Study on the Effect of Laser Marker in the Treatment of Osteoarthritis of the Knee Joint and the Accuracy of Reconstruction of Lower Extremity Alignment.

Objective: Knee osteoarthritis (KOA) is a prevalent joint disease characterized by cartilage degradation and periarticular bone hyperplasia. Accurate assessment of knee alignment is fundamental for effective treatment, as it directly influences surgical planning and postoperative outcomes. This study assesses the effectiveness of laser marker technology in KOA treatment and its precision in reconstructing lower extremity alignment.

Methods: Sixty KOA patients admitted to our orthopedics department from March 2020 to December 2021 were randomized into two groups via random number table method, with 30 patients in each. All patients underwent knee replacement surgery. The experiment group received laser marker assessments, while the control group had X-ray examinations. Postoperative Hospital for Special Surgery (HSS) scores and knee mobility of the patients were compared.

Results: At 6 weeks, 3 months, and 6 months postoperatively, the experimental group exhibited significnatly higher HSS scores (89.75±3.81, 91.78±2.15, and 91.84±1.79) than the control group (84.28±2.56, 87.15±1.98, and 88.02±1.21) (P < .05). Better knee mobility (111.17±4.94) was observed in the experimental group versus the control group (108.07±3.08) at 6 months postoperatively (P < .05).

Conclusion: Laser marker technology provides a clear visualization of lower extremity structures, offering a comprehensive assessment of KOA deformities. This could potentially lead to improved diagnostic precision and enhanced surgical outcomes. The study encourages further research into the broader application of laser marker technology in knee osteoarthritis treatment, such as the evaluation of its cost-effectiveness versus traditional methods.