Ultrasonographic and biochemical parallels in the assessment of the muscular status in the leg being lengthened

The biochemical indices of energy metabolism and creatine phosphokinase activity in peripheral blood were compared with echo-density changes of the extensor digitorum longus and the anterior tibial muscle in 18 patients at the age of 5-15 during surgical lengthening of congenitally shortened leg. The results obtained allow to affirm the correlation of different manifestation and purpose between the biochemical indices and the echo-density of muscles of the leg under lengthening in different periods of treatment. In the very beginning of fixation period echo-density has a direct relation to creatine phosphokinase activity and reflects the level of degenerative processes in muscular tissue. In the second half of fixation period when circulatory-and-metabolic conformity is recovered with feedback of glycolysis systemic index and echo-density index, the latter is caused by reparative processes in muscular tissue.