【摘要】 目的通过对骶骨的解剖学测量,为骶骨纵形骨折后路钢板固定的临床应用提供钉道基础数据。方法选取20例成人骶骨标本,按骶骨后路钢板固定置钉的钉道要求,设定进针点:骶(S1)关节突外侧a点,S1关节突下侧b点,S2、S3、S4的入点c、d、e位于a点与S4骶骨后孔假想连线上,且各位于上下骶骨后孔间连线的中点处;两侧进针点间的距离分别为af、bg、ch、ci、dj、ek;内侧钉道长度分别为A1、A2、B、C、D、E;外侧钉道长度分别为F、G、H、I、J、K和外侧钉道角度分别为Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ、Ⅵ。结果 A1、A2、B值分别为(31.70±3.54)mm、(35.59±4.50)mm和(27.83±3.80)mm;F、G、H、I、J值分别为(43.68±5.11)mm、(30.10±4.00)mm、(27.66±3.33)mm、(23.51±3.26)mm和(18.72±4.18)mm;Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ值分别为(5.75±4.14)°、(12.65±5.22)°、(10.05±6.78)°、(8.75±5.87)°和(16.33±8.46)°。结论内外侧置钉进针点间距离适合钢板的使用;置钉钉道长度内侧相对固定,外侧多变;外侧置钉角度变化较大。更多还原

【Abstract】 Objective To provide basic data of the screw channel for the clinical application of the posterior internal fixation with a steel plate for vertical sacral fractures through the anatomic measurement of the sacrum.Methods According to the requirement of the screw channel of the sacral posterior internal fixation with a steel plate,the inserting sites were determined on 20 cases of the selected adult sacrum specimens: point a at the in lateral side of S1 articular process,point b at the downside of S1 articular process,points c,d and e of S2,S3 and S4 along the imaginary line between point a and the top edge of S4 dorsal sacral foramina,respectively,at the midpoint of the line between adjacent dorsal sacral foraminas.The distances between inserting sites were af,bg,ch,ci,dj and ek,respectively;the lengths of inside screw channels were A1,A2,B,C,D and E,respectively;the lengths of outside screw channels were F,G,H,I,J and K,respectively and the angles of outside screw channels were Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴand Ⅵ,respectively.Results A1,A2 and B values were(31.70±3.54)mm,(35.59±4.50)mm and(27.83±3.80)mm,respectively;F,G,H,I and J values were(43.68±5.11)mm,(30.10±4.00)mm,(27.66±3.33)mm,(23.51±3.26)mm and(18.72±4.18)mm,respectively;Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ values were(5.75±4.14)°,(12.65±5.22)°,(10.05±6.78)°,(8.75±5.87)° and(16.33±8.46)°,respectively.Conclusion The distances between inserting sites,both inside and outside,of screw placement are appropriate for the use of the steel plate;the inside distances of screw channels are relatively fixed,while outside distances are flexible;and the angles of outside screw placement vary greatly.更多还原