Assessment of Flap Viability and Post-operative Hand Function After Resurfacing of Acute Soft Tissue Injury onthe Palm of Hand byGroin Flap and Reverse Pedicled RadialForearm Flap

Abstract

Background: Many flaps have been described and used for coverage of various soft tissue defects of hand, which can be regional or distant. Objective: In this study main goal is to evaluate the assessment of flap viability and post-operative hand function by Total Active Motion (TAM) and Hand grip strength. Method: This was a comparative observational study, conducted at department of Orthopaedic Surgery and Burn and Plastic surgery in Sylhet MAG Osmani Medical College Hospital (SOMCH) from January 2018 to October, 2019. A total of 16 patients with acute hand injury or pathology in the palm which may create surgical wound, admitted in the study place during the study period were the study population. Where those who had Acute wound in palm with exposed tendon, nerve and bones or degloving hand injury were included in the study. Patient were divided into two group namely Group-A and Group-B. Patient chosen for groin flap were allocated in group-A and for reverse pedicled radial forearm flap were in group-B. Results: During the study, complete flap survival was 100% in both group A and B. At all the follow-ups hand grip strength was more in group B and the difference was statistically significant (p<0.05, obtained by unpaired t-test). At final follow-up (12 weeks) hand grip strength was 22.38 (SD±5.26) kg in Group A and 30.13 (SD±10.15) kg in Group B.There is no(0.0%) excellent result of index and middle finger in group A patient compared to 3 (37.5%) and 6 (75.0%) patients respectively in group B. Ingroup A3 patient had excellent outcome in ring fingercompared to 7 (87.5%) patients in group B. Majority (87.5%) patient‘s little finger was excellent in group A and 8(100.0%) in group B.The difference of index finger and middle finger were statistically significant between groups (p<0.05 obtained by Fisher Exact test). Conclusion: From this study we can say that, both the handgrip strength and TAM score was better in patients who underwent radial forearm flap and the difference was statistically significant (p<0.05). It is concluded that reverse pedicled radial forearm flap has better outcome regarding flap viability and post-operative hand function than groin flap.