Efficacy of third-generation absorbable rods in the treatment of Mason type II-IV radial head fractures in adults

[Objective]To explore the methods,feasibility,and clinical efficacy of third- generation absorbable rods in the treatment of Mason type Ⅱ- IV radial head fractures in adults.[Method]From August 2010 to March 2013,80 patients from our hospital with a radial head fracture were enrolled. The radial head was revealed through a small incision on the outer elbow.Third- generation absorbable rods( diameter 2 mm) were used to cross fix the radial head fracture. The patient participated in functional exercise 3- 4 weeks after cast immobilization. Radiographs were reviewed during the regular follow- up,and the patient's functional status was evaluated according to Metaizeau elbow score standards. The clinical efficacy of different types of radial head fractures was compared.[Result]The wound healing rate was 100%. The postoperative follow- up duration was 1- 3years( average,1. 7 ± 0. 5 years). Based on Metaizeau elbow score standards,among 28 cases of Mason type Ⅱ radial head fractures,the score was excellent in 20,good in 8,medium in 0,and poor in 0 patients; among 41 cases of Mason type Ⅲ radial head fractures,the score was excellent in 17,good in 13,medium in 1,and poor in 0 patients; among 11 cases of Mason type Ⅲradial head fractures,the score was excellent in 1,good in 7,medium in 2,and poor in 1 patient. The use of third- generation absorbable rods demonstrated the best result in Mason typeⅡ radial head fractures,followed by Mason type Ⅲ,and the worst result in Mason type Ⅳ fractures. One patient with Mason type Ⅲ radial head fracture required a second surgery due to complications.[Conclusion]The use of third- generation absorbable rods in the treatment of Mason type Ⅱ- IV radial head fractures requires a simple surgical technique with a hidden incision,lesser trauma,and fewer complications. Its use helps avoid fixator removal surgery and thereby reduces patient suffering,which is considered a worthy cause in clinical practice.