Headless compression screw fixation of scaphoid fractures.

Scaphoid fractures carry significant long-term morbidity and short-term socioeconomic difficulty in the young and active patient population in which they most commonly occur. While cast immobilization results in high rates of radiographic union in nondisplaced scaphoid fractures, internal fixation with headless compression screws has been recommended in cases of displaced fractures. Internal fixation has led to high rates of union in both nondisplaced and displaced fractures with the added benefits of earlier mobilization and return to work and sports. Multiple manufacturers are now offering "second generation" headless compression screws for the internal fixation of scaphoid fractures. The few biomechanical studies that exist demonstrate improved compression forces and load to failure for the newer generation of headless compression screws when compared with the first generation headless compression screw, although it is unclear if these differences are clinically significant.