A study of function after tibial cast bracing

103 patients with fresh unilateral fractures of the tibial shaft were reviewed clinically and radiologically to assess the results of treatment by functional bracing. At review, 84 had returned to their previous employment and all but 22 could run. All had full knee movements, 85 per cent had a normal range or a mild loss of subtalar movement, and only 11 patients had greater than 25 per cent reduction of measured ankle movement. The average shortening measured radiologically was 0.5 cm. Angulation greater than 10 degrees was present in 1 patient. Factors leading to delayed union include comminution, severe displacement, open injuries and not bearing weight. The importance of early weight bearing is discussed.