A Comparision of Functional Outcomes after Successful Replantation versus Thenar Flap for Single Fingertip Amputations

PURPOSE: This retrospective study was to determine the functional results of patients who were amputated of their fingertip between patients who were treated with replantation and patients who were treated with thenar flap. MATERIALS AND METHODS: From 2004 to 2007, we identified and operated 159 patients who were diagnosed with fingertip amputations. Of 159 patients, Eighty-two patients were treated by replantation (67 in men and 14 in women) and the mean age at the operation was 41 years (range, 15-68 years). Seventy-nine patients was treated with thenar flap(54 in men and 25 in women) and the mean age at the operation was 43 years(range, 21-70 years). We compared variables between two groups including, age, gender, diagnosis, duration of hospital admission, grip strength, two-point discrimination, Semmes Weinstein monofilament test, active range of motion (ROM) of the proximal and distal interphalangeal (PIP and DIP) joint, pain (or tenderness), paresthesia, cold intolerance, the Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire, and finger for activities of daily living (ADLs). RESULTS: The duration of admission was longer in Replantation group than in Thenar flap group(p=0.001). However, the grip strength (p=0.003) and Semmes Weinstein monofilament test (p=0.029) in the Replanation group were statistically superior to the Thenar flap group. The average DASH disability (p=0.003)/symptom score (p=0.007) and ADLs (p<0.001) in the Replantation group was statistically better. In addition, cold intoleranace test of Thenar flap group is worse than the Replantation group. CONCLUSION: This study demonstrate that fingertip replantation have demonstrated not only to obtain the best appearance but also to gain better functional outcome. However, it is impossible to perform replatation, the thenar flap can be limited alternative method for fingertip amputation in aspect of preservation of range of motion and hospitalization time.

Case Report of Avulsion Amputation of Multiple Digits: Use of Rerouting the Transverse Digital Palmar Arch

PURPOSE: Avulsion injuries of digits have been presented for a long time as complex management problems. Despite of microsurgical advances, it is difficult to achieve good functional results and their management remains somewhat controversial. However, in a finger there are three transverse digital palmar arches. The middle and distal transverse digital palmar arches are consistently large(almost 1 mm) and may be used for arterial vessel repairs either proximally or distally, depending on the length and direction needed. 39-year-old man presented with avulsion amputation of the ulnar three digits, was operated using only arterial anastomosis with rerouting the transverse digital palmar arches. METHODS: Replantation was performed using the artery-only technique. Because the digital arteries had been damaged, we did that the transverse digital palmar arches were transposed in an inverted Y to I configuration and were lengthened with rerouting them for the purpose of direct anastomosis of the digital artery. Venous drainage was provided by an external bleeding method with partial nail excision and external heparin irrigation. RESULTS: The authors conclude that complete avulsion amputations with only soft tissue at the distal to insertion of the flexor digitorum superficialis tendon were salvageable with acceptable functional results. All three fingers survived. CONCLUSION: With technical advancements, the transverse digital palmar arches play an important role for finger amputation. Three digital palmar arches give us additional treatment option for the finger amputation. In this case, replantation with only-arterial anastomosis was successful and we obtained good aesthetic and functional outcome.

Clinical Experience of Finger Tip Amputation of Small Finger in 12-Months-Old: Use of the Technique of Artery-Only Anastomosis

PURPOSE: Recently, replantation of fingertip amputation, Zone I by Yamano classification, is still difficult because digital arteries branch into small arteries and also digital veins are hard to separate from the immobile soft tissue. However the replantation of fingertip in adults is a well-established procedure, but the replantation in infant or child is still uncommon. Therefore we present one case of replantation of the fingertip of the small finger in 12-months-old patient. METHODS: We experienced a 12-months-old male amputation of small finger. It had been amputated completely at the level of Zone I by Yamano classification. Replantation was performed using the arteryonly technique with neither vein nor nerve repair. Because the artery has been damaged, it is still possible to make a direct suture by transposing the arterial arch in an inverted Y to I arterial configuration. Venous drainage was provided by an external bleeding method with partial nail excision and repaired margin for approximately 7 days. RESULTS: We were performed replantation in infant with only-arterial anastomosis successfully, result in good recovery of aesthetic and functional outcome. CONCLUSION: In conclusion, although fingertip injury was difficult to replantation in infant and child, we must try it. Because of its functional and cosmetic advantage.

Restoration of the Injured Fingertip with Eponychial Cutaneous Flap

The restoration of the fingernail is not simple in case of amputated distal fingertip which involved the pulp and nail. The nail should maintain a length of at least 2mm from the eponychium for an adequate grip and decent appearance. Various methods to reconstruct the fingernail bed are available. The nail bed graft from amputated finger or great toe, and free onychocutaneous flap are commonly used. The nail bed of the injured tip tends to be atrophied, deformed and failed as a graft. And the great toe is often turned down as a donor. We have restored satisfactorily the nail beds of three injured finger tips with eponychial cutaneous flaps. The pulps were reconstructed with either a reverse dorsal digital island flap or free pulp graft. Repeated again. A mean follow- up was six months. The nail grew up to the average of 3.7mm. All patients were satisfied with the length of the nail and met with good cosmetic results. An eponychial cutaneous flap is useful to restore the nail of the distal fingertip amputation. The procedure is relatively simple and morbidity is minimum.

Clinical Cases of Composite Graft for Reconstruction of Fingertip Amputations using Combination Procedure of Tie-over Dressing and Drain

The treatment of fingertip amputation is difficult and controversial. Although the microsurgery has been accepted as a procedure of choice, in distal location, however, both reattachment of amputated portion as a composite graft and microvascular anastomosis are prone to failure. The fact that microscopic reconstruction of vessels is safer means of replacing amputated digits, makes considerably smaller the need to use the technique of composite graft nowadays. Nevertheless, there still remains a group of distal digital amputations which cannot be replaced by microsurgical procedure and the composite grafting is the only way of achieving a full length digit with a normal nail complex. Nowadays, it is generally accepted that replacement should be made as early as possible for the prevention of bacterial and proteolytic activity. However, if the replacement is made so quickly that bleeding doesn't stop, there is a layer of clot blocking adhesion between the two surfaces, and the union will not be achieved. We report a new strategy: the tie-over dressing ensures not only fixation, but also hemostasis, and the drainage application is used to drain retained blood, so composite graft doesn't need to be delayed until the bleeding stops. We achieved good results by using this new technique.