treatment should be based on the findings in the MRI and CT scans. Reconstructing the medial and lateral capsular ligaments can be necessary. With a consequent treatment algorithm a good functional outcome can be achieved. In our case we documented a post-traumatic AOFAS score of 87/100 six months after the injury without an instability of the upper or lower ankle joint. Propioreceptive reflex and pronator training as well as taping seem to be useful before and during trampoline sports.
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