Retrospective study of 25 operative ankle fractures with syndesmotic fixation. Compares standard postoperative radiographs to CT for detecting syndesmotic malreduction. Asks: can plain films reliably confirm adequate reduction after screw placement?
The syndesmosis looks reduced on fluoroscopy, the screw is in, and the mortise view shows overlap — yet CT reveals gross malreduction in more than half of cases. That gap between radiographic appearance and reality is what this paper quantifies.
When you fix a syndesmosis and the post-op films look acceptable, do not be reassured. The 31% sensitivity figure means a normal radiograph is essentially uninformative for ruling out malreduction.
Clinically, direct this vigilance toward the highest-risk scenarios the authors identify: fibular comminution (where anatomic length and rotation are harder to restore), posterior malleolar fractures (which destabilize the incisura), and any case where reduction was done percutaneously without direct visualization.
For these cases, intraoperative CT or early postoperative CT before the patient leaves should be considered. The authors also raise the point that more liberal fixation of posterior malleolar fragments. Even those below the traditional size threshold. May restore the bony incisura and produce a more reliable reduction.
The downstream stakes are high: per the studies cited by the authors, quality of syndesmotic reduction is the single strongest predictor of functional outcome after transsyndesmotic screw fixation.
Retrospective study of 25 operative ankle fractures with syndesmotic fixation. Compares standard postoperative radiographs to CT for detecting syndesmotic malreduction. Asks: can plain films reliably confirm adequate reduction after screw placement?
The syndesmosis looks reduced on fluoroscopy, the screw is in, and the mortise view shows overlap — yet CT reveals gross malreduction in more than half of cases. That gap between radiographic appearance and reality is what this paper quantifies.
When you fix a syndesmosis and the post-op films look acceptable, do not be reassured. The 31% sensitivity figure means a normal radiograph is essentially uninformative for ruling out malreduction.
Clinically, direct this vigilance toward the highest-risk scenarios the authors identify: fibular comminution (where anatomic length and rotation are harder to restore), posterior malleolar fractures (which destabilize the incisura), and any case where reduction was done percutaneously without direct visualization.
For these cases, intraoperative CT or early postoperative CT before the patient leaves should be considered. The authors also raise the point that more liberal fixation of posterior malleolar fragments. Even those below the traditional size threshold. May restore the bony incisura and produce a more reliable reduction.
The downstream stakes are high: per the studies cited by the authors, quality of syndesmotic reduction is the single strongest predictor of functional outcome after transsyndesmotic screw fixation.