Long-term results of the Aptis™ total distal radioulnar joint prosthesis after previous failed surgical procedures

We present a prospective study with the results of ten Aptis total distal radioulnar joint replacements in patients who had one to five previous operations. The mean postoperative follow-up was 9.7 years (range 3-14.7). The mean postoperative range of motion of the wrist improved by 9(degrees) for extension, 15(degrees) for flexion, 10(degrees) for pronation and 14(degrees) for supination, achieving values equivalent to 88%, 78%, 97% and 88% of those of the non-operated hand. There were minimal changes in radial and ulnar deviations. Grip strength improved by 7 kg, pain decreased by 8 points, QuickDASH and Mayo wrist scores improved by 51 and 53 points, respectively. Two implants had radiolucency less than 1 mm. Serum titanium ion levels were slightly elevated in two patients. Three prostheses required revision surgery for heterotopic ossification, a prominent radial screw and a periprosthetic fracture. No prostheses were removed. Six patients returned to their former professional activities and four patients adapted their jobs.

Automated summary

This study presents the long-term results of ten Aptis total distal radioulnar joint replacements, showing significant improvement in wrist motion, grip strength, and pain reduction. Although some complications occurred, the majority of patients were able to return to their former professional activities.