| Objective To evaluate the short-to-medium-term clinical efficacy and safety of the independently designed, individualized 3D-printed porous titanium-polyethylene composite artificial wrist joint replacement.Methods From February 2019 to July 2023, 32 patients with late-stage wrist joint diseases underwent personalized replacement surgery. Wrist joint pain (VAS score), range of motion (palmar flexion, dorsiflexion, ulnar deviation, radial deviation, pronation, supination), grip strength, and wrist joint X-ray findings were assessed preoperatively and postoperatively.Results All patients were followed up, with a follow-up duration of 6 to 60 months (mean, 24.44 months). Although some patients have not yet reached the 5-year follow-up, the available follow-up results can provide a preliminary evaluation of the medium-term efficacy and safety of 3D-printed porous titanium artificial wrist joint replacement. At the final follow-up, the VAS score decreased from preoperative (52.34±17.64) to (2.81±3.80) (P<0.01); grip strength increased from preoperative (8.13±5.97) kg to postoperative (14.78±5.62) kg (P<0.01); wrist joint range of motion increased from preoperative palmar flexion 0.00 (0.00, 20.00) and dorsiflexion (32.34±20.98) to postoperative palmar flexion 20.00 (10.00, 10.00) (P<0.05) and dorsiflexion (38.13±17.31) (P<0.05). No prosthesis loosening or dislocation occurred, and patient satisfaction was high.Conclusion The independently designed, individualized 3D-printed porous titanium-polyethylene composite artificial wrist joint replacement demonstrates favorable safety and short-to-medium-term clinical efficacy. |
