The purpose of this study was to evaluate flexor tendon injuries following palmar plating of distal radial fractures relative to the Soong grade. This retrospective cohort study included 113 patients who underwent palmar plate removal after a distal radial fracture between 2010 and 2016. In 13 patients, a greater than 50% injury of the flexor pollicis longus tendon was observed. Of these, nine patients were classified as Soong grade 2, four as Soong grade 1 and none as grade 0. The difference between the Soong groups was statistically significant ( p = 0.006). Flexor tenosynovitis was present in eight patients (7%) and more likely in patients with a higher Soong grade ( p = 0.026). We conclude that higher Soong grades are associated with significantly more flexor tendon complications. Therefore, elective removal of the palmar plate after union of the fracture should be considered in patients with Soong grades 1 and 2. Level of evidence: IV
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