Effect of displaced bone blocks on the healing of femoral shaft fractures treated with interlocking intramedullary nail
WANG Xue-bing
LI Li-geng
WU Zhi-xin
WANG Zhi-sheng
Abstract：Objective To investigate the effect of displaced bone blocks on fracture healing in patients with femoral shaft fracture treated with interlocking intramedullary nail. Methods A total of 174 patients [93 males and 81 females, aged 40.2(22-65) years]with femoral shaft fractures treated by interlocking intramedullary nail from May 2010 to May 2015 were retrospectively analyzed.According to the size and distance of the displaced bone, they were divided into 4 groups: group A (the area of displaced bone blocks is less than or equal to fifteen square centimeters,the shift distance of bone blocks is less than or equal to ten millimeter, n=60), group B (the area of free fracture block is less than or equal to fifteen square centimeters,the shift distance of bone blocks is greater than ten and less than twenty millimeter, n=27),group C (the area of free fracture block is greater than fifteen and less than thirty square centimeters,the shift distance of bone blocks is less than or equal to ten millimeter, n=62) and group D (the area of free fracture block is greater than fifteen and less than thirty square centimeters,the shift distance of bone blocks is greater than ten and less than twenty millimeter, n=25).Then the fracture healing time,the fracture healing rate and the postoperative clinical curative effect of the four groups were compared. Results Comparison between the four groups indicated that, the indicators were all statistically significant.Group A had the best healing condition (98.33%) while group D had the worst condition (56%).The excellent and good rate of group A, B, C, D was 96.67%, 77.78%, 83.87% and 48.00%,respectively. Conclusion The free bone block has influence on fracture healing.When the area of the displaced bone blocks and the shift distance of bone increases, the corresponding bone defect area is also increased, so the fracture healing time is prolonged,the fracture healing rate and the excellent rate of postoperative function is also decreased.Therefore, in the surgical treatment,the patients with large displaced bone blocks should be given adequate attention, in case of postoperative complications.
Keywords：femoral shaft fractureintramedullary naildisplaced bone blockshealinginternal fixation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 574-577 )