• M S Islam, M T Hossain, M N Uddin, M R Chowdhury, and M S Hasan.
• Dr Md Saiful Islam, Associate Professor, Orthopedic Surgery, Community Based Medical College Bangladesh, Mymensingh.
• Mymensingh Med J. 2018 Oct 1; 27 (4): 798-804.

AbstractWe conducted a study to evaluate the reliability of the medial hemi-soleus muscle flap for wound coverage of infected open fracture of distal third of tibia. Wound coverage of exposed lower third tibia and ankle region remains a difficult task. Muscle flaps are preferred for infected wounds especially where there are exposed bone, joint and/or tendons. Soleus muscle is a good option for local reconstruction. Soleus being the prime ankle plantar flexor and stabilizer of the ankle in ambulation cannot be sacrificed without significant morbidity. Soleus is a bipennate muscle with independent blood supply of each half. Using one half retains its important function, increases arc of rotation, and makes it easy to orientate for coverage of defect of any shape thus obviating the need for use of whole Soleus muscle flap. So, medial hemisoleus muscle flap is a superior option than the whole Soleus. This post-intervention prospective study which was descriptive in nature was conducted at department of Orthopedics, Community Based Medical College Hospital, Mymensingh, Bangladesh from January 2012 to December 2012. Ten patients with distal third tibial defects were included in the study. Data was obtained by history taking, observation, clinical examination, supported by routine laboratory and radiological investigations. Before intervention they underwent to careful vascular study of the affected limb through Doppler ultrasonography. All the patients were provided soft tissue coverage with distally based medial hemi-soleus muscle flaps with split thickness skin graft on it. All the flaps survived with primary healing of the wound. Among the participants there were 7 male and 3 female with average age 44.60 years, SD 13.73 years. Eight patients were injured by road traffic accident and 2 patients had history of alleged assault. The wound size defects in primary site ranged from 4cm to 9cm in length and 3cm to 6.5cm in breadth. All the wounds in the primary site were infected. The fractures in the primary site were open fractures involving distal third of tibia. In the secondary site the injuries were fracture upper third tibia in the other lower limb 2, fracture femur on other lower limb 1, dislocation shoulder joint on the same side upper limb 1. The follow up period ranged from 8-16 weeks (average 12 weeks). The outcome was successful. All flaps survived without complication. Hemisoleus muscle flap is a valuable local option for soft tissue coverage of distal third of leg. It does not sacrifice the whole soleus muscle. Due to its longer arc of rotation, this flap can cover the defect of different size and shape in distal third of leg.

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