• Arch Orthop Trauma Surg · Feb 2018

    Early postoperative magnetic resonance imaging findings after arthroscopic rotator cuff repair: T2 hyperintensity of the capsule can predict reduced shoulder motion.

    • Ji Na Kim, Soon Tae Kwon, and Kyung Cheon Kim.
    • Department of Radiology, Chungnam National University Hospital, Daejeon, Republic of Korea.
    • Arch Orthop Trauma Surg. 2018 Feb 1; 138 (2): 247-258.

    IntroductionThe purpose of this study was to investigate whether postoperative shoulder magnetic resonance imaging (MRI) findings correlate with postoperative shoulder range of motion (ROM) at about 4 months after arthroscopic rotator cuff repair (ARCR).Materials And MethodsSignal-intensity changes of the capsule, pericapsular soft tissue at the axillary recess, and subcoracoid fat triangle, as well as the thickness of the capsule at the axillary recess and coracohumeral ligament were assessed on preoperative and postoperative MR images of 232 patients. The ROM was evaluated preoperatively and at about 4 months after ARCR.ResultsT2 hyperintensity of the capsule, pericapsular soft tissue at the axillary recess, and signal change of the subcoracoid fat triangle were detected in 155, 107, and 89 cases, respectively, on postoperative MRI. Among these cases, 129, 98, and 69 cases, respectively, showed newly developed signal changes. The mean thicknesses of the capsule and coracohumeral ligament were 1.89 ± 0.69 and 1.64 ± 0.51 mm, respectively, on preoperative MRI and 3.74 ± 1.12 and 2.42 ± 0.56 mm, respectively, on postoperative MRI. At the 4-month follow-up, the mean external rotation (ER), internal rotation (IR), abduction, forward flexion, and extension were 77, 73, 76, 83, and 82%, respectively, of the contralateral side. Newly developed T2 hyperintensity of the capsule and pericapsular soft tissue at the axillary recess on postoperative MRI significantly correlated with the postoperative limitation of ER (p = 0.039) and IR (p = 0.020).ConclusionsNewly developed signal changes of the capsule, pericapsular soft tissue at the axillary recess, and subcoracoid fat triangle were often detected on postoperative MRI at 4 months after ARCR. Furthermore, newly developed T2 hyperintensity of the capsule and pericapsular soft tissue at the axillary recess correlated with limited ROM in ER and IR at 4 months after ARCR.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…