Trends in Digital Replantation
Trends in Digital Replantation
Reported overall success rates ranged from to 63–94%. Saies et al. reported a success rate of 88% for revascularization and 63% for replantation in children. Zhang et al. reported a success rate of 94% in replantations in a frigid zone in China.
Several scoring systems have been introduced for the evaluation of outcomes after replantation. However, there is no agreement about their accuracy. The most frequently used scale of these is the Chen Score. Using four criteria for evaluation of functional return (ability to work, range of motion, recovery of sensation, and muscle power) the results were assigned to four grades with grade I being the best and grade IV the worst.
The average active range of motion of replanted thumbs was 19% and 45% when compared with the unaffected hand, and 46–50% in the other fingers. Total grip strength was between 67–72%. Hattori et al. found no difference in grip strength in a comparative study of patients with distal replantation and patients with stump revision. The replanted group showed better motion of the proximal interphalangeal joint and a more frequent use of the replanted digits as compared with the group with stump treatment.
Results
Reported overall success rates ranged from to 63–94%. Saies et al. reported a success rate of 88% for revascularization and 63% for replantation in children. Zhang et al. reported a success rate of 94% in replantations in a frigid zone in China.
Several scoring systems have been introduced for the evaluation of outcomes after replantation. However, there is no agreement about their accuracy. The most frequently used scale of these is the Chen Score. Using four criteria for evaluation of functional return (ability to work, range of motion, recovery of sensation, and muscle power) the results were assigned to four grades with grade I being the best and grade IV the worst.
The average active range of motion of replanted thumbs was 19% and 45% when compared with the unaffected hand, and 46–50% in the other fingers. Total grip strength was between 67–72%. Hattori et al. found no difference in grip strength in a comparative study of patients with distal replantation and patients with stump revision. The replanted group showed better motion of the proximal interphalangeal joint and a more frequent use of the replanted digits as compared with the group with stump treatment.
