超声观测结节间沟的临床意义

Observation of intertubercular groove by ultrasonography and its clinical significance

目的探讨超声定量评估结节间沟的解剖结构,以及其对肱二头肌长头腱脱位诊断价值。方法应用超声对24例肱二头肌长头腱脱位患者患侧(脱位组)和100例健康成人双侧(正常组)结节间沟进行扫查,比较两组结节间沟内侧壁角(α)、外侧壁角(β)和大小结节间的曲线距离(C);按α对结节间沟进行分型,比较两组分型情况。结果正常组中,左侧α为63.77°±11.25°,β为53.22°±10.97°,C为(12.90±0.07)mm;右侧α为62.88°±10.55°,β为52.51°±10.94°,C为(15.60±1.15)mm;双侧结节间沟各测量值比较差异均无统计学意义。脱位组中,α为32.17°±12.29°,β为31.41°±8.21°,C为(22.70±0.93)mm。而正常组左、右侧与脱位组结节间沟各测值及分型比较差异均有统计学意义(均P<0.01)。结论超声可清晰显示成人结节间沟形态并进行测量,可作为结节间沟定量评估的有效方法。

Objective To investigate the value of ultrasound in assessing the anatomic structure of intertubercular groove,and diagnosing the dislocation of tendon of long head of biceps.Methods One hundred healthy adults（normal group）and24 patients with biceps long head tendon dislocation（dislocation group） were measured by ultrasonography. Measurements of intertubercular groove including medial angle（α）,lateral angle（β）,curve distance（C）from greater tuberosity to lesser tuberosity were compared between the groups.The type of intertubercular groove were classified with α.Results The mean α,β and C on left side were 63.77°±11.25°,53.22°±10.97°,（12.90±0.07）mm,and on right side were 62.88°±10.55°,52.51°±10.94°,（15.60±1.15）mm,respectively in normal group.There was no statistically significant difference of these parameters between the left and right sides.The α,β and C were 32.17° ±12.29°,31.41° ±8.21°,（22.70 ±0.93）mm,respectively in dislocation group,there were significan difference of α,β and C.Compared with normal group,there was also significant difference of type between two groups（all P0.01）.Conclusion Sonography can clearly show the morphology of intertubercular groove and measure the parameters,it is an effective method for evaluation of the dimensions of the bicipital groove.