Experience with the Use of Splint Caps for the Management of Fingertip Amputation Injuries

Background: Fingertip amputation injuries are common hand injuries amongst all ages. If occurring as a result of workplace accidents, these injuries has the potential to lead to significant socioeconomic costs. Non-surgical techniques can treat these injuries with the potential to alleviate the burden of these socioeconomic costs. The aim of our study is to describe an alternative, cost-effective device to manage fingertip amputation injuries, and to present our short-term outcomes with this treatment modality. Methods: A retrospective study of patients with isolated fingertip amputation injuries who received treatment with semi-occlusive dressing and splint cap from 1 February 2018-21 December 2018 was conducted. The semi-occlusive dressing used was UrgoTul. The splint cap is a 3-dimensional thermoplastic splint to cover the semi-occlusive dressing of the injured finger. Results: There were 28 patients and 31 digits. The average age was 39.9 ± 12.7 years. 89.3% were male, 75% were foreign workers, 96.4% were blue-collared workers, 40% had dominant hand injuries and 25.8% had nailbed involvement. The average duration of follow-up was 66 ± 37.4 days and the average duration of hospital leave was 6.5 ± 4 weeks. The splint cap was applied for an average of 18.1 ± 6.2 days. The total time for tissue regrowth was 27.5 ± 8.8 days. 14.8% had residual nail deformities and return of sensation took 31.5 ± 11 days. Grip strength was 82.5% of unaffected hand. The mean range of motion at the distal interphalangeal, proximal interphalangeal and metacarpophalangeal joint was 58.8 ± 21.3°, 86.9 ± 15.5°, 81.4 ± 6.0° respectively, and 63.9 ± 23.6° and 66.3 ± 17.3° at the interphalangeal and metacarpophalangeal joint of the thumb respectively. Cost analysis will be further elaborated in the paper. Conclusions: Fingertip amputation injuries have a potential for regeneration through healing by secondary intention under semi-occlusive dressing conditions. The splint cap provides an easy to fashion, cost-efficient and comfortable addition to semi-occlusive dressings for fingertip injuries.