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目的 :观察胸腰椎(T11-L5)骨质疏松性椎体骨折(osteoporotic vertebral fracture,OVF)和中青年椎体骨折患者椎弓根宽度及变化特点。方法:将2012年6月~2015年1月我院收治OVF患者152例作A组,年龄60~95岁平均72.5±7.0岁,BMD-2.5~-5.4SD,平均-3.5±0.65SD;同期收治创伤性胸腰椎骨折患者192例作为B组,年龄26~50岁,平均33.5±4.6岁,BMD未测。均采用CT薄层扫描多平面重建(MPR)技术测量T11~L5各对应脊椎椎弓根宽度(pedicle outer width,POW)。观察两组患者各对应脊椎POW及两组男女性别间各对应脊椎POW差异。两组各对应脊椎POW<5mm及<7mm的百分比。结果 :两组男性T11~L3各对应脊椎POW大于女性(P<0.01)。A组男性T11~L3各对应脊椎POW均小于B组男性(P<0.01),A组女性T11~L3各对应脊椎POW均小于B组女性(P<0.01)。无论组别及性别L4、L5脊椎POW无显著性差异(P>0.05)。POW<5mm的百分比:A组占该组椎弓根测量数的11%,分布于T11~L3,其中男性占椎弓根测量数5%,女性占椎弓根测量数13%;B组占椎弓根测量总数的7%,分布于T12~L2,其中男性占椎弓根测量数5%,B组女性占椎弓根测量数11%。POW<7mm百分比:A组占所测椎弓根总数的53%,分布于T11~L4,其中男性占椎弓根测量数39%,女性占57%;B组占椎弓根测量数的14%,分布于T11~L3,其中男性占该组椎弓根测量数12%,女性占该组椎弓根测量数19%。结论:在胸腰椎尤其是T11-L3部位,老年OVF组椎弓根宽度明显小于中青年组,女性的椎弓根宽度比男性更小。
Objective: To observe the characteristics of pedicle width and change in patients with osteoporotic vertebral fracture (TFS) and thoracic vertebral fractures (T11-L5). Methods: A total of 152 patients with OVF admitted to our hospital from June 2012 to January 2015 were selected as group A. The average age was 72.5 ± 7.0 years (range 60-95 years), BMD-2.5-5.4SD (-3.5 ± 0.65SD) 192 patients with traumatic thoracolumbar fractures as group B, aged 26 to 50 years (average 33.5 ± 4.6 years), BMD was not measured. The pedicle outer width (POW) of each of T11-L5 was measured by thin-slice CT (MPR). POW differences between the two groups were observed corresponding POW vertebral POW and gender differences between the two groups. The two groups each correspond to the percentage of vertebra POW <5mm and <7mm. Results: The POW of spine in T11 ~ L3 of two groups was higher than that of female (P <0.01). The POW of each corresponding vertebra of T11 ~ L3 in group A was less than that in group B (P <0.01). The POW of each corresponding vertebra of T11 ~ L3 in group A was less than that in group B (P <0.01). There was no significant difference in POW of L5 vertebra between L4 and L4 (P> 0.05). The percentage of POW <5mm: A group accounted for 11% of the pedicle measurements in this group, located in T11 ~ L3, of which 5% pedicle measurement and 13% pedicle measurement; Pedicle measurements of 7% of the total, located in the T12 ~ L2, of which 5% of pediatric pedicle measurement, B group of women accounted for 11% of pedicle measurements. POW <7mm Percentage: A group accounted for 53% of the total number of pedicles measured, located in the T11 ~ L4, male accounted for 39% of pedicle measurements, 57% of females; B group accounted for 14 pedicle measurements %, Located in T11 ~ L3, of which 12% of men accounted for the measurement of pedicle pedicle, pedicle 19% of women in the group measured. Conclusion: In the thoracolumbar spine, especially in the T11-L3 site, the pedicle width of the elderly OVF group was significantly smaller than that of the young and middle-aged group. The pedicle width of the female was smaller than that of the male.