Kanazawa Kenji, Hagiwara Yoshihiro, Sekiguchi Takuya, Suzuki Kazuaki, Koide Masashi, Ando Akira, Yabe Yutaka
Department of Orthopaedic Surgery, South Miyagi Medical Center, Oogawara, Miyagi, Japan.
Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Miyagi, Japan.
Open Orthop J. 2018 Oct 17;12:396-404. doi: 10.2174/1874325001812010396. eCollection 2018.
Evaluation of the Range Of Motion (ROM) is one of the important procedures for shoulder disorders. The purpose of this study was to investigate correlations between capsular changes and ROM restrictions evaluated by both plain magnetic resonance imaging (MRI) and Magnetic Resonance Arthrography (MRA) in the same patients with frozen shoulder.
Between March 2015 and June 2016, 24 patients with frozen shoulders (13 male and 11 female patients, mean age 60.5) with severe ROM restriction who underwent both MRI and MRA on the same affected side were evaluated. We evaluated 1) ROM, 2) the coracohumeral ligament (CHL) thickness, 3) the joint capsule thickness in the axillary recess (humeral and glenoid sides), 4) the area of the axillary recess, and 5) the capsular area of the axillary recess.
Positive correlations were found between the axillary area and forward flexion (FF) (R = 0.43, P = 0.035), lateral elevation (LE) (R = 0.66, P<0.001), external rotation (ER)(R = 0.43, P = 0.035), 90° abduction with external rotation (AER)(R = 0.56, P = 0.004), and hand behind the back (HBB)(R = 0.6, P = 0.002) on MRA. Negative correlations were found between the joint capsule at the glenoid side and ER and HBB in both MRI and MRA.
The axillary area was significantly correlated with ROM restriction in FF, LE, ER, AER, and HBB on MRA. Thickness of the joint capsule at the glenoid side is an important factor for ROM restriction in frozen shoulder.
Level 3, Study of Diagnostic Test.
评估活动范围（ROM）是肩部疾病的重要检查步骤之一。本研究的目的是调查在同一肩周炎患者中，通过普通磁共振成像（MRI）和磁共振关节造影（MRA）评估的关节囊变化与ROM受限之间的相关性。
在2015年3月至2016年6月期间，对24例肩周炎患者（13例男性和11例女性患者，平均年龄60.5岁）进行评估，这些患者同一患侧均接受了MRI和MRA检查，且ROM严重受限。我们评估了：1）ROM；2）喙肱韧带（CHL）厚度；3）腋窝隐窝（肱骨侧和肩胛盂侧）的关节囊厚度；4）腋窝隐窝面积；5）腋窝隐窝的关节囊面积。
在MRA上，腋窝面积与前屈（FF）（R = 0.43，P = 0.035）、外展（LE）（R = 0.66，P<0.001）、外旋（ER）（R = 0.43，P = 0.035）、外旋90°外展（AER）（R = 0.56，P = 0.004）以及手背后伸（HBB）（R = 0.6，P = 0.002）之间存在正相关。在MRI和MRA上，肩胛盂侧的关节囊与ER和HBB之间均存在负相关。
在MRA上，腋窝面积与FF、LE、ER、AER和HBB的ROM受限显著相关。肩胛盂侧关节囊的厚度是肩周炎ROM受限的一个重要因素。
3级，诊断试验研究。
