BACKGROUND: To evaluate the prevalence of osteomyelitis in different areas of the foot and the possible correlation between localization and outcome of major amputation. METHODS: From January 2008 to December 2010, a total of 350 diabetic patients were admitted to our diabetic foot unit for the surgical treatment of osteomyelitis. Osteomyelitis was diagnosed when both the probe-to-bone maneuver and plain radiography were positive. In all of these patients, osteomyelitis was confirmed by histological examination. RESULTS: Osteomyelitis was localized to the forefoot in 300 (85.7%) patients, to the midfoot in 27 (7.7%) patients, and to the hindfoot in the remaining 23 (6.75) patients. On average, foot lesions had developed 6.6 ± 5.6 months before admission to our unit. Transtibial amputation was performed in 1 (0.33%) patient with forefoot osteomyelitis, in 5 (18.5%) patients with midfoot osteomyelitis, and in 12 (52.2%) patients with osteomyelitis of the heel (χ(2) = 128.4, P < .001). Multivariate analysis showed the independent role that osteomyelitis in the heel region had in major amputation outcome (odds ratio 15.3; P < .001; confidence interval, 17.4-5336.0), dialysis treatment (odds ratio 6.3; P = .012; confidence interval, 2.5-1667.2), and leukocyte count greater than 10(3) mm(3) (odds ratio 2.25; P = .036; confidence interval, 1.1-76.6). CONCLUSIONS: We found a higher rate of transtibial amputation when osteomyelitis involved the heel instead of the midfoot or forefoot in diabetic patients. LEVEL OF EVIDENCE: Level III, retrospective comparative series.
BACKGROUND: To evaluate the prevalence of osteomyelitis in different areas of the foot and the possible correlation between localization and outcome of major amputation. METHODS: From January 2008 to December 2010, a total of 350 diabeticpatients were admitted to our diabetic foot unit for the surgical treatment of osteomyelitis. Osteomyelitis was diagnosed when both the probe-to-bone maneuver and plain radiography were positive. In all of these patients, osteomyelitis was confirmed by histological examination. RESULTS:Osteomyelitis was localized to the forefoot in 300 (85.7%) patients, to the midfoot in 27 (7.7%) patients, and to the hindfoot in the remaining 23 (6.75) patients. On average, foot lesions had developed 6.6 ± 5.6 months before admission to our unit. Transtibial amputation was performed in 1 (0.33%) patient with forefoot osteomyelitis, in 5 (18.5%) patients with midfoot osteomyelitis, and in 12 (52.2%) patients with osteomyelitis of the heel (χ(2) = 128.4, P < .001). Multivariate analysis showed the independent role that osteomyelitis in the heel region had in major amputation outcome (odds ratio 15.3; P < .001; confidence interval, 17.4-5336.0), dialysis treatment (odds ratio 6.3; P = .012; confidence interval, 2.5-1667.2), and leukocyte count greater than 10(3) mm(3) (odds ratio 2.25; P = .036; confidence interval, 1.1-76.6). CONCLUSIONS: We found a higher rate of transtibial amputation when osteomyelitis involved the heel instead of the midfoot or forefoot in diabeticpatients. LEVEL OF EVIDENCE: Level III, retrospective comparative series.
Authors: Dane K Wukich; Kimberlee B Hobizal; Tresa L Sambenedetto; Kristin Kirby; Bedda L Rosario Journal: Foot Ankle Int Date: 2016-08-22 Impact factor: 2.827
Authors: Dominik Duscher; Evgenios Neofytou; Victor W Wong; Zeshaan N Maan; Robert C Rennert; Mohammed Inayathullah; Michael Januszyk; Melanie Rodrigues; Andrey V Malkovskiy; Arnetha J Whitmore; Graham G Walmsley; Michael G Galvez; Alexander J Whittam; Michael Brownlee; Jayakumar Rajadas; Geoffrey C Gurtner Journal: Proc Natl Acad Sci U S A Date: 2014-12-22 Impact factor: 11.205
Authors: Noah G Oliver; John S Steinberg; Kelly Powers; Karen K Evans; Paul J Kim; Christopher E Attinger Journal: J Diabetes Res Date: 2015-01-27 Impact factor: 4.011