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Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_10 | Pages 64 - 64
1 Oct 2022
Menon A Agashe V Rodrigues C Soman R Sunavala A Shetty A
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Aim

Melioidosis is a significant public health problem in endemic regions such as India. Lack of awareness, predominant empiric antibiotic use reducing culture yields, morphotypic variability of cultures and frequent misidentification by automated blood culture systems, pose myriad challenges in diagnosis and treatment. Through this series, we present our experience of Hematogenous Osteomyelitis with Burkholderia pseudomallei.

Method

This was a single centre, retrospective, observational study performed at a tertiary case hospital in Mumbai, India from June 2011 to June 2021.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_14 | Pages 44 - 44
1 Dec 2019
Menon A Bhadiyadra R Kuntwad V Soman R Rodrigues C Shetty A Agashe V
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Aim

Management of infection after osteosynthesis (IAO) poses a significant challenge in the setting of multidrug resistant organisms (MDRo). We have analysed whether IAO with MDRo has an adverse outcome.

Method

We have retrospectively analysed patients with IAO from January 2001 to November 2016 with a minimum follow up of 12 months after the discontinuation of antibiotics.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_22 | Pages 52 - 52
1 Dec 2017
Sousa A Gouveia P Coutinho L Rodrigues C Fonte H Cipriano A Santos AC Abreu M Amorim I Sousa R
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Aim

Autologous-labeled leukocytes combined with sulfur colloid bone marrow scan is the current imaging modality of choice for diagnosing prosthetic joint infection (PJI). Although this technique is reliable, in-vitro leukocyte labeling raises technical difficulties that limit its widespread use and sulfur colloid is increasingly difficult to obtain. Therefore, valid alternatives are needed. The purpose of our study was to determine the clinical value of 99mTc-sulesomab combined with 99mTc-colloidal rhenium sulphide (nanocolloid) bone marrow imaging in the diagnosis of infection in painful total joint arthroplasties.

Materials and methods

A retrospective study was conducted on a cohort of 53 patients with painful hip or knee prostheses that underwent 99mTc-sulesomab and 99mTc-nanocolloids sequentially, between January 2008 and December 2016. The combined images were interpreted as positive for infection when there was activity on the sulesomab scan without corresponding activity on the bone marrow scan. The final diagnosis was made with microbiological findings or by clinical follow up of at least 12 months.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_16 | Pages 27 - 27
1 Dec 2015
Menon A Agashe V Gundavda M Patil H Soman R Rodrigues C Deshpande R
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Non-tuberculous mycobacteria (NTM)—previously considered as saprophytic organisms—are now increasingly recognized as human pathogens [1, 2]. Although humans are routinely exposed to NTM, clinical infection rates are low; further, these infections typically occur in immunocompromised patients. However, an increasing incidence of NTM infections in immunocompetent hosts—caused by direct inoculation, such as contamination from surgical procedures or penetrating trauma—has been noted [1]. Clinically and histopathologically, musculoskeletal infections caused by NTM resemble those caused by Mycobacteria tuberculosis; however, they are largely resistant to routine anti-tuberculosis agents [3,4]. Therefore, NTM infections can either be missed or even regarded as drug resistant tuberculosis, causing a significant delay in diagnosis. Here, we present the features and outcomes of 6 immunocompetent patients with musculoskeletal infections caused by NTM.

We retrospectively analyzed the outcomes of musculoskeletal infections caused by NTM in 6 healthy, immunocompetent hosts admitted between 2004 and 2015. The etiology was traced, and available culture reports were reviewed.

NTM inoculation was traced to open fractures in 2 patients (1, patella; 1, humerus), intra-articular injection in 2 patients (1, hip; 1, shoulder), local steroid injection to the calcaneum in 1 patient, and an arthroscopic procedure in the knee joint in 1 patient. Histopathological analyses revealed chronic granulomatous inflammation, with positive NTM cultures. Following radical debridement and targeted antibiotic therapy for NTM, all 6 patients showed complete resolution over a follow-up period of 8 months to 10 years, with no recurrence.

NTM are an uncommon pathogen in immunocompetent patients. In patients with chronic granulomatous infection not responding to standard anti-tuberculous treatment and with a history suggestive of inoculation—namely open fractures, surgical intervention, or injection—the possibility of NTM infection should be considered. Appropriate antibiotic therapy based on drug susceptibility reports gives good outcomes. While the hallmark of M. tuberculosis infections is chronic granulomatous inflammation, not every case of mycobacterial granulomatous inflammation is due to M. tuberculosis.