非止点性跟腱病患者的肌骨超声显像特征

目的  分析非止点性跟腱病患者肌骨超声显像特征。方法  收集2020年11月~2022年4月共60例患者82足跟腱超声结果，将其分为健康对照组(A组，15例30足)和非止点性跟腱病组(B组，45例52足)，应用肌骨超声和彩色多普勒血流显像观察并分析比较各组：(1)跟骨后结节上2 cm处跟腱厚度; (2)跟腱止点上2 cm处跟腱横截面积; (3)跟骨上缘上1 cm处Kager脂肪垫前后径; (4)跟骨后滑囊积液检出率; (5)跟腱内血流信号检出率。总结归纳非止点性跟腱病的超声显像特征。结果  (1) 跟骨后结节上2 cm处跟腱厚度：A组小于B组(0.43±0.06 cm vs 0.55±0.17 cm，P < 0.05);(2)跟腱止点上2 cm处跟腱横截面积：A组小于B组(0.52±0.11 cm² vs 0.74±0.23 cm²，P < 0.05);(3)跟骨上缘上1 cm处Kager脂肪垫前后径：A组小于B组(1.01±0.21 cm vs1.49±0.26 cm，P < 0.05);(4)跟骨后滑囊积液检出率：A组未检出，B组38.46%，差异有统计学意义(P < 0.05);(5)跟腱内血流信号检出率：A组未检出，B组51.92%，差异有统计学意义(P < 0.05)。结论  非止点性跟腱病超声显像特征为跟腱厚度增厚，跟腱横截面积增大，跟腱前Kager脂肪垫前后径增宽，跟骨后滑囊积液产生或增加，以及跟腱内部血管增生。

Musculoskeletal ultrasonographic features of noninsertional Achilles tendinopathy

  Objective  To summarize the musculoskeletal ultrasonographic features of noninsertional Achilles tendinopathy.  Methods  Ultrasound results of 82 Achilles tendons in 60 cases were collected from November 2020 to April 2022, and 15 cases including 30 feet were set as healthy control group (group A), 45 cases including 52 feet as noninsertional Achilles tendon group (group B). Musculoskeletal ultrasound and color Doppler flow imaging were used to observe and compare the features of the noninsertional Achilles tendon: (1) The thickness of Achilles tendon at 2 cm above the posterior calcaneal tubercle; (2) The cross-sectional area of Achilles tendon at 2cm above the Achilles tendon insertion point; (3)The anterior-posterior diameter of Kager fat pad at 1cm above the upper edge of calcaneus; (4)The detection rate of retrocalcaneal bursal effusion; (5)The detection rate of blood flow signal in Achilles tendon. The features of noninsertional Achilles tendinopathy were summarized.  Results  (1) The thickness of Achilles tendon at 2 cm above the posterior calcaneal tubercle: group A was less than group B (0.43± 0.06 cm vs 0.55±0.17 cm, P < 0.05). (2)The cross-sectional area of Achilles tendon at 2 cm above the Achilles tendon insertion point: group A was less than group B (0.52±0.11 cm2 vs 0.74±0.23 cm2, P < 0.05). (3)The anterior-posterior diameter of Kager fat pad at 1 cm above the upper edge of calcaneus: group A was smaller than group B (1.01±0.21 cm vs 1.49±0.26 cm, P < 0.05). (4) The detection rate of retrocalcaneal bursal effusion: negative in group A and 38.46% in group B, the difference was statistically significant (P < 0.05). (5)The detection rate of blood flow signal in Achilles tendon: group A was not detected and 51.92% in group B, the difference was statistically significant (P < 0.05).  Conclusion  Noninsertional Achilles tendinopathy was characterized by thickening of Achilles tendon thickness, increasing of cross- sectional area of Achilles tendon, widening of anterior-posterior diameter of Kager fat pad, increasing of retrocalcaneal bursal effusion and the blood flow signal in Achilles tendon.