Early changes in nutrient artery blood flow following tibial nailing with and without reaming: A preliminary study

被引:28
作者
Brinker, MR
Cook, SD
Dunlap, JN
Christakis, P
Elliott, MN
机构
[1] Texas Orthoped Hosp, Fondren Orthoped Grp LLP, Houston, TX 77030 USA
[2] Tulane Univ, Sch Med, Dept Orthopaed Surg, New Orleans, LA 70112 USA
[3] Rand Corp, Stat Grp, Santa Monica, CA USA
关键词
tibia; nutrient artery; flow; reaming; nailing;
D O I
10.1097/00005131-199902000-00010
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Objective: To quantify the changes in nutrient artery blood flow following reamed and unreamed nailing of intact canine tibias. Design: In vivo animal study. Intervention: Eighteen dogs underwent nutrient artery blood flow measurements over a fourteen-day period. The intervention groups consisted of controls (Group I), nailing without reaming (Group II), and nailing with reaming (Group III). Main Outcome Measurements: Nutrient artery blood flow was measured through implantable ultrasonic blood flow probes placed around the nutrient artery of the tibia. Results: Nutrient artery blood flow averaged 1.94 milliliters per minute over the fourteen-day period in Group I (no reaming or nailing performed). Nutrient artery blood flow following nailing without reaming (Group II) decreased to 44 percent of baseline values immediately after the procedure. By postoperative day 1, flow had decreased to 23 percent of baseline; over the fourteen-day period, nutrient artery blood flow recovered toward baseline values. Immediately following nailing with reaming (Group III), nutrient artery blood flow measured zero milliliters per minute. Over the fourteen-day period, nutrient artery blood flow in this group averaged 39 percent of the baseline level (range 19 to 58 percent). Whereas nutrient artery blood flow recovered toward baseline values (99 percent of baseline) by fourteen days in Group II, nutrient artery blood flaw measured only 26 percent of the baseline level on postoperative day fourteen in Group III. Conclusions: The preliminary data suggest that nailing with reaming provides a double insult to the nutrient artery distribution.
引用
收藏
页码:129 / 133
页数:5
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