Ali Hussain

Osteoarthritis of the knee is a common debilitating disease in the elderly population. There are many treatment options available including physiotherapy, analgesics, steroid injections, arthroscopic debridement, high tibial osteotomy (HTO) and arthroplasty. Arthroscopic debridement is beneficial when patients are chosen with certain characteristics. This is a prospective case series where we have correlated the patient and disease characteristics, with the pre- and post-operative Oxford Knee Scores (OKS). This study was done in a single centre with appropriate ethical committee approval and consent. Forty-nine patients were enrolled in the study. The scores were recorded pre-operatively and at 12 months after the interventions. Analysis was done for correlation of the outcome with patient characteristics, radiological and arthroscopic grading. Patients below the age of 56 years, with partial thickness chondral lesions, grade I-III Kellgren-Lawrence (KL) radiological grading and grade I-II Outerbridge arthroscopic grading showed significant improvement at 12 months. Arthroscopic debridement is effective in younger patients with mild to moderate arthroscopic and radiologically graded osteoarthritis of the knee joint.

Osteoarthritis of the knee is a highly prevalent disease globally, causing strain on healthcare resources and leading to a reduced quality of life. There are many treatments proposed for this condition, from conservative measures like analgesics and physiotherapy to surgical options like arthroscopy and total knee arthroplasty (TKA). Arthroscopic debridement and lavage provide significant improvement in a cohort of patients with particular features and can be a temporizing measure before TKA. This study aimed to investigate the results of this procedure, in a case series in the short-term and mid-term, in a low-resource setting. This was a case series of 20 patients, who presented with clinical and radiographic features of mild to moderate (Kellgren-Lawrence grades I-III) primary osteoarthritis of the knee. Arthroscopic debridement and lavage were performed and the Knee Society Score (KSS) was recorded pre-operatively and post-operatively in the short and mid-term at one month, three months, and twelve months. Statistical analyses was done for correlation, with different variables such as the presence of meniscal pathology, loose bodies, grade of osteoarthritis, malalignment, and body mass index (BMI). The KSS improved at one month, three months, and twelve months for all the patients. The improvement in the KSS scores was associated with varus malalignment of less than 10 degrees, a BMI of less than 25, and the presence of loose bodies. There were no adverse events or complications from this study. There was a significant improvement in a patient cohort with malalignment of less than 10 degrees, BMI of less than 25, meniscal pathology, and loose bodies. We can therefore recommend arthroscopic debridement and lavage as a temporizing measure before TKA in this particular cohort.