QWIX screw fixation in repair of patellar fractures: continuous dynamic and static pressure in the broken ends of the bones
Liu Jie, Gao Shi-chang, Liang An-lin
Chinese Journal of Tissue Engineering Research . 2014, (35): 5622 -5626 .  DOI: 10.3969/j.issn.2095-4344.2014.35.009