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Prevalence of Joint Deficit Among Chronic Gvhd Patients Who Do Not Manifest Cutaneous or Fascial Sclerosis
Patients and methods: In a cross-sectional cGVHD natural history study (n=283, median age 43 years, range 4-70), 169 (60%) had JF involvement at the time of enrollment; mild (n=60), moderate (n=78), severe (n=31). Only 27 (16%) patients with JFS involvement had no (n=11) or mild (n=16) skin score (NIH 0-1). Clinical assessments included measured active assisted ROM, grip strength, 2 minute walk, Lee cGVHD symptom scale, Human Activity Profile (HAP) and selected laboratory parameters. JFS-positive patients (NIH JFS score 1-3) with joint restrictions and no sclerotic skin changes (n=43) were compared to JFS-positive sclerotic cGVHD (n=126).
Results: JFS-positive patients (n=169) had significantly more skin erythema, dermal and deep sclerosis. Only 27 (16%) of JFS-positive patients had NIH skin scores of 0 (n=11) or 1 (n=16). JFS-positive patients without evidence of sclerotic cGVHD had significantly shorter duration of cGVHD (p<.001) and were considered to have more active cGVHD based on therapeutic intent (p<.0001), but had lower NIH global severity scores when compared to JFS-positive patients with sclerotic features (p<.0001). Restriction in ROM at most severely affected joints was greater in patients with sclerotic features compared to those without observable sclerotic changes (p<0.0001). JFS-positive patients with sclerotic features were more likely to have self-reported limitations in joint movement (p<0.001). In those with isolated joint involvement, ankles (88%) and shoulders (44%) were most frequently affected. In multivariable analysis, shorter duration of cGVHD, less impairment in measured ROM and lower maximum individual organ score were able to identify 77% of patients with positive JFS without sclerotic features.
Conclusion: Although JFS involvement is common in cGVHD, the incidence of joint involvement in the absence of detectable skin or fascial sclerosis is low. Future refinements of the NIH criteria may need to recognize separately joint restrictions that occur without evidence of sclerotic involvement within the JFS NIH scale.