Comparison of Two Methods in the Treatment of Pauwels Type Ⅲ Femoral Neck Fractures

Abstract：Objective To compare the clinical outcomes of hollow screw combined with medial supporting plate and simple hollow screw internal fixation for Pauwels type Ⅲ femoral neck fracture .Methods From October 2016 to April 2017 ,60 patients with Pauwels type Ⅲ femoral neck fractures ,including41 males and 19 females ,were randomly divid-ed into experimental group and control group according to the experimental criteria .The experimental group was treated with hollow screws and medial supporting plate .The control group was treated with simple cannulated screws .The fol-lowing data of the two groups were compared :the blood loss ,operation time ,reduction quality ,the time of fracture healing ,the incidence of complications such as femoral head necrosis and nonunion ,the Harris score at sixth month .Re-sults The blood loss of the control group (59 .8 ± 10 .1) mL ,was lower than the test group (150 .5 ± 28 .2) mL (P＜0 .05).The operation time of the control group (46 .5 ± 8 .110) min ,was lower than the test group (73 .0 ± 7 .834) min (P＜0 .05).The fracture healing time of the test group (4 .33 ± 0 .884) months ,was lower than the control group (5 .48 ± 1 .312) months (P＜0 .05).The test group was better than the control group in the fracture reduction quality and the number of internal fixation failure cases (P＜0 .05).There were no significant differences between the two groups in bone nonunion and femoral head necrosis (P＞0 .05).The Harris score of the test group (88 .37 ± 3 .211) was higher than the control group (82 .47 ± 6 .627) at sixth month (P＜0 .05).Conclusion The outcomes of hollow nail and medial support plate in the treatment of Pauwels type Ⅲ femoral neck fracture is better than that of hollow internal fixation .It has the advantages of high quality of fracture reduction ,fast healing time ,low internal fixation failure rate and good re-covery of hip joint function .