Moosmayer S, Smith H-J, Tariq R, Larmo A
Department of Orthopaedic Surgery, Martina Hansen's Hospital, P B 23, 1306 Baerum Postterminal, Norway.
J Bone Joint Surg Br. 2009 Feb;91(2):196-200. doi: 10.1302/0301-620X.91B2.21069.
We undertook clinical and ultrasonographic examination of the shoulders of 420 asymptomatic volunteers aged between 50 and 79 years. MRI was performed in selected cases. Full-thickness tears of the rotator cuff were detected in 32 subjects (7.6%). The prevalence increased with age as follows: 50 to 59 years, 2.1%; 60 to 69 years, 5.7%; and 70 to 79 years, 15%. The mean size of the tear was less than 3 cm and tear localisation was limited to the supraspinatus tendon in most cases (78%). The strength of flexion was reduced significantly in the group with tears (p = 0.01). Asymptomatic tears of the rotator cuff should be regarded as part of the normal ageing process in the elderly but may be less common than hitherto believed.
我们对420名年龄在50至79岁之间的无症状志愿者的肩部进行了临床和超声检查。对部分病例进行了MRI检查。在32名受试者（7.6%）中检测到肩袖全层撕裂。患病率随年龄增长如下：50至59岁，2.1%；60至69岁，5.7%；70至79岁，15%。撕裂的平均大小小于3厘米，大多数情况下（78%）撕裂局限于冈上肌腱。撕裂组的屈曲力量显著降低（p = 0.01）。肩袖无症状撕裂应被视为老年人正常衰老过程的一部分，但可能比迄今认为的更为少见。
