Abstract
Objective
The present study aimed to identify bacterial agents in shoulder surgery specimens from patients with no history of previous shoulder infection or surgery.
Methods
Tendon, bursa, and bone specimens were collected during surgery, stored in sterile dry bottles, and sent to a hospital-associated laboratory for culture growth analysis in media for aerobic and anaerobic agents. Findings from 141 samples from 47 shoulders were analyzed.
Results
The cultures were negative in 46 cases (97.8%) and in 140 samples (99.2%). The culture was positive in a single patient, with growth of Staphylococcus hominis from one of three specimens collected.
Conclusions
The rates of bacterial growth were not consistent with the international literature, indicating the low effectiveness of laboratory methods used in Brazil.
Keywords
cutibacterium acnes; gram-positive bacterial infections; shoulder
Resumo
Objetivo
Identificar agentes bacterianos em amostras de cirurgias do ombro de pacientes sem histórico de infecção e de cirurgias prévias no ombro.
Métodos
Amostras de tendão, bursa e osso foram coletadas no intraoperatório, armazenadas em frascos estéreis a seco e enviadas para análise de crescimento de cultura em meios para agentes aeróbios e anaeróbios no laboratório credenciado ao hospital. Foram analisados os resultados de 141 amostras de 47 ombros.
Resultados
Obtivemos resultados de culturas negativas em 46 casos (97,8%) e em 140 amostras (99,2%). Apenas um paciente apresentou resultado positivo, com crescimento bacteriano do Staphylococcus hominis em uma das três amostras coletadas.
Conclusões
Não evidenciamos taxas de crescimento bacteriano condizentes com a literatura internacional, alertando para a baixa eficácia dos métodos laboratoriais utilizados no nosso país.
Palavras-chave
cutibacterium acnes; infecções por bactérias gram-positivas; ombro
Introduction
Infection is one of the most feared complications related to orthopedic surgeries, as it increases morbidity and treatment costs.11 Gomes LSM. Early Diagnosis of Periprosthetic Joint Infection of the Hip-Current Status, Advances, and Perspectives. Rev Bras Ortop (Sao Paulo) 2019; 54 (04) 368-376
2 Ahsan ZS, Somerson JS, Matsen 3rd FA. Characterizing the Propionibacterium Load in Revision Shoulder Arthroplasty: A Study of 137 Culture-Positive Cases. J Bone Joint Surg Am 2017; 99 (02) 150-154
3 Qiu B, Al K, Pena-Diaz AM. et al. Cutibacterium acnes and the shoulder microbiome. J Shoulder Elbow Surg 2018; 27 (10) 1734-1739
4 Torrens C, Marí R, Alier A, Puig L, Santana F, Corvec S. Cutibacterium acnes in primary reverse shoulder arthroplasty: from skin to deep layers. J Shoulder Elbow Surg 2019; 28 (05) 839-846-55 Bonnevialle N, Dauzères F, Toulemonde J, Elia F, Laffosse JM, Mansat P. Periprosthetic shoulder infection: an overview. EFORT Open Rev 2017; 2 (04) 104-109 The rates of shoulder arthroplasty-associated infection are up to 9.5% in the Brazilian literature66 Nagaya LH, Salles MJC, Takikawa LSC. et al. Infections after shoulder arthroplasty are correlated with higher anesthetic risk score: a case-control study in Brazil. Braz J Infect Dis 2017; 21 (06) 613-619 and 15% in the international literature.77 Shi LL, Von Kuedell AG, Higgins Dl. Treatment of shoulder infections after arthroscopy, open surgery, or arthroplasty. Curr Orthop Pract 2012; 23 (01) 23-28 This rate can reach 3.4% in arthroscopies and up to 1.9% in open surgeries for rotator cuff repair or osteosynthesis.77 Shi LL, Von Kuedell AG, Higgins Dl. Treatment of shoulder infections after arthroscopy, open surgery, or arthroplasty. Curr Orthop Pract 2012; 23 (01) 23-28 Some authors discuss the meaning of bacterial growth and its real pathophysiological role in prosthetic components loosening, joint stiffness, pseudoarthrosis, instability, and residual pain in operated shoulders.88 Padegimas EM, Lawrence C, Narzikul AC. et al. Future surgery after revision shoulder arthroplasty: the impact of unexpected positive cultures. J Shoulder Elbow Surg 2017; 26 (06) 975-981
9 Howlin RP, Winnard C, Angus EM. et al. Prevention of Propionibacterium acnes biofilm formation in prosthetic infections in vitro. J Shoulder Elbow Surg 2017; 26 (04) 553-563-1010 Lutz MF, Berthelot P, Fresard A. et al. Arthroplastic and osteosynthetic infections due to Propionibacterium acnes: a retrospective study of 52 cases, 1995-2002. Eur J Clin Microbiol Infect Dis 2005; 24 (11) 739-744
Cutibacterium acnes, a gram-positive, lipophilic, nonsporulated, slow-growing anaerobic bacterial organism,33 Qiu B, Al K, Pena-Diaz AM. et al. Cutibacterium acnes and the shoulder microbiome. J Shoulder Elbow Surg 2018; 27 (10) 1734-1739,99 Howlin RP, Winnard C, Angus EM. et al. Prevention of Propionibacterium acnes biofilm formation in prosthetic infections in vitro. J Shoulder Elbow Surg 2017; 26 (04) 553-563,1111 Koh CK, Marsh JP, Drinković D, Walker CG, Poon PC. Propionibacterium acnes in primary shoulder arthroplasty: rates of colonization, patient risk factors, and efficacy of perioperative prophylaxis. J Shoulder Elbow Surg 2016; 25 (05) 846-852 has a special role in this scenario. It has been isolated in up to 41.8% of primary shoulder surgeries in patients with no previous clinical signs of infection.44 Torrens C, Marí R, Alier A, Puig L, Santana F, Corvec S. Cutibacterium acnes in primary reverse shoulder arthroplasty: from skin to deep layers. J Shoulder Elbow Surg 2019; 28 (05) 839-846,88 Padegimas EM, Lawrence C, Narzikul AC. et al. Future surgery after revision shoulder arthroplasty: the impact of unexpected positive cultures. J Shoulder Elbow Surg 2017; 26 (06) 975-981,1212 Hudek R, Sommer F, Kerwat M, Abdelkawi AF, Loos F, Gohlke F. Propionibacterium acnes in shoulder surgery: true infection, contamination, or commensal of the deep tissue?. J Shoulder Elbow Surg 2014; 23 (12) 1763-1771
13 Clark JJC, Abildgaard JT, Backes J, Hawkins RJ. Preventing infection in shoulder surgery. J Shoulder Elbow Surg 2018; 27 (07) 1333-1341-1414 Levy O, Iyer S, Atoun E. et al. Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?. J Shoulder Elbow Surg 2013; 22 (04) 505-511
This organism is part of the commensal flora of the skin, colonizing hair follicles and sebaceous glands; it is traditionally considered nonpathogenic.1010 Lutz MF, Berthelot P, Fresard A. et al. Arthroplastic and osteosynthetic infections due to Propionibacterium acnes: a retrospective study of 52 cases, 1995-2002. Eur J Clin Microbiol Infect Dis 2005; 24 (11) 739-744 However, C. acnes has been demonstrated in a series of infections, mainly related to bacterial adhesion in orthopedic implants and biofilm formation.1515 Achermann Y, Goldstein EJ, Coenye T, Shirtliff ME. Propionibacterium acnes: from commensal to opportunistic biofilm-associated implant pathogen. Clin Microbiol Rev 2014; 27 (03) 419-440 Shoulder surgery involves a great risk due to the proximity of the surgical site to the axilla, with an abundance of hair follicles and sebaceous glands.77 Shi LL, Von Kuedell AG, Higgins Dl. Treatment of shoulder infections after arthroscopy, open surgery, or arthroplasty. Curr Orthop Pract 2012; 23 (01) 23-28 This is why shoulder colonization is greater when compared with other joints, such as the knee and hip. For the same reason, the incidence of C. acnes infections is higher in males.1414 Levy O, Iyer S, Atoun E. et al. Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?. J Shoulder Elbow Surg 2013; 22 (04) 505-511
The most common C. acnes contamination route is the migration of organisms colonizing the skin adjacent to the surgical site to deeper tissues after incision. Other potential contamination occurs due to the manipulation of the surgical site and surgical materials by the hospital team, in addition to the hematogenous spread of the organism adhered to previous implants. For these cases, the most important method for bacteriological diagnosis is culture from deep specimens.1515 Achermann Y, Goldstein EJ, Coenye T, Shirtliff ME. Propionibacterium acnes: from commensal to opportunistic biofilm-associated implant pathogen. Clin Microbiol Rev 2014; 27 (03) 419-440,1616 Boisrenoult P. Cutibacterium acnes prosthetic joint infection: Diagnosis and treatment. Orthop Traumatol Surg Res 2018; 104 (1S): S19-S24
The present study aimed to identify bacterial growth in arthroscopies and open surgeries in shoulders not previously operated on.
Casuistry and Methods
This is a prospective, cross-sectional, sequential, observational study evaluating culture findings from specimens obtained during shoulder surgery and surveying clinical data from patients, complemented by a statistical analysis.
Culture findings of 64 shoulders from 63 patients who underwent primary shoulder surgery between April 2019 and May 2020 were analyzed. The mean age of the patients was 59 years old, ranging from 18 to 85 years old. Thirty-three (52.4%) patients were males and 30 (47.6%) were females. Shoulder arthroscopy was performed in 46 (71.9%) patients. Among those submitted to an open procedure, 6 (9.4%) underwent osteosynthesis, 6 (9.4%) underwent surgery for instability, 4 (6.2%) underwent shoulder arthroplasty, and 2 (3.1%) underwent rotator cuff repair (►Table 1).
Study participants according to length of clinical follow-up, surgical technique, diagnosis, gender, age, and bacterial growth in cultures
The inclusion criteria were patients > 18 years old, with no previous history of shoulder infection and who underwent primary shoulder surgery. Patients with a history of previous shoulder surgery and/or infection were excluded.
For open procedures, skin preparation followed the pattern used in patients undergoing osteosynthesis or arthroplasty: careful degermation of the shoulder, arm, forearm, hand, and axilla with 10% povidone-iodine (PVP-I) solution, preparation of the surgical site with a 10% PVP-I alcoholic solution in 2 layers, and surgical site enveloping with an incisional antimicrobial field of hypoallergenic acrylic adhesive impregnated with iodine (Ioban).
For patients undergoing arthroscopic surgery, the preparation followed another protocol, consisting of careful degermation of the shoulder, arm, forearm, hand, and axilla with a 4% chlorhexidine gluconate solution and preparation of the surgical site with a 2% alcoholic chlorhexidine solution in 2 layers, with no enveloping.
All patients receive an infusion of cefuroxime, 1.5 g, during anesthetic induction and for 24 hours after the procedure.
Intraoperatively, 0.5-cm3 specimens of bone (humerus, acromion, or clavicle), tendon (long head of the biceps tendon or joint tendon), and subacromial pouch were sent for laboratory analysis of bacterial proliferation in culture media. These specimens were collected in dry sterile bottles, with no addition of another substrate or contact with the surgical field, gloves, aprons, or any other equipment. In < 1 hour, the bottles were taken by the hospital support team to a hospital-associated laboratory.
At the laboratory, the samples were manipulated in a microbiological safety cabinet. Bone fragments were inoculated only in thioglycolate medium (►Figure 1). The medium was incubated for up to 72 hours at 36°C ± 1°C. In case of turbidity, the medium was subcultured in 5% sheep blood agar (►Figure 2) and incubated for up to 72 hours in a 5% CO2 atmosphere at 36°C ± 1°C. Non-bone tissues were homogenized aseptically, using a sterile disposable scalpel, and ∼ 0.5 mL of sterile 0.9% saline solution. For aerobic culture, aliquots of ∼ 0.05 mL of the homogenate were placed in thioglycolate medium and supplemented chocolate agar (►Figure 2). The thioglycolate medium was incubated for up to 72 hours at 36°C ± 1°C. The plates were incubated for up to 72 hours in a 5% CO2 atmosphere at 36°C ± 1°C and inspected daily for the presence of colonies. For anaerobic culture, the homogenate was placed on Brucella agar with equine blood and supplemented with hemin and NAD, in addition to the thioglycolate medium. The plates and the tubes were incubated for up to 7 days in anaerobiosis.
Colonies present in solid media were identified by mass spectrometry. In cases of absence of colonies on the plates and turbidity of the thioglycolate medium in aerobic culture, the samples were subcultured on sheep blood agar and incubated for up to 72 hours in a 5% CO2 atmosphere at 36°C ± 1°C; the plates were inspected daily for the presence of colonies. For the anaerobic routine, in the absence of colonies on the plates and thioglycolate medium turbidity, the broth was subcultured in supplemented blood agar and incubated in anaerobiosis for 72 hours. Colonies obtained on a solid medium were identified by mass spectrometry.
In total, 189 tissue fragments from the 63 operated shoulders were collected and sent to culture. Sixteen individuals were excluded: 15 had no culture results, as samples were lost, and 1 patient did not meet the inclusion criteria (he had previously undergone a shoulder arthroplasty). The final sample consisted of 47 shoulders (141 specimens).
The present work was approved by the Research Ethics Committee (CAAE: 34265620.5.0000.0070). All patients signed an informed consent form to participate in the study; there are no conflict of interests.
Results
Of the 47 shoulders included in the study, totaling 141 tissue fragments for analysis, negative cultures were found in 46 cases (97.8%) and in 140 samples (99.2%).
Only one patient had a positive result, with bacterial growth of Staphylococcus hominis in one of the three samples collected. This patient, a male, underwent open surgery for anterior shoulder instability. Clinical data and supplementary tests (serial radiographs, complete blood count, C-reactive protein, and erythrocyte sedimentation rate) revealed a diagnosis of an infectious clinical condition of the shoulder. At the end of the present study, the patient presented with 12 months of postoperative follow-up with no loosening of the synthesis material (cannulated screws with washers), increased inflammatory parameters or complaints of residual pain, functional limitation, or instability recurrence.
During follow-up, no other patient presented any clinical complaint suggestive of infection (pain, hyperemia, edema, heat, or secretion drainage).
►Table 1 shows the total study population. ►Table 2 shows the findings of the study.
Results of intraoperative samples cultures. The lines indicate the results of the samples collected from each patient (positive or negative); the columns indicate the surgeries performed (open or closed procedures)
Discussion
We emphasize the importance of our study in initiating the scientific approach to C. acnes in the Brazilian literature. This organism is a bacterial agent attributed to the high incidence of postsurgical infection of the shoulder. The samples were sent from surgery to a specialized, hospital-associated laboratory, which uses a protocol to investigate aerobic and anaerobic bacteria; this is one of the largest, most important, reputable laboratory centers in our country.
Hudek et al.1212 Hudek R, Sommer F, Kerwat M, Abdelkawi AF, Loos F, Gohlke F. Propionibacterium acnes in shoulder surgery: true infection, contamination, or commensal of the deep tissue?. J Shoulder Elbow Surg 2014; 23 (12) 1763-1771 demonstrated a 36.4% incidence of C. acnes-positive postoperative samples from patients with no previous history of infection who underwent primary open surgery for rotator cuff repair, subacromial decompression, arthroplasty, and anterior shoulder instability correction. These authors found an even higher rate for primary shoulder arthroplasties, at 41.8%.1414 Levy O, Iyer S, Atoun E. et al. Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?. J Shoulder Elbow Surg 2013; 22 (04) 505-511 Our findings were not consistent with their study. Methodologically, these studies followed similar criteria for patient selection. Antisepsis and asepsis were also similar, except for the use of an iodinated solution for degermation instead of chlorhexidine in our study. Regarding specimen selection,1212 Hudek R, Sommer F, Kerwat M, Abdelkawi AF, Loos F, Gohlke F. Propionibacterium acnes in shoulder surgery: true infection, contamination, or commensal of the deep tissue?. J Shoulder Elbow Surg 2014; 23 (12) 1763-1771 the study base was expanded, collecting specimens from superficial sites, while other authors1414 Levy O, Iyer S, Atoun E. et al. Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?. J Shoulder Elbow Surg 2013; 22 (04) 505-511 included samples from deep tissues alone. Another difference was the use of vials containing thioglycolate solution (a medium suitable for anaerobic agent culture) for immediate specimen storage by Hudek et al.,1212 Hudek R, Sommer F, Kerwat M, Abdelkawi AF, Loos F, Gohlke F. Propionibacterium acnes in shoulder surgery: true infection, contamination, or commensal of the deep tissue?. J Shoulder Elbow Surg 2014; 23 (12) 1763-1771 while other authors1414 Levy O, Iyer S, Atoun E. et al. Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?. J Shoulder Elbow Surg 2013; 22 (04) 505-511 immediately placed the specimens in dry vials. Both the storage and the material collection methodology of our study followed the model used by Levy et al.1414 Levy O, Iyer S, Atoun E. et al. Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?. J Shoulder Elbow Surg 2013; 22 (04) 505-511
An important factor to consider for C. acnes detection is the incubation time. The literature shows an average of 6 days for growth, ranging from 2 to 15 days.1616 Boisrenoult P. Cutibacterium acnes prosthetic joint infection: Diagnosis and treatment. Orthop Traumatol Surg Res 2018; 104 (1S): S19-S24 At the laboratory from our study, the standard culture time for anaerobic agents is up to 5 days. This period, lower than the one required by C. acnes,11 Gomes LSM. Early Diagnosis of Periprosthetic Joint Infection of the Hip-Current Status, Advances, and Perspectives. Rev Bras Ortop (Sao Paulo) 2019; 54 (04) 368-376,1717 Elston MJ, Dupaix JP, Opanova MI, Atkinson RE. Cutibacterium acnes (formerly Proprionibacterium acnes) and Shoulder Surgery. Hawaii J Health Soc Welf 2019; 78 (11, Suppl 2) 3-5 allows only the growth of a smaller series of organisms. The unique finding of S. hominis demonstrates the inefficiency of the 7-day incubation period for extensive research and suggests the underdiagnosis of deep tissue contamination by C. acnes, since coagulase-negative staphylococci are the most associated agents.1616 Boisrenoult P. Cutibacterium acnes prosthetic joint infection: Diagnosis and treatment. Orthop Traumatol Surg Res 2018; 104 (1S): S19-S24 We believe that the research protocol is inefficient for the correct analysis of bacterial agents, mainly C. acnes.
The storage medium used for the specimens from collection to laboratory processing also deserves attention, mainly for the research of anaerobic agents. Immediate inoculation in a nutrient medium and the prevention of contact with ambient air, with vial sealing, can preserve survival and favor anaerobic bacterial growth.
The literature shows lower rates of shoulder infection after arthroscopies compared with open procedures;77 Shi LL, Von Kuedell AG, Higgins Dl. Treatment of shoulder infections after arthroscopy, open surgery, or arthroplasty. Curr Orthop Pract 2012; 23 (01) 23-28 this occurs because arthroscopies have more limited incisions and less tissue manipulation, in addition to the intense rising process of wounds with saline solution virtually during the whole surgery. In our study, most surgical procedures were arthroscopies (71.9%), but this fact, alone, does not justify the lack of bacterial growth. For open surgeries, the most used surgical route in our study was the deltopectoral approach, which is associated with a two-fold lower rate of C. acnes growth compared with the anterolateral approach to the shoulder, since it is assumed that colonization is greater next to the acromion.1212 Hudek R, Sommer F, Kerwat M, Abdelkawi AF, Loos F, Gohlke F. Propionibacterium acnes in shoulder surgery: true infection, contamination, or commensal of the deep tissue?. J Shoulder Elbow Surg 2014; 23 (12) 1763-1771 We emphasize that, although these considerations are important for the analysis of the lower incidence of C. acnes in comparison with that reported in the literature, there was no statistical significance between open and closed surgery for culture positivity (p= 0.213).
The typically insidious, frustrating clinical picture of C. acnes infections does not indicate a potential long-term postoperative complication, although it is known that its significant housing adjacent to the surgical site increases the risk in shoulder surgeries.1616 Boisrenoult P. Cutibacterium acnes prosthetic joint infection: Diagnosis and treatment. Orthop Traumatol Surg Res 2018; 104 (1S): S19-S24 In a review of 75 patients who underwent revision arthroplasty of the shoulder due to material failure, Topolski et al.1818 Topolski MS, Chin PY, Sperling JW, Cofield RH. Revision shoulder arthroplasty with positive intraoperative cultures: the value of preoperative studies and intraoperative histology. J Shoulder Elbow Surg 2006; 15 (04) 402-406 showed 60% growth of C. acnes. This highlights the importance in identifying and studying this organism to improve antiseptic and aseptic techniques for the therapeutic success of shoulder surgery.
Regarding the only case with bacterial growth, we emphasize that it was not consistent with a shoulder infection since no clinical, laboratory or radiographic criteria were met; as such, the diagnosis of specimen contamination is evident.1919 Assunção JH, Noffs GG, Malavolta EA, Gracitelli MEC, Lima ALM, Ferreira Neto AA. Septic arthritis of the shoulder and elbow: one decade of epidemiological analysis at a tertiary referral hospital. Rev Bras Ortop 2018; 53 (06) 707-713
The greatest importance of the present study is to alert for the low effectiveness of the methods currently used in Brazil for bacterial identification, even in the largest laboratories.
Further studies, following well-defined antisepsis and asepsis standards, but with a new laboratory methodology, standardizing the selection of storage medium and proper culture for anaerobes, with longer incubation time than that conventionally employed for anaerobic agents, in addition to evaluation and comparison with most recent microbiological research methodologies (mass spectrometry and genetic sequencing) are essential for a more reliable analysis of the real activity and importance of C. acnes in our environment. To contemplate all these factors, our group has a new study in progress, using tubes with thioglycolate broth for immediate specimen storage after surgical collection, a minimum incubation time of 14 days, and routine mass spectrometry for positive cultures.
Conclusion
We did not evidence bacterial growth rates consistent with the international literature in tissue samples from shoulders undergoing primary surgery, which were collected and cultured in a laboratory considered a reference in our country, following the usual methods.
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Financial SupportThere was no financial support from public, commercial, or non-profit sources.
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The present study was performed at Hospital Alemão Oswaldo Cruz, São Paulo, SP, Brazil.
References
-
1Gomes LSM. Early Diagnosis of Periprosthetic Joint Infection of the Hip-Current Status, Advances, and Perspectives. Rev Bras Ortop (Sao Paulo) 2019; 54 (04) 368-376
-
2Ahsan ZS, Somerson JS, Matsen 3rd FA. Characterizing the Propionibacterium Load in Revision Shoulder Arthroplasty: A Study of 137 Culture-Positive Cases. J Bone Joint Surg Am 2017; 99 (02) 150-154
-
3Qiu B, Al K, Pena-Diaz AM. et al. Cutibacterium acnes and the shoulder microbiome. J Shoulder Elbow Surg 2018; 27 (10) 1734-1739
-
4Torrens C, Marí R, Alier A, Puig L, Santana F, Corvec S. Cutibacterium acnes in primary reverse shoulder arthroplasty: from skin to deep layers. J Shoulder Elbow Surg 2019; 28 (05) 839-846
-
5Bonnevialle N, Dauzères F, Toulemonde J, Elia F, Laffosse JM, Mansat P. Periprosthetic shoulder infection: an overview. EFORT Open Rev 2017; 2 (04) 104-109
-
6Nagaya LH, Salles MJC, Takikawa LSC. et al. Infections after shoulder arthroplasty are correlated with higher anesthetic risk score: a case-control study in Brazil. Braz J Infect Dis 2017; 21 (06) 613-619
-
7Shi LL, Von Kuedell AG, Higgins Dl. Treatment of shoulder infections after arthroscopy, open surgery, or arthroplasty. Curr Orthop Pract 2012; 23 (01) 23-28
-
8Padegimas EM, Lawrence C, Narzikul AC. et al. Future surgery after revision shoulder arthroplasty: the impact of unexpected positive cultures. J Shoulder Elbow Surg 2017; 26 (06) 975-981
-
9Howlin RP, Winnard C, Angus EM. et al. Prevention of Propionibacterium acnes biofilm formation in prosthetic infections in vitro. J Shoulder Elbow Surg 2017; 26 (04) 553-563
-
10Lutz MF, Berthelot P, Fresard A. et al. Arthroplastic and osteosynthetic infections due to Propionibacterium acnes: a retrospective study of 52 cases, 1995-2002. Eur J Clin Microbiol Infect Dis 2005; 24 (11) 739-744
-
11Koh CK, Marsh JP, Drinković D, Walker CG, Poon PC. Propionibacterium acnes in primary shoulder arthroplasty: rates of colonization, patient risk factors, and efficacy of perioperative prophylaxis. J Shoulder Elbow Surg 2016; 25 (05) 846-852
-
12Hudek R, Sommer F, Kerwat M, Abdelkawi AF, Loos F, Gohlke F. Propionibacterium acnes in shoulder surgery: true infection, contamination, or commensal of the deep tissue?. J Shoulder Elbow Surg 2014; 23 (12) 1763-1771
-
13Clark JJC, Abildgaard JT, Backes J, Hawkins RJ. Preventing infection in shoulder surgery. J Shoulder Elbow Surg 2018; 27 (07) 1333-1341
-
14Levy O, Iyer S, Atoun E. et al. Propionibacterium acnes: an underestimated etiology in the pathogenesis of osteoarthritis?. J Shoulder Elbow Surg 2013; 22 (04) 505-511
-
15Achermann Y, Goldstein EJ, Coenye T, Shirtliff ME. Propionibacterium acnes: from commensal to opportunistic biofilm-associated implant pathogen. Clin Microbiol Rev 2014; 27 (03) 419-440
-
16Boisrenoult P. Cutibacterium acnes prosthetic joint infection: Diagnosis and treatment. Orthop Traumatol Surg Res 2018; 104 (1S): S19-S24
-
17Elston MJ, Dupaix JP, Opanova MI, Atkinson RE. Cutibacterium acnes (formerly Proprionibacterium acnes) and Shoulder Surgery. Hawaii J Health Soc Welf 2019; 78 (11, Suppl 2) 3-5
-
18Topolski MS, Chin PY, Sperling JW, Cofield RH. Revision shoulder arthroplasty with positive intraoperative cultures: the value of preoperative studies and intraoperative histology. J Shoulder Elbow Surg 2006; 15 (04) 402-406
-
19Assunção JH, Noffs GG, Malavolta EA, Gracitelli MEC, Lima ALM, Ferreira Neto AA. Septic arthritis of the shoulder and elbow: one decade of epidemiological analysis at a tertiary referral hospital. Rev Bras Ortop 2018; 53 (06) 707-713
Publication Dates
-
Publication in this collection
02 Sept 2022 -
Date of issue
Jul-Aug 2022
History
-
Received
18 Jan 2021 -
Accepted
12 Apr 2021 -
Published
25 Oct 2021