Acromial spur: Relationship to aging and morphologic changes in the rotator cuff

Ogawa, Kiyohisa; Yoshida, Atsushi; Inokuchi, Wataru; Naniwa, Toyohisa

doi:10.1016/j.jse.2005.03.007

Cited by 89 publications

(81 citation statements)

References 27 publications

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“…An AI has no relationship with the patients' age (Pearson correlation coefficient is not statistically significant, r00.052, p00.192; AI is measured in centimetres; age is given in years) The vertical axis is AI and the horizontal axis is the five distinct tear size groups, i.e. A partial-thickness articular side tear group, B small-sized full-thickness tear group, C medium-sized full-thickness tear group, D large-sized full-thickness tear group, E massive tear group (AI is measured in centimetres) Since Neer [1,16] reported the impingement theory of the rotator cuff tears, there have been numerous detailed studies [2,9,12,13,[17][18][19][20][21] on the association of the morphologic features of an acromion and glenoid axis with rotator cuff disease. However, whether these are the real risk factors that cause rotator cuff pathology or whether these features are the true cause or effect of rotator cuff tears is still an ongoing debate.…”

Section: Discussionmentioning

confidence: 99%

Can a high acromion index predict rotator cuff tears?

Kim

Ryu

Hong

et al. 2012

International Orthopaedics (SICOT)

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Purpose The purpose of this study was to identify the relationship between an acromion index (AI) and the size of a rotator cuff tear. The hypothesis of our study was that an AI will be higher in patients with a full-thickness tear than in patients with a partial-thickness articular-side tear, and that it can be used as a predictor for the size of a rotator cuff tear. Methods We included 284 patients who had been diagnosed with rotator cuff tears and had undergone arthroscopic rotator cuff repair at our institute. All patients were divided into five distinct groups (partial-thickness articular side tear, and four subgroups of full-thickness tears) depending on the size of the rotator cuff tear on arthroscopy. In each patient, an AI was measured on the pre-operative oblique coronal MR images and then analysed to determine the difference between groups. Results There were statistically significant differences between the partial-thickness articular side rotator cuff tear and large-tomassive rotator cuff tear groups (p<0.01), and the mean value of an AI was highest in the large-sized full-thickness tear group. The AI of the partial-thickness articular-side rotator cuff tear group was statistically different from the large-to-massive rotator cuff tear groups. ConclusionsThe AI can be a predictor which can differentiate a partial-thickness articular-side tear and a large-to-massive rotator cuff tear pre-operatively. However the AI could not provide useful guidance on predicting the differences in tear size in full-thickness tear patients. We suggest that a high AI can be one of the associated factors for progression to large-to-massive rotator cuff tears in a rotator cuff disease.

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Section: Discussionmentioning

confidence: 99%

Can a high acromion index predict rotator cuff tears?

Kim

Ryu

Hong

et al. 2012

International Orthopaedics (SICOT)

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“…The coracoacromial ligament [9,10,20], shape of the acromion [2,3,25], and formation of acromial spurs [21,26] reportedly relate to impingement and their association with rotator cuff tears has been reported. Neer [15] first described the impingement syndrome in 1972 and emphasized the anterior-inferior acromion as the principal afflicted area.…”

Section: Introductionmentioning

confidence: 99%

Classification and Clinical Significance of Acromial Spur in Rotator Cuff Tear: Heel-type Spur and Rotator Cuff Tear

Kim

Lee

et al. 2010

Clinical Orthopaedics &Amp; Related Research

100

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Acromial spurs reportedly relate to the impingement syndrome and rotator cuff tears. We classified the morphologic characteristics of the acromion (shape and thickness) and acromial spurs and determined whether they correlated with rotator cuff tears. We measured acromial shape and thickness using simple radiography and MR arthrography or CT arthrography in 106 patients with full-thickness rotator cuff tears and in 102 patients without tears. Acromial spurs could be classified morphologically into six types: heel, lateral/anterior traction, lateral/anterior bird beak, and medial. We found acromial spurs in 142 of the 208 patients (68%), and their incidence increased with age. The acromial spur was more common in the cuff tear group. The heel type was most common and detected in 59 patients (56%) in the cuff tear group and in 36 patients (35%) in the control group. The flat acromion was more common (60%) than curved and hooked acromion; however, there was no major difference between acromial shape and cuff tear. The mean acromial thickness was 8.0 mm, and the cuff tear group had thicker acromion. These data suggest acromial spurs can be classified according to the distinct morphology, and the most common heel-type spur might be a risk factor for full-thickness rotator cuff tears.

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“…더욱이 견봉의 단순 방사선 영상은 관찰자간 오차가 보고되었다 11,12,24) . 하지만 아직 견봉의 회전근개 자극은 충돌증후군의 중요한 발생원인 으로 고려된다 17,21,26) . 최근 자기공명영상이 보편화되면서 자기공명영상으로 견봉의 정량평가를 시도하고 있다.…”

Section: 서 론unclassified

“…하지만 측정 방법이 다르고 평가 지표들이 표준화 되어 있지 않아 임상에서 각 지표의 상관관계가 각기 다르다 1,8,16,17,21,26,29) . 또한 대 부분의 견봉의 지표들이 사시상면에서의 형태만을 고려 하고 있으나 8,17,21) 대조군으로는 30세 이상이면서 회전근개 파열, 견관 절 불안정성, 퇴행성 견관절 이외의 원인으로 자기공명 관절조영술을 촬영한 환자 16례를 선택하였다 (남:8례, 여:8례,평균연령: 51.3세, 범위, 34~64). 대조군은 유 착성 관절낭염 5례, 지방종 2례, 비특이적 동통 5례, 경부 신경근병증 1례, 견봉쇄골 관절손상 1례, 상관이 두근건 파열 1례였다.…”

Section: 서 론unclassified

Acromion Morphology in Coronal and Sagittal Plane; Correlation with Rotator Cuff Syndrome

Jo¹,

Kim²,

Yoon³

et al. 2009

The Journal of the Korean Shoulder and Elbow Society

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Purpose:We evaluated the correlation of the anatomic parameters of the acromion those represent on the magnetic resonance image (MRI) of impingement syndrome. Materials and Methods : From June, 2004 to December, 2005 cases were surgically proven to be impingement syndrome, and the anterior acromial hooking angle, the lateral acromial hooking angle (AAHA and LAHA) and the acromial hooking index (AHI: the sum of the AAHA and LAHA) were compared to 16 control cases. At the same period, 55 cases were surgically proven to be partial or full thickness rotator cuff tear, and age, gender and twelve anatomic parameters, including the acromial type, the acromial angle, the anterior covering, the acromial slope, the AAHA, the lateral acromial angle, the acromial torsional angle, the lateral acromial angulation, the LAHA, the lateral covering, the acromiohumeral distance and the AHI were assessed. Results: The AAHA and AHI were increased as impingement syndrome proceeded. The acromial type and acromial angle, and the AAHA, LAHA and AHI showed significant differences between the controls and the rotator cuff tear patients on univariant analysis. On multivariant analysis, gender was most strongly correlated with rotator cuff tear. Age, AAHA and the acromial angle showed similar correlation, respectively. Conclusion: The coronal acromial shape is correlated with rotator cuff tear, and it is important to correct the lateral acromial shape when performing acromioplasty.

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Acromial spur: Relationship to aging and morphologic changes in the rotator cuff

Cited by 89 publications

References 27 publications

Can a high acromion index predict rotator cuff tears?

Can a high acromion index predict rotator cuff tears?

Classification and Clinical Significance of Acromial Spur in Rotator Cuff Tear: Heel-type Spur and Rotator Cuff Tear

Acromion Morphology in Coronal and Sagittal Plane; Correlation with Rotator Cuff Syndrome

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