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Effectiveness of Proximal Fibular Osteotomy as an Alternative Treatment Modality for Pain Relief and Functional Improvement in Medial Compartment Knee Osteoarthritis
RC05-RC09
Correspondence
Dr. Sumeet Sharad Patil,
Senior Resident, Department of Orthopaedics, Indira Gandhi Government Medical College, Nagpur, Maharashtra, India.
E-mail: sumpatil92@gmail.com
Introduction: Medial compartment knee Osteoarthritis (OA) is a painful and debilitating disease that hinders an individual’s day-to-day activities physically and psychologically. Therefore, amelioration of pain is of utmost importance, which can be achieved by decompressing the medial compartment by Proximal Fibular Osteotomy (PFO). PFO is a simple, novel surgical technique that leads to significant pain relief and functional improvement in patients with knee OA.
Aim: To assess the effectiveness of PFO in patients with primary medial compartment OA of the knee joint in terms of pain relief and functional outcome.
Materials and Methods: A prospective and interventional study was carried out in the Department of Orthopaedics at Indira Gandhi Government Medical College, Nagpur, Maharashtra, India, during the period from November 2017 to October 2020. A total of 58 patients with moderate to severe symptoms of medial compartment knee OA underwent PFO. Visual Analogue Score (VAS score), Knee Society Score (KSS), and Femoro-tibial Angle (FTA) were assessed preoperatively, postoperatively, and during follow-up visits at 1, 3, 6, and 12 months. These parameters (VAS score and KSS) were also compared with groups based on Body Mass Index (BMI) and Kellgren-Lawrence (K-L) grading. Paired-t test was used. A p-value of <0.001 was considered statistically significant.
Results: Remarkable pain relief was observed by the significant decline in mean VAS score from 8.04±0.68 to 2.65±1.14 at the final follow-up. Mean KSS at final follow-up was 69.82±3.03, which was significantly higher than the preoperative score of 43.38±2.39 (p-value <0.001). A change in mechanical alignment was seen with a decrease in mean FTA from 183.38±1.29° to 179.84±1.83° (p-value <0.001) at the final follow-up. Also, it was observed that results were much more encouraging and consistent in patients with BMI ≤24.99 unit kg/m2 and K-L grades 1 and 2.
Conclusion: The PFO is a simple, safe, reasonable, and effective surgical modality of treatment in patients with primary medial compartment knee OA that provides good pain relief and functional improvement. PFO can be an alternative treatment modality for pain relief in patients with medial compartment knee OA.