Intermethod agreement and interobserver correlation of radiologic acromiohumeral distance measurements

Werner, Clément M. L.; Conrad, Samuel J.; Meyer, Dominik C.; Keller, Adreas; Hodler, Juerg; Gerber, Christian

doi:10.1016/j.jse.2007.06.002

Cited by 98 publications

(73 citation statements)

References 11 publications

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“…The correlation coefficient between the UMI as measured on plain radiographs versus CT was even greater (r = 0.86) when shoulder radiographs are taken in a controlled fashion [34]. The interobserver variability for measurement of the AHI on MRI or CT was reported as 0.8 by Werner et al [39]. The interobserver variability for measurement of the UMI in our study was 0.23 (fair).…”

Section: Discussionsupporting

confidence: 45%

“…Third, MRI is obtained with the patient in the supine position whereas plain radiographs are performed with the patient sitting. Despite this, the two techniques reportedly [39] have an intermethod correlation coefficient for the AHI of r = 0.6 (moderately high). The correlation coefficient between the UMI as measured on plain radiographs versus CT was even greater (r = 0.86) when shoulder radiographs are taken in a controlled fashion [34].…”

Section: Discussionmentioning

confidence: 91%

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Does the Upward Migration Index Predict Function and Quality of Life in Arthroscopic Rotator Cuff Repair?

Lapner

Simon

et al. 2010

Clinical Orthopaedics &Amp; Related Research

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Background Although upward humeral head migration is a well-recognized phenomenon in patients with tears of the cuff, it is unclear whether it relates to patient function after cuff repair. The upward migration index (UMI) assesses proximal migration of the humeral head while controlling for patients' bony morphologic features. Questions/purposes We asked whether functional and quality-of-life (QOL) improvement occurs longitudinally in patients with low, moderate, or high degrees of proximal humeral migration after arthroscopic cuff repair and whether differences occur between groups. Patients and Methods We retrospectively reviewed 118 patients with full-thickness tears treated by arthroscopic cuff repair. Patients were divided into three groups depending on the severity of preoperative proximal humeral migration seen on MRI. We determined function using two functional scores and the Western Ontario Rotator Cuff Index (a QOL index). Evaluations were performed preoperatively and 6 and 12 months postoperatively. A general linear model analysis controlled for patient characteristics, including the UMI, to determine their effects on functional and QOL scores. Results Function and QOL improved after surgery in all three groups. The UMI did not correlate with final functional or QOL scores. Six-month functional and QOL scores correlated with final scores. The best predictor of final strength was initial strength. Conclusions Preoperative UMI did not correlate with functional or QOL improvements after surgery. The data suggest substantial proximal migration of the humeral head, as measured by the UMI, should not be considered a contraindication to arthroscopic rotator cuff repair. Level of Evidence Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.

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Section: Discussionsupporting

confidence: 45%

Section: Discussionmentioning

confidence: 91%

Does the Upward Migration Index Predict Function and Quality of Life in Arthroscopic Rotator Cuff Repair?

Lapner

Simon

et al. 2010

Clinical Orthopaedics &Amp; Related Research

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“…The proximal line (line D) was placed tangent to the sclerotic line, representing the ´roof`at the undersurface of the acromion. Some scholars also use this line to measure the acromiohumeral distance (Werner et al, 2008;Thompson et al, 2011). A second line was drawn tangentially to the superior and inferior osseous margins of the glenoid cavity, which is the same as in measuring AI.…”

Section: Methodsmentioning

confidence: 99%

An Anthropometry Study of the Shoulder Region in a Chinese Population and its Correlation with Shoulder Disease

Zhang

et al. 2013

Int. J. Morphol.

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SUMMARY:Purpose: There is a paucity of data which reflected the relationship between morphology and incidence of shoulder disorders with respect to the ethnic Chinese population. We used anteroposterior radiographs to measure the Acromion Index (AI) and Acromioglenoid Angle (AA) of Chinese patients. The baseline was defined as the line that connected the superior and inferior osseous margins of the glenoid cavity. In order to calculate the AI, the distance from the baseline to the lateral margin of the acromion was measured and then divided by the distance from the baseline to the lateral aspect of the humeral head. The AA was defined as the angle formed by the intersecting line drawn tangent to the sclerotic line of the acromion undersurface and the baseline point. The AI and AA were determined in three groups: 165 patients (average age, 60.2 years) with chronic shoulder symptoms; in an age and gender-matched acute injury group of 61 patients (average age, 44.3 years); and in an age and gender-matched control group of 63 volunteers (average age, 37.3 years).The average AI and standard deviation was 0.72 ± 0.06 in shoulders with subacromial impingement syndrome, 0.59 ± 0.06 in those with acute injury, and 0.66 ± 0.06 in normal shoulders. The average AA and standard deviation was 76.8°±7.02 in shoulders with subacromial impingement syndrome, 84.2°±7.81 in those with acute injury, and 80.0°± 7.33 in normal shoulders. The AI and AA varied between patients with acute and chronic shoulder problems.

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“…Az AHD-t Werner közleményében leírt módon mértük meg [25]. Az acromion alsó corticalis felszínére fektetett egyenes, valamint a caput humeri legfelső cranialis csú-csát érintő, az előzővel párhuzamos egyenes közti távol-ság adja meg az AHD-t. Az ép oldalhoz képest 5 esetben (23,8%) volt szűkebb az acromion és a humerusfej …”

Section: Az Acromiohumeralis Távolság éS Az éLetminőség öSszevetéseunclassified

Functional outcome of arthroscopic rotator cuff repair

et al. 2014

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Bevezetés: A rotátorköpeny rekonstrukciója után kialakuló posztoperatív funkciót rendkívül sok tényező befolyásolja, közülük kiemelten fontos az esetlegesen kialakuló reruptura. Célkitűzés: A szerzők célul tűzték ki az artroszkópos rotátorköpeny-rekonstrukción átesett betegek műtét előtti és utáni állapotának összehasonlítását. Módszer: 2008 és 2012 júliusa között operált 22 beteg 23 vállát vizsgálták prospektíven. Minden esetben fi zikális vizsgálat, röntgen és ultrahang történt. Az életminőséget és a funkcionális eredményeket Constant Score és Vizuális Analóg Skála segítsé-gével határozták meg. Eredmények: A rekonstrukció a használt pontrendszerek alapján a betegek több mint 80%-ánál kiváló vagy jó eredményt hozott, a Constant Score 45-ről 79-re emelkedett, a Vizuális Analóg Skálán mért fájdalom szintje 6,6-ről 2,5-re csökkent. Teljes vastagságú szakadást nem, részleges szakadást 7 esetben (30%) észleltek. Az operált oldalon az acromiohumeralis távolság átlagosan 8,5 mm volt az ép oldalon mért 9,5 mm-rel szemben. Következtetések: Az artroszkópos rotátorköpeny-rekonstrukcióval a nyílt műtéthez hasonló jó eredmények érhetőek el. Orv. Hetil., 2014, 155(16), 620-626. Kulcsszavak: rotátorköpeny, műtéti kezelés, ultrahang, utánkövetéses vizsgálat, vállízület, műtéti kezelés Functional outcome of arthroscopic rotator cuff repairIntroduction: Functional outcome after rotator cuff reconstruction is infl uenced by several factors of which re-rupture is probably the most important. Aim: The aim of the study was to evaluate the postoperative outcome including re-rupture rate after arthroscopic rotator cuff reconstruction. Method: 23 shoulders of 22 patients were examined prospectively. Physical examination, ultrasound and radiography were performed. Quality of life and functional outcome were evaluated using Constant Score and Visual Analog Scale. Results: Excellent or good results were found in 80% of the patients. The Constant Score has increased from 45 to 79, and the level of pain decreased from 6.6 to 2.5. Full-thickness rotator cuff tear was absent, but partial tear occurred in 7 cases (30%). Average acromiohumeral distance in the operated side was 8.5 mm compared to 9.5 mm measured on the contralateral shoulder. Conclusions: Arthroscopic rotator cuff repair is a safe and reliable procedure that provides good results.

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Intermethod agreement and interobserver correlation of radiologic acromiohumeral distance measurements

Cited by 98 publications

References 11 publications

Does the Upward Migration Index Predict Function and Quality of Life in Arthroscopic Rotator Cuff Repair?

Does the Upward Migration Index Predict Function and Quality of Life in Arthroscopic Rotator Cuff Repair?

An Anthropometry Study of the Shoulder Region in a Chinese Population and its Correlation with Shoulder Disease

Functional outcome of arthroscopic rotator cuff repair

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