Symeonides P P, Hatzokos I, Christoforides J, Pournaras J
Aristotelian University, Thessaloniki, Greece.
J Bone Joint Surg Br. 1995 Sep;77(5):687-90.
We measured torsion of the humeral head in 38 patients (40 shoulders) with recurrent anterior dislocation of the shoulder (RADS) and in 40 normal subjects. We found a reduced mean retroversion in the patients with RADS at 4.3 +/- 10.56 degrees (17 degrees anteversion to 32 degrees retroversion) as compared with 16.1 +/- 11.07 degrees in the control group (0 degrees to 49 degrees) (p = 0.0001). There was anteversion in 11 of the 40 shoulders in the RADS group (27.5%) and in none of the control group. The first dislocation had occurred after minimal force in 18 of 25 patients with less than 10 degrees retroversion, but in only three of 15 with over 10 degrees retroversion. We conclude that decreased retroversion of the humeral head is often associated with RADS and with first dislocation of the shoulder caused by minimal force.
我们对38例复发性肩关节前脱位（RADS）患者（40个肩关节）和40名正常受试者的肱骨头扭转情况进行了测量。我们发现，RADS患者的平均后倾角降低，为4.3±10.56度（前倾角17度至后倾角32度），而对照组为16.1±11.07度（0度至49度）（p = 0.0001）。RADS组40个肩关节中有11个存在前倾角（27.5%），而对照组中没有。在25例后倾角小于10度的患者中，有18例在受到极小外力后首次发生脱位，但在15例后倾角超过10度的患者中，只有3例是这样。我们得出结论，肱骨头后倾角降低常与RADS以及由极小外力导致的首次肩关节脱位相关。
