Contact pressure and glenohumeral translation following subacromial decompression

How much is enough?

Patrick J. Denard, Timothy J. Bahney, Shelley B. Kirby, Robert Orfaly

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Subacromial decompression is a common surgical procedure that has historically included coracoacromial ligament resection. However, recent reports have advocated preserving the coracoacromial ligament to avoid the potential complication of anterosuperior escape. The optimal subacromial decompression would achieve a smooth coracoacromial arch and decreased rotator cuff contact pressures while preserving the function of the arch in glenohumeral stability. We hypothesized that a subacromial decompression with a limited acromioplasty with preservation of the coracoacromial ligament can decrease extrinsic pressure on the rotator cuff similar to a coracoacromial ligament resection, without altering glenohumeral translation. Three different subacromial decompressions, including a "smooth and move," a limited acromioplasty with coracoacromial ligament preservation, and a coracoacromial ligament resection, were performed on 6 cadaveric specimens with intact rotator cuffs. Glenohumeral translation and peak rotator cuff pressure during abduction were recorded. No change in translation was observed after a smooth and move or a limited acromioplasty. Compared to baseline specimens, anterosuperior translation was increased at 30° of abduction following coracoacromial ligament resection (P

Original languageEnglish (US)
JournalOrthopedics
Volume33
Issue number11
DOIs
StatePublished - Nov 2010

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Acromioclavicular Joint
Decompression
Pressure
Rotator Cuff

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Contact pressure and glenohumeral translation following subacromial decompression : How much is enough? / Denard, Patrick J.; Bahney, Timothy J.; Kirby, Shelley B.; Orfaly, Robert.

In: Orthopedics, Vol. 33, No. 11, 11.2010.

Research output: Contribution to journalArticle

Denard, Patrick J. ; Bahney, Timothy J. ; Kirby, Shelley B. ; Orfaly, Robert. / Contact pressure and glenohumeral translation following subacromial decompression : How much is enough?. In: Orthopedics. 2010 ; Vol. 33, No. 11.
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