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  • Author: Marius Pop x
  • Clinical Medicine x
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Changes in Knee Joint Space Width in Treatment with a New Hyaluronic-Based Hydrogel


Objective: Our purpose was to assess the effect of a new hyaluronic acid-based (Hymovis®) injections on joint space width narrowing in patients diagnosed with knee osteoarthritis.

Methods: A prospective clinical trial was conducted in the Department of Orthopedics and Traumatology II from the Clinical County Hospital, Tîrgu Mureș, Romania. Thirty-five patients diagnosed with idiopathic knee osteoarthritis received two intraarticular injections with hyaluronic acid-based hydrogel (24 mg of hyaluronic acid/3 ml) at one-week interval. Anteroposterior radiographs were obtained before the injections, at six and twelve months after. Minimum joint space width was measured by two senior orthopaedics surgeons at each follow up. Each radiograph was measured again by the same evaluators two weeks apart.

Results: Thirty-one patients were present at the final follow-up. A minor reduction in mean weight was noticed (from 82.2 kg ± 16.2 kg to 80.9 kg ± 16.0, p > 0.398) without any correlation with joint space width narrowing. There were no major changes at the first follow up (6 months) regarding joint space narrowing. A reduction in joint space width was observed however at 12 months varying from 4.4 mm (SD ± 1.64, range 1.8-7.1) at the first assessment to 4.3 mm (SD ± 1.26, range 0.0-6.8) at the final follow-up but with no statistical difference (p=0.237).

Conclusion: No significant modification in joint space width at the final follow-up secondarily proved that two injections of Hymovis® may slow down narrowing in the knee joint space over a one-year period.

Open access
Reduced Analgesics Consumption and Pain Intensity after Injections with a New Hyaluronic Acid in Patients with Knee Osteoarthritis


Objective: To determine the influence of a new intraarticular hyaluronic acid based hydrogel (Hymovis®) injections on the amount of analgesics consumption in patients diagnosed with primary knee OA.

Methods: A prospective, single-center study that included 35 patients, aged 45-80 years was conducted in our orthopaedics department. Patients received two intra-articular injections of hyaluronic acid (24 mg/3 ml; 500–730 kDa; Hymovis®) at one week apart. Follow-up was scheduled at 2 and 6 months after the injections. Assessment tools included Visual Analogue Scale (VAS) and an in-house designed questionnaire regarding analgesic consumption (quantity, period and product) during the follow-up.

Results: Compared to baseline, a significant amelioration in visual analogue scale was observed at six months’ follow-up (74.2mm ± 11.7 vs. 57.3mm ± 12.1; p <.0001). 28% (n=10) of the patients reduced their total analgesic consumption at two months after the injections. At final follow-up, the analgesic intake was reduced by more than 50% in almost every case.

Conclusions: Intraarticular administered injections with a novel hyaluronan-based hydrogel (Hymovis®) may reduce the amount of analgesic consumption and self-reported pain intensity in patients with knee OA.

Open access
Obesity and Knee Arthroscopy – a Review


Obesity is currently a global epidemic, often referred to as “globesity”, impacting the life of millions worldwide. A risk factor for many diseases, obesity can also be linked to developing intra-articular lesions of the knee, affecting the menisci, ligaments and cartilage. Furthermore, obesity has been shown to influence the outcome of surgical interventions, including those of the musculoskeletal system. Although many studies addressed the relationship of obesity and joint replacement, articles relating to arthroscopy and obesity, and knee arthroscopy in particular, are a bit scarcer. The majority of data suggest that an increase in BMI leads to a similar increase in the rates of intra- and postoperative complications, and most authors agree that a higher body mass index can influence both the procedure itself and its outcomes, including the subjective results reported by the patients. Still, some studies show different results, especially in patients that are overweight or with low-grade obesity, where the outcomes are comparable to those of the non-obese population. Thus, it can be concluded that obesity is an important patient characteristic that needs to be taken into consideration when planning, performing, and assessing the results of knee arthroscopy.

Open access