The results of surgical treatment for pronation deformities of the forearm in XXXX after a mean follow-up of 17.5  years.

@entity1 @entity2045 @entity6276 @entity121 @entity306
AIM: This study evaluates the effects of three surgical procedures in the treatment of pronation deformities of the forearm in @entity306 @entity1 ; namely the transposition of pronator teres to extensor carpi radialis brevis muscle; and rerouting of the pronator teres muscle with or without pronator quadratus @entity121 . METHODS: Sixty-one @entity1 , 48 male/13 female, with a mean age of 17 years (5-41 years) were treated between 1971 and 2011. Pronator teres transposition was performed in 10, pronator rerouting in 35, and pronator rereouting with pronator quadratus myotomy in 16 @entity1 . Ranges of motion, and assessments using the Quick Dash, Mayo Scoring, and Functional Classification system of @entity2045 , were made before and after surgery. Mean follow-up was 17.5 years (3-41 years). RESULTS: All three procedures led to significantly improved ranges of motion and upper limb function, with good/excellent results in 80 % of @entity1 . Mean active supination improved from 10    (0-60   ) to 85    (30-90   ) (p   <   0.001). There were significant improvements in Functional Classification system for the @entity2045 scores (p   <   0.003), Mean Quick Dash Scores improved from 58.41 (38.63-79.54) to 44.59 (27.27-68.18), and mean MEPS improved from 68 (30-85) to 84 (60-100) following surgery. All three techniques had statistically improved MEPS following surgery (p   <   0.001); only the pronator teres muscle rerouting with pronator quadratus myotomy showed an improved Functional Classification system for the @entity2045 score (p   <   0.05); and only the pronator teres rerouting procedure showed an improved Quick Dash score (p   <   0.05). There were no statistically significant differences in outcomes between different ages groups, and no significant differences between isolated pronator teres muscle rerouting were compared with those undergoing simultaneous treatment of @entity6276 (p   >   0.05). CONCLUSION: Surgery is very effective in the management of pronation deformities of the forearm in @entity1 with @entity306 . Isolated pronator teres rerouting is probably the most effective and simple technique. Adjunctive pronator quadratus myotomy does not lead to an improvement in the results and requires an additional surgical approach. There should be no age restriction to surgery, as all age groups appear to benefit from similar improvements in range of motion and upper limb function.
