000			03121nam a22004817a 4500
008			201231s20212021 xxu||||| |||| 00| 0 eng d
022			_a1067-151X
024			_a10.5435/JAAOS-D-20-00671 [doi]
040			_aOvid MEDLINE(R)
099			_a33264136
245			_aOffset in Reverse Shoulder Arthroplasty: Where, When, and How Much.
251			_aJournal of the American Academy of Orthopaedic Surgeons. 29(3):89-99, 2021 Feb 01.
252			_aJ Am Acad Orthop Surg. 29(3):89-99, 2021 Feb 01.
252			_zJ Am Acad Orthop Surg. 2020 Dec 01
253			_aThe Journal of the American Academy of Orthopaedic Surgeons
260			_c2021
260			_fFY2021
265			_saheadofprint
265			_sppublish
266			_d2020-12-31
268			_aJournal of the American Academy of Orthopaedic Surgeons. 2020 Dec 01
501			_aAvailable online from MWHC library: Oct 1993 - present, Available in print through MWHC library: 1999 - present
520			_aSince the advent of Paul Grammont medialized reverse shoulder prosthesis in the 1980s, shoulder surgeons have had a reliable option for treating glenohumeral joint disease in the rotator cuff-deficient shoulder. However, the prosthesis is not without complications, including scapular notching, instability, and limited rotational motion. Implants have been modified from the original design in an effort to reduce the risk of these complications. Increasing the offset, or lateralization, of the glenosphere may reduce the rate of scapular notching, reduce impingement, increase stability, and improve rotational motion. However, a more lateralized glenosphere could lead to baseplate loosening, decreased deltoid efficiency, and increased risk of acromial fracture. Increasing the offset on the humeral side, rather than the glenosphere side, may be able to reduce the rate of scapular notching and improve rotational motion without an increased risk of baseplate loosening. Humeral lateralization also improves tension of the rotator cuff and maintains good deltoid efficiency. However, humeral lateralization provides little stability benefit, and acromial fracture remains a risk. Ultimately, the surgeon must be familiar with the implants he or she is using and the options for both glenosphere and humeral lateralization to ensure that risks and benefits can be weighed for each patient.
546			_aEnglish
650			_a*Arthroplasty, Replacement, Shoulder
650			_a*Joint Prosthesis
650			_a*Shoulder Joint
650			_aArthroplasty, Replacement, Shoulder/ae [Adverse Effects]
650			_aFemale
650			_aHumans
650			_aMale
650			_aProsthesis Design
650			_aRange of Motion, Articular
650			_aScapula/su [Surgery]
650			_aShoulder Joint/su [Surgery]
651			_aMedStar Union Memorial Hospital
657			_aJournal Article
700			_aMurthi, Anand M
700			_aWright, Melissa A
790			_aMurthi AM, Wright MA
856			_uhttps://dx.doi.org/10.5435/JAAOS-D-20-00671 _zhttps://dx.doi.org/10.5435/JAAOS-D-20-00671
942			_cART _dArticle
999			_c5959 _d5959