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Limited joint mobility in Sri Lankan patients with non-insulin-dependent diabetes.

Two hundred and sixteen patients with non-insulin-dependent diabetes (NIDDM) and 216 age- and gender-matched controls were studied to assess the prevalence of limited joint mobility (LJM). Joint mobility was measured by goniometry at metacarpophalangeal and subtalar joints, and those in whom a prayer sign was elicited were said to have cheiroarthropathy. Forty diabetic patients and 10 controls had cheirorathropathy. The mean range of motion was reduced at metacarpophalangeal joints in diabetic patients with cheiroarthropathy (36.8 +/- 9.2) and without cheiroarthropathy (45.7 +/- 8.1) when compared to controls (51.4 +/- 9, P < 0.01). Mobility at subtalar joints was reduced in those with cheiroarthropathy (25 +/- 5.3, P < 0.01) when compared to controls (32.4 +/- 4.1) and diabetic patients without cheiroarthropathy (27.4 +/- 4.6). No differences in subtalar mobility existed between diabetic patients without cheiroarthropathy and controls. Significant differences were observed in the presence of foot ulceration (35 vs 16%) in those with and without cheiroarthropathy. We conclude that cheiroarthropathy is seen in Sri Lankan patients with NIDDM and that significant limitation of joint mobility is present in patients with NIDDM who do not have overt cheiroarthropathy and that overt cheiroarthropathy may be a marker for a high risk of foot ulceration.