000			03854nam a22006017a 4500
008			210217s20212021 xxu||||| |||| 00| 0 eng d
022			_a1058-2746
024			_a10.1016/j.jse.2020.11.024 [doi]
024			_aS1058-2746(21)00014-8 [pii]
040			_aOvid MEDLINE(R)
099			_a33482371
245			_aDermal Allograft Superior Capsule Reconstruction Biomechanics and Kinematics.
251			_aJournal of Shoulder & Elbow Surgery. 30(9):2156-2165, 2021 Sep.
252			_aJ Shoulder Elbow Surg. 30(9):2156-2165, 2021 Sep.
252			_zJ Shoulder Elbow Surg. 2021 Jan 19
253			_aJournal of shoulder and elbow surgery
260			_c2021
260			_fFY2021
265			_saheadofprint
265			_sppublish
266			_d2021-02-17
268			_aJournal of Shoulder & Elbow Surgery. 2021 Jan 19
269			_fFY2021
501			_aAvailable online from MWHC library: 1995 - present, Available in print through MWHC library:2004 - 2007
520			_aCONCLUSIONS: In an irreparable supraspinatus tear model, the dermal allograft SCR showed competency in stabilizing the glenohumeral joint, decreasing glenohumeral and subacromial contact pressures, and increasing the acromion-humeral distance.
520			_aLEVEL OF EVIDENCE: Basic Science Study; Biomechanics. Copyright (c) 2021. Published by Elsevier Inc.
520			_aMETHODS: This controlled laboratory study tested eight fresh-frozen cadaveric shoulders using a custom test frame. Balanced loading configuration centered the humeral head on the glenoid, and unbalanced load created a force pulling the head towards the acromion. Experimental conditions included the intact rotator cuff, irreparable supraspinatus tear (ISST), and dermal allograft SCR. A digital sensor measured glenohumeral and subacromial contact pressure maps, and a microscribe measured acromion-humeral distance.
520			_aPURPOSE: To investigate the effect of a dermal allograft SCR on kinematics and joint pressure biomechanics immediately after simulated superior irreparable rotator cuff tear.
520			_aRESULTS: Glenohumeral contact pressure of ISST was 175% (295+/-44 kPa; P=0.018) of the intact rotator cuff value (169+/-10 kPa) at 0 in the balanced condition and 176% (P=0.048) of intact at 30. SCR decreased glenohumeral contact pressure to 110% (185+/-27 kPa; P=0.044) of intact at 0 and to 95% (P=0.034) at 30. Unbalanced ISST contact pressure was 146% (365+/-23 kPa; P=0.009) of intact (250+/-24 kPa) at 0 and 122% (P=0.045) at 60. SCR decreased contact pressures to 110% (274+/-21 kPa; P=0.039) of intact at 0 and to 89% (P=0.003) at 60. ISST increased superior migration of the humeral head, decreasing the acromion-humeral distance by 3.0+/-0.6 mm (P=0.006) in the unbalanced condition at 0. SCR increased the acromion-humeral distance to a value similar to that of the intact cuff (P=0.003). SCR significantly lowered subacromial pressures in the unbalanced condition.
546			_aEnglish
650			_a*Rotator Cuff Injuries
650			_a*Shoulder Joint
650			_aAllografts
650			_aBiomechanical Phenomena
650			_aCadaver
650			_aHumans
650			_aHumeral Head
650			_aRange of Motion, Articular
650			_aRotator Cuff Injuries/su [Surgery]
650			_aShoulder Joint/su [Surgery]
651			_aMedStar Union Memorial Hospital
656			_aCurtis National Hand Center
656			_aOrthopaedic Surgery
657			_aJournal Article
700			_aAbbasi, Pooyan
700			_aLobao, Mario H
700			_aMelvani, Roshan
700			_aMurthi, Anand M
700			_aParks, Breny G
790			_aAbbasi P, Lobao MH, Melvani RT, Murthi AM, Parks BG
856			_uhttps://dx.doi.org/10.1016/j.jse.2020.11.024 _zhttps://dx.doi.org/10.1016/j.jse.2020.11.024
942			_cART _dArticle
999			_c6040 _d6040