Characteristics of unsatisfactory shoulder arthroplasties

Origin of Propionibacterium in Surgical Wounds and Evidence-Based Approach for Culturing Propionibacterium from Surgical Sites

“…P ropionibacterium species are often grown on culture of specimens obtained at the time of orthopaedic revision surgery. The pathogenicity of this organism has been demonstrated for patients who have undergone shoulder implant surgery [1][2][3][4][5][6][7][8][9][10][11][12][13][14] , hip or knee arthroplasty [15][16][17][18][19][20][21][22] , or spine surgery [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] . While many cases of Propionibacterium infections are attributed to Propionibacterium acnes, other species of Propionibacterium have been recovered from revision surgical sites 38 .…”

Assessment of radiolucent lines in cemented shoulder hemi-arthroplasties: study of concordance and reproducibility

“…The humeral component in total shoulder arthroplasty is commonly considered to have a low risk of loosening; nevertheless, Sanchez-Sotelo et al reported the presence of radiolucent lines in the humeral component in 16 of 43 shoulder arthroplasties studied, and 2% of the implants were considered to be at risk of loosening [18]. Furthermore, Hasan et al found that, among the different causes of unsatisfactory shoulder arthroplasties, humeral loosening was present in 12% [7]. In total shoulder replacements, wear debris associated with the glenoid component can lead to aseptic loosening of the humeral component similar to the experience in total hip and knee arthroplasty [11].…”

“…Although the humeral component does not appear to be a major cause of failure in shoulder replacement, [15,18] Hasan et al have pointed out that humeral loosening was present in 12 % of unsatisfactory shoulder replacements [7]. The purpose of our study was to determine the concordance and reproducibility of assessments of radiolucent lines in cemented humeral components as well as to analyse the accuracy of assessments of the progression of these lines over time.…”

“…Total shoulder arthroplasty has proven to be effective in the treatment of glenohumeral arthritis, and, although in some studies the results of total shoulder replacement are reported to be better than those of hemi-arthroplasty, glenoid component loosening remains the major concern when total shoulder replacement is analysed over time, and it has been subjected to widespread study [3,4,7,17,21,23].…”

Morphometric Analysis and Surgical Anatomy of Proximal Humerus

“…Variations in humeral version and dimensions should be considered at the time of actual replacement surgery. Most of the shoulder surgeons accept 25 degree to 35 degree of humeral head retroversion as a practical reference figure [7] Various biomechanical studies have shown that even a small variation in prosthetic geometry deviates from the normal anatomy, there will be suboptimal functional outcome [4,8]. The current study was aimed to obtain morphometric data of proximal Humerus in the Indian population.…”