Abstract：
OBJECTIVE: Although SLAP-5 lesions are associated with recurrent dislocations, their causes and pathomechanisms have not been fully elucidated. This study aimed to investigate the association between SLAP-5 lesions and scapular morphology in traumatic anterior shoulder instability (ASI). We hypothesized that there may be a relationship between SLAP-5 lesions and scapular morphology in traumatic ASI patients.
METHODS: The study included 74 patients with isolated Bankart lesions and 69 with SLAP-5 lesions who underwent arthroscopic labral repair for ASI. Critical shoulder angle (CSA) was measured on the roentgenograms, while glenoid inclination (GI) and glenoid version (GV) were measured on magnetic resonance imaging (MRI) by two observers in two separate sessions blinded to each other. Both groups were compared in terms of CSA, GI, and GV.
RESULTS: The mean ages of Bankart and SLAP-5 patients were 28.4±9.1 and 27.9±7.7 (P=0.89), respectively; their mean CSA values were 33.1°±2.6° and 28.2°±2.4°, respectively (P<0.001). The ROC analysis\'s cut-off value was 30.5°, with 75.0% sensitivity and 76.7% specificity (AUC = 0.830). SLAP-5 lesions were more common on the dominant side than isolated Bankart lesions (P=0.021), but no difference was found between the groups in terms of GI and GV (P=0.334, P=0.081, respectively).
CONCLUSIONS: In ASI, low CSA values appeared to be related to SLAP-5 lesions, and the cut-off value of CSA for SLAP lesion formation was 30.5° with 75.0% sensitivity and 76.7% specificity. Scapula morphology may be related to the SLAP-5 lesions, and CSA can be used as an additional parameter in provocative diagnostic tests and medical imaging techniques for the detection of SLAP lesions accompanying Bankart lesions.
METHODS: III retrospective case-control study.
METHODS: The study included 74 patients with isolated Bankart lesions and 69 with SLAP-5 lesions who underwent arthroscopic labral repair for ASI. Critical shoulder angle (CSA) was measured on the roentgenograms, while glenoid inclination (GI) and glenoid version (GV) were measured on magnetic resonance imaging (MRI) by two observers in two separate sessions blinded to each other. Both groups were compared in terms of CSA, GI, and GV.
RESULTS: The mean ages of Bankart and SLAP-5 patients were 28.4±9.1 and 27.9±7.7 (P=0.89), respectively; their mean CSA values were 33.1°±2.6° and 28.2°±2.4°, respectively (P<0.001). The ROC analysis\'s cut-off value was 30.5°, with 75.0% sensitivity and 76.7% specificity (AUC = 0.830). SLAP-5 lesions were more common on the dominant side than isolated Bankart lesions (P=0.021), but no difference was found between the groups in terms of GI and GV (P=0.334, P=0.081, respectively).
CONCLUSIONS: In ASI, low CSA values appeared to be related to SLAP-5 lesions, and the cut-off value of CSA for SLAP lesion formation was 30.5° with 75.0% sensitivity and 76.7% specificity. Scapula morphology may be related to the SLAP-5 lesions, and CSA can be used as an additional parameter in provocative diagnostic tests and medical imaging techniques for the detection of SLAP lesions accompanying Bankart lesions.
METHODS: III retrospective case-control study.
摘要：
目的：尽管SLAP-5病变与复发性脱位相关，其原因和病理机制尚未完全阐明。这项研究旨在探讨SLAP-5病变与肩胛骨形态在创伤性肩关节前不稳定（ASI）中的相关性。我们假设，在创伤性ASI患者中，SLAP-5病变与肩胛骨形态之间可能存在关系。
方法：该研究包括74例孤立的Bankart病变和69例SLAP-5病变的患者，这些患者接受了关节镜下上唇修复术治疗ASI。在X线照片上测量临界肩角（CSA），而关节盂倾角（GI）和关节盂版本（GV）是由两名观察者在磁共振成像（MRI）上测量的，他们在两个单独的会议中彼此失明。两组在CSA方面进行比较，GI,和GV。
结果：Bankart和SLAP-5患者的平均年龄分别为28.4±9.1和27.9±7.7（P=0.89），他们的平均CSA值分别为33.1°±2.6°和28.2°±2.4°，分别(P<0.001)。ROC分析的截止值为30.5°,敏感性为75.0%，特异性为76.7%（AUC=0.830）。SLAP-5病变在优势侧比孤立的Bankart病变更常见（P=0.021），但是在GI和GV方面，两组之间没有发现差异（分别为P=0.334，P=0.081）。
结论：在ASI中，低CSA值似乎与SLAP-5病变有关，CSA对SLAP病变形成的临界值为30.5°，敏感性为75.0%，特异性为76.7%。肩胛骨形态可能与SLAP-5病变有关,和CSA可以用作挑衅性诊断测试和医学成像技术的额外参数，用于检测伴随Bankart病变的SLAP病变。
方法：III回顾性病例对照研究。
方法：该研究包括74例孤立的Bankart病变和69例SLAP-5病变的患者，这些患者接受了关节镜下上唇修复术治疗ASI。在X线照片上测量临界肩角（CSA），而关节盂倾角（GI）和关节盂版本（GV）是由两名观察者在磁共振成像（MRI）上测量的，他们在两个单独的会议中彼此失明。两组在CSA方面进行比较，GI,和GV。
结果：Bankart和SLAP-5患者的平均年龄分别为28.4±9.1和27.9±7.7（P=0.89），他们的平均CSA值分别为33.1°±2.6°和28.2°±2.4°，分别(P<0.001)。ROC分析的截止值为30.5°,敏感性为75.0%，特异性为76.7%（AUC=0.830）。SLAP-5病变在优势侧比孤立的Bankart病变更常见（P=0.021），但是在GI和GV方面，两组之间没有发现差异（分别为P=0.334，P=0.081）。
结论：在ASI中，低CSA值似乎与SLAP-5病变有关，CSA对SLAP病变形成的临界值为30.5°，敏感性为75.0%，特异性为76.7%。肩胛骨形态可能与SLAP-5病变有关,和CSA可以用作挑衅性诊断测试和医学成像技术的额外参数，用于检测伴随Bankart病变的SLAP病变。
方法：III回顾性病例对照研究。
