Assessment of lower extremity venous insufficiency and lipedema and their association with knee symptoms, functions, and quality of life in patients with knee osteoarthritis.

OBJECTIVE: To evaluate the effects of the venous insufficiency (VI) or lipedema on the symptoms, functions, and quality of life (QoL) of patients with knee osteoarthritis (OA). METHODS: 96 patients with stage 3/4 knee OA were included in the study. Patients were grouped as OA (n = 35), VI + OA (n = 35), and lipedema + OA (n = 26). Range of motion (ROM), Visual Analogue Scale (VAS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), short-form (SF-36), and 6-minute walking test (6MWT) were evaluated. RESULTS: WOMAC stiffness score was significantly higher in the VI group than the other groups (p < .05). VAS resting, WOMAC pain, function, and total scores were significantly higher in the lipedema + OA and VI + OA groups than the OA group (p < .05). SF-36-physical role limitation was significantly lower in the lipedema and VI groups (p < .05). CONCLUSION: VI or lipedema accompanying knee OA increases the existing disability due to OA by negatively affecting patients regarding pain, QoL, and physical functioning.

Assessment of pulsed electromagnetic field therapy with Serum YKL-40 and ultrasonography in patients with knee osteoarthritis.

AIM: The use of biomarkers of osteoarthritis (OA) have potential for early diagnosis, evaluation of disease severity and monitoring treatment. Serum and synovial fluid YKL-40 levels are increased in severe knee OA. Pulsed electromagnetic field (PEMF) therapy is a novel treatment method for OA. However, studies evaluating the PEMF therapy in treatment of knee OA revealed conflicting results. This study was conducted to objectively assess the effect of PEMF therapy in patients with knee OA, by using ultrasonographic measurements and a novel biomarker, YKL-40. METHODS: Forty patients were randomized into two treatment groups. Both groups received conventional physical therapy, while Group 1 received additional PEMF therapy. The patients were asked to rate their pain on a visual analogue scale (VAS) and complete a Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaire. Serum YKL-40 levels were measured, and knee effusion and cartilage degeneration level were evaluated with ultrasonography before and after treatment. RESULTS: Pre-treatment YKL-40 level was correlated with WOMAC pain subscale (P = 0.032, r = 0.339). VAS and WOMAC scores significantly improved in both treatment groups (P < 0.05). The effusion in the right knee significantly decreased in Group 1. The change in YKL-40 level was not correlated with the change in VAS, WOMAC scores and knee effusion. CONCLUSION: This study revealed that adjuvant PEMF therapy has no additional effect on pain in patients with knee OA. Serum YKL-40 level seems to be unuseful for monitoring the treatment in knee OA.

Ultrasonographic assessment of pes anserinus tendon and pes anserinus tendinitis bursitis syndrome in patients with knee osteoarthritis.

OBJECTIVE: The aim of this study was to assess the ultrasonographic (US) findings of pes anserinus tendon and bursa in patients with knee osteoarthritis (OA) with or without clinical pes anserinus tendinitis bursitis syndrome (PATBS). METHODS: A total of 157 female patients with the diagnosis of knee OA on both knees (314 knees), and 30 age, and body mass index- matched healthy female controls without knee pain (60 knees), were included in the study. PATBS was clinically diagnosed. US evaluation parameters were the measurement of the thickness of pes anserinus tendon insertion region (PA) and examination of the morphologic intratendinous PA tissue characteristics and pes anserinus bursitis (PAB). Radiographic knee osteoarthritis graded I-IV according to Kellgren and Lawrence (KL) for each knee was recorded. Pain and functional status were assessed by the Visual Analog Scale (VAS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). RESULTS: There were 183 PATBS (58.3%) clinical diagnoses among the 314 knees with OA. The mean thickness of PA in the patients with knee OA graded 1,2,3,4 with/without PATBS was significantly greater than the controls (p = 0.001). The mean thickness of PA in knees with OA KL graded 3 and 4 with/without PATBS, was greater than knees with OA KL graded 1 and 2 with/without PATBS (p < 0,05) (except knee OA KL graded 2 with PATBS versus knee OA KL graded 4 without PATBS).The knee OA KL graded 1,2,3,4 with PATBS had significantly more PAB and less loss of normal fibrillar echotexture of PA compared to controls and knees with OA KL graded 1,2,3,4 without PATBS (p < 0.05). The VAS scores of knees with OA KL graded 3, 4 with PATBS were significantly greater than those of knees with OA KL graded 3,4 without PATBS (p < 0.05). PA thickness was significantly associated with the KL grade (r: 0.336, p:0.001) and PATBS (r: 0.371, p < 0.001). CONCLUSION: It is concluded that the mean thickness of PA in knees with OA with/without PATBS was significantly greater than the controls. The mean thickness of PA in knees with OA, KL graded 3 and 4 with/without PATBS, was greater than in knees with OA KL graded 1 and 2 with/without PATBS. The knee OA with PATBS had significantly more PAB, less loss of normal fibrillar echotexture of PA, and higher VAS scores compared to the knees with OA without PATBS. US can serve as a useful diagnostic tool for detection of PATBS in knee OA.