摘要
目的:评价手法治疗对兔膝关节软骨浅层和深层缺损修复的效果。方法:将24只新西兰兔随机分成手法组和对照组。分别在24只兔双侧膝关节的股骨内侧髁造成直径2mm的浅层软骨缺损,在股骨髌面造成直径3mm的深层软骨缺损。造模4周后,手法组采取手法治疗,对照组不采取任何治疗措施。分别于治疗后4、8、12周取材,对缺损区域的修复组织进行外观形态、苏木精和伊红(hematoxylin and eosin,HE)染色、番红O染色以及Ⅱ型胶原免疫组织化学染色观察,并采用O'Driscoll软骨组织形态学评分评价软骨缺损的修复质量。结果:治疗后,手法组软骨浅层缺损和软骨深层缺损渐渐修复。修复组织质地稍软,表面光滑,外观与正常软骨类似,大部分区域与周围正常软骨界限模糊,与周围软骨整合良好。对照组浅层缺损虽然有部分被修复,但所修复组织与周围软骨界限清晰;深层缺损只是缺损面积略减小,未见到缺损修复,或以纤维样组织填充。HE染色显示手法组修复组织内有大量的透明软骨细胞,番红O染色显示手法组修复组织基质染色接近周围正常关节软骨,对照组无染色。Ⅱ型胶原免疫组织化学染色显示,手法组浅层缺损和深层缺损的修复组织Ⅱ型胶原染色与正常软骨相比染色正常甚至较深;对照组浅层和深层缺损的修复组织无染色,修复组织与正常组织界限清晰。O'Driscoll评分结果显示,手法组的浅层缺损和深层缺损的评分均高于同一时间段对照组,差异有统计学意义(P<0.01);治疗后,手法组无论浅层缺损还是深层缺损,各时间点ODriscoll评分比较,差异均无统计学意义(P>0.05)。结论:手法治疗能有效地修复兔膝关节的浅层软骨缺损和深层软骨缺损,修复物质与透明软骨相似。
Objective： To evaluate the efficacy of manipulation therapy in repairing thin-layer and thick-layer articular cartilage defects in rabbits.
Methods： Twenty-four rabbits were randomly divided into manipulation group and control group. Chondral defects in the center of condylus medialis femoris （punch diameter 2. 0 mm, thin-layer defect, without damaging the subchondral bone） and the center of facies patellaris femoris （punch diameter 3.0 mm, thick- layer defect, without damaging the subchondral bone） were made in both side knee joints of the rabbits. Four weeks after chondral defect, the rabbits in the manipulation group were treated with manipulation therapy,while the rabbits in the control group didn＇t take any therapeutic measure. The rabbits were sacrificed after 4-, 8- and 12-week manipulation treatment to obtain the distal femur. The appearance of the chondral defect was first assessed, and then regenerated tissues were stained respectively with hematoxylin and eosin （HE）, safranin O and immunohistochemical methods to observe the changes in pathology. The regenerated tissue O＇ Driscoll score system was also used to evaluate the efficacy of manipulation therapy.
Results： After manipulation treatment, although the thin-layer articular cartilage defects of the control group were partly repaired, a sharp gap between the regenerated tissue and the normal cartilage was visible. The range of the thick-layer articular cartilage defect in the control group became smaller, and the regenerated tissue only consisted of fiber tissue. On the contrary, both the thin-layer defects and the thick-layer defects in the manipulation group were well repaired. The appearance of the regenerated tissues was close to the normal cartilage. The gap between regenerated tissue and normal tissue was disappeared and the regenerated tissue was well integrated with around tissues. HE staining showed that the regenerated tissues in the manipulation group were similar to hyaline cartilage. Safranin O staining showed that matrix stain of the regenerated tissues in the manipulation group was similar to the normal cartilage, but no stain was observed in the control group. The type Ⅱ collagen immunohistochemical staining showed that the color of the regenerated tissues was a little darker than that of the normal cartilage in the two kinds of defects in the manipulation group, and the two kinds of defects in the control group were little stained. The O＇Driscoll cartilage scores of the two kinds of defects in the manipulation group were higher than those in the control group at different time points （P 〈 0. 01）, but there were no differences in O＇ Driscoll scores in the manipulation group among the different time points.
Conclusion： Manipulation therapy is effective in repairing the thick-layer and thin-layer articular cartilage defects. The regenerated tissue is constructed with hyaline cartilage.
出处
《中西医结合学报》
CAS
2009年第4期372-379,共8页
Journal of Chinese Integrative Medicine
关键词
软骨
关节
手法
肌内骨骼
损伤
兔
cartilage, articular
manipulations, musculoskeletal
injury
rabbits
