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181 results on '"Patel, Minoo"'

15. Subacromial contact after acromioplasty in the rotator cuff deficient shoulder.

Author

Gatto, Laura, Fernando, Ashen, Patel, Minoo, Yeung, Angus, and Ackland, David C.

Subjects
ROTATOR cuff, GLENOHUMERAL joint, SUPRASPINATUS muscles, ABDUCTION (Kinesiology), SUBACROMIAL impingement syndrome, SHOULDER injuries, SHOULDER disorders
Abstract

Subacromial impingement (SAI) is associated with shoulder pain and dysfunction and is exacerbated by rotator cuff tears; however, the role of acromioplasty in mitigating subacromial contact in the rotator cuff deficient shoulder remains debated. This study aimed to quantify the influence of isolated and combined tears involving the supraspinatus on subacromial contact during abduction; and second, to evaluate the influence of acromioplasty on joint space size and subacromial contact under these pathological conditions. Eight fresh‐frozen human cadaveric upper limbs were mounted to a computer‐controlled testing apparatus that simulated joint motion by simulated force application. Shoulder abduction was performed while three‐dimensional joint kinematics was measured using an optoelectronic system, and subacromial contact evaluated using a digital pressure sensor secured to the inferior acromion. Testing was performed after an isolated tear to the supraspinatus, as well as tears involving the subscapularis and infraspinatus‐teres minor, both before and after acromioplasty. Rotator cuff tears significantly increased peak subacromial pressure (p < 0.001), average subacromial pressure (p = 0.001), and contact force (p = 0.034) relative to those in the intact shoulder. Following acromioplasty, significantly lower peak subacromial contact pressure, force and area were observed for all rotator cuff tears involving the supraspinatus at 30° of abduction (p < 0.05). Acromioplasty predominantly reduces acromion thickness anteriorly thereby reducing subacromial contact in the rotator cuff deficient shoulder, particularly in early to mid‐abduction where superior glenohumeral joint shear force potential is large. These findings provide a biomechanical basis for acromioplasty as an intervention for SAI syndrome and as an adjunct to rotator cuff repairs. [ABSTRACT FROM AUTHOR]

Published
2024
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29. Contributors

Author

Bacon, Dennis H., primary, Barnes, Neal, additional, Barron, John, additional, Beards, Christopher, additional, Bevan, Jonh S., additional, Blaen, Ronald J., additional, Blazynski, Tadeusz Z., additional, Carvill, James, additional, Clarkson, Trevor G., additional, Compton, Paul, additional, Coveney, Vince, additional, Cullum, Roy D., additional, Davies, A., additional, Easton, Raymond J.H., additional, Eliades, Philip, additional, Enright, Duncan S.T., additional, Fraser, Charles J., additional, Goodger, Eric M., additional, Gregory, Edward N., additional, Hatton, Dennis R., additional, Herraty, Tony G., additional, Hodskinson, Martin, additional, Hutchinson, Allan R., additional, Lewins, Jeffery D., additional, Lewis, Michael W.J., additional, Livesley, R.Ken, additional, McVeigh, J. Cleland, additional, Mair, Gordon M., additional, Mazda, Fraidoon, additional, Middlebrook, Bert, additional, Milne, John S., additional, Myler, Peter, additional, Noltingk, Ben, additional, Paine, Robert, additional, Painter, John R., additional, Patel, Minoo H., additional, Pritchard, George E., additional, Richardson, Donald B., additional, Riddiford, Carl, additional, Robertson, Ian, additional, Sharpe, Roy, additional, Sherrington, Ian, additional, Smith, Edward H., additional, Stevens, Keith T., additional, Tucker, Peter, additional, Turton, Robert K., additional, Walker, Ernie, additional, Webster, Roger C., additional, Weston-Hays, John, additional, and Wyatt, Leslie M., additional

Published
1994
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50. Healing segmental diaphyseal defects using membrane guided bone regeneration

Author

Patel, Minoo Keki

Subjects
Bone density, Bone regeneration
Abstract

Segmental gap defects in long bones are amongst the most difficult to heal. Membrane guided bone regeneration is a type of guided tissue regeneration wherein the gap defect is contained within a membrane – usually semi-permeable. The aim of this thesis was to establish a reproducible cross-species model and to investigate the nature of membrane guided bone regeneration in detail. In a sheep tibia model, using reinforced ePTFE (expanded poly-tetra-fluoro-ethylene) tubes, critical 2.5 cm gap defects healed in 13/13 sheep compared with healing in only 2/11 in the control group (p

Published
2009
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