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-
1
van der Leeden M, Steultjens M, Dekker JH, et al: Forefoot joint damage, pain and disability in rheumatoid arthritis patients with foot complaints: the role of plantar pressure and gait characteristics. .Rheumatology (Oxford) 45::465. ,2006. .
-
2
Turner DE, Helliwell PS, Emery P, et al: The impact of rheumatoid arthritis on foot function in the early stages of the disease: a clinical case series. .BMC Musculoskelet Disord 7::102. ,2006. .
-
3
Tuna H, Birtane M, Tastekin N, et al: Pedobarography and its relation to radiologic erosion scores in rheumatoid arthritis. .Rheumatol Int 26::42. ,2005. .
-
4
Farrow SJ, Kingsley GH, Scott DL: Interventions for foot disease in rheumatoid arthritis: a systematic review. .Arthritis Rheum 53::593. ,2005. .
-
5
Davys HJ, Turner DE, Helliwell PS, et al: Debridement of plantar callosities in rheumatoid arthritis: a randomized controlled trial. .Rheumatology (Oxford) 44::207. ,2005. .
-
6
Conrad KJ, Budiman-Mak E, Roach KE, et al: Impacts of foot orthoses on pain and disability in rheumatoid arthritics. .J Clin Epidemiol 49::1. ,1996. .
-
7
Hodge MC, Bach TM, Carter GM: novel Award First Prize Paper: orthotic management of plantar pressure and pain in rheumatoid arthritis. .Clin Biomech (Bristol, Avon) 14::567. ,1999. .
-
8
Orlin M, Stetson K, Skowronski J, et al: Foot pressure distribution: methodology and clinical application for children with ankle rheumatoid arthritis. .Clin Biomech (Bristol, Avon) 12::S17. ,1997. .
-
9
Minns RJ, Craxford AD: Pressure under the forefoot in rheumatoid arthritis: a comparison of static and dynamic methods of assessment. .Clin Orthop Relat Res 187::235. ,1984. .
-
10
Yavuz M, Erdemir A, Botek G, et al: Peak plantar pressure and shear locations: relevance to diabetic patients. .Diabetes Care 30::2643. ,2007. .
-
11
Yavuz M, Tajaddini A, Botek G, et al: Temporal characteristics of plantar shear distribution: relevance to diabetic patients. .J Biomech 41::556. ,2008. .
-
12
Budiman-Mak E, Conrad KJ, Roach KE: The foot function index: a measure of foot pain and disability. .J Clin Epidemiol 44::561. ,1991. .
-
13
Yavuz M, Botek G, Davis BL: Plantar shear stress distributions: comparing actual and predicted frictional forces at the foot-ground interface. .J Biomech 40::3045. ,2007. .
-
14
Davis BL, Perry JE, Neth DC, et al: A device for simultaneous measurement of pressure and shear force distribution on the plantar surface of the foot. .J Appl Biomech 14::93. ,1998. .
-
15
McPoil TG, Cornwall MW, Dupuis L, et al: Variability of plantar pressure data: a comparison of the two-step and midgait methods. .JAPMA 89::495. ,1999. .
-
16
Yavuz M, Tajaddini A, Botek G, et al: Temporal characteristics of plantar shear distribution: relevance to diabetic patients. .J Biomech 41::556. ,2008. .
-
17
Gould JS: Conservative management of the hypersensitive foot in rheumatoid arthritis. .Foot Ankle 2::224. ,1982. .
-
18
Spence WR, Shields MN: Prevention of blisters, callosities and ulcers by absorption of shear forces. .JAPA 58::428. ,1968. .
Plantar Shear Stress Distribution in Patients with Rheumatoid Arthritis
Relevance to Foot Pain
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Background: Rheumatoid arthritis is an autoimmune disease that causes chronic, progressive joint inflammation; it commonly affects the joints of the feet. Biomechanical alterations and daily pain in the foot are the common outcomes of the disease. Earlier studies focusing on plantar pressure in such patients reported increased vertical loading along with peak pressure-pain associations. However, footwear designed according to the pressure profiles did not relieve symptoms effectively. We examined plantar shear and pressure distribution in patients with rheumatoid arthritis and compared the findings with those of controls, and we investigated a potential relationship between foot pain and local shear stresses.
Methods: A custom-built platform was used to collect plantar pressure and shear stress data from nine patients with rheumatoid arthritis and 14 control participants. Seven patients reported the presence of pain under their feet. Pressure-time and shear-time integral values were also calculated.
Results: Peak pressure, pressure-time integral, resultant shear-time integral, and mediolateral shear stress magnitudes were higher in the complication group (P < .05). An association between peak shear-time integral and maximum pain locations was observed.
Conclusions: Increased mediolateral shear stresses under the rheumatoid foot might be attributable to gait instability in such patients. A correlation between the locations of maximum shear-time integral and pain indicate the clinical significance of plantar shear in patients with rheumatoid arthritis. (J Am Podiatr Med Assoc 100(4): 265–269, 2010)
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