Allen S Classification Of Fingertip Injuries And Case Distribution

Allen S Classification Of Fingertip Injuries And Case Distribution The fingertip is the most distal portion of the finger providing the tactile and sensory functions that are then relayed to the brain. it is anatomically defined as the portion of finger distal to the insertion of the flexor digitorum superficialis and extensor tendons on the distal phalanx, or the interphalangeal joint when referring to the thumb. the neurovascular supply of the fingertip is. The distribution of the lesions according to allen's classification is shown on fig. 1. the index was injured in 31%, the middle finger in 31%, the ring finger in 26% and the fifth finger in 12%.

Allen S Classification Of Fingertip Injuries And Case Distribution Allen describes five types of fingertip injury based on anatomical zone (fig. 19.1) [7]. type i injuries include only the distalmost pulp of the finger. type ii injuries involve pulp and nail loss, but no damage to the phalanx. type iii injuries involve damage to the pulp, nail, and part of the terminal distal phalanx. Download scientific diagram | allen’s classification of fingertip injuries. 1. type i loss of only the pulp of the finger; 2. type ii, pulp and nail loss without bone fragment in the distal. Residual nail deformity was the usual cause of aesthetic dissatisfaction. in the total population of 1,592 fingertip amputations of our review, there were 100 reported nail deformities, (6 % of the fingertip injuries) [1, 3, 5, 6, 13, 15, 23, 28, 31]. the main residual deformity with secondary healing is the hook nail or parrot beak deformity. Allen’s[1] classification of fingertip injuries into zones i–iv accompanied a prospective series of 57 patients with 60 fingertip amputations. even the most proximal amputations, zone iv through the lunula, healed secondarily. the more proximal the amputated part, the higher is the likelihood of nail deformity. the.

Algorithm Of Fingertip Injuries Treatment According To Allen Residual nail deformity was the usual cause of aesthetic dissatisfaction. in the total population of 1,592 fingertip amputations of our review, there were 100 reported nail deformities, (6 % of the fingertip injuries) [1, 3, 5, 6, 13, 15, 23, 28, 31]. the main residual deformity with secondary healing is the hook nail or parrot beak deformity. Allen’s[1] classification of fingertip injuries into zones i–iv accompanied a prospective series of 57 patients with 60 fingertip amputations. even the most proximal amputations, zone iv through the lunula, healed secondarily. the more proximal the amputated part, the higher is the likelihood of nail deformity. the. Allen has classified fingertip injuries into four types based on the level of injury (1). type 1 injuries involve only the pulp, and type 2 injuries involve the. pulp and nail bed. type 3 injuries include partial loss of the distal. phalanx, whereas type 4 injuries are proximal to the lunula. this. The allen classification subdivides fingertip injuries according to 4 zones: in zone 1 only the pulp is injured, in zone 2 the injury goes through the nail bed without bone involvement, in zone 3 the apex of the distal phalanx is injured up to the lunula, and in zone 4 the injury is proximal to the lunula (like in tamai type ii) [2].