Abstract
Background: Pain in knee joint is prime cause of disability particularly among postmenopausal women. Ultrasound is a non-invasive and safe imaging modality for the evaluation of knee joint pathologies. Objective: To prove multiparity as a potential cause of femoral cartilage thinning inside knee joint causing pain in postmenopausal women. Methodology: Two hundred knee of 100 postmenopausal women of various parity were conveniently selected. Patients with all other risk factors of the knee joint pain which acts as effect modifying factors were excluded. Femoral articular cartilage was measured at the lateral, central and medial aspect of the knee joint and their average was calculated. Results: 51.12 ±4.46 years was the mean age of patients (ranging from 46 to 60 years). A strong negative relation was found between the parity of the patient and the femoral articular cartilage thickness at the lateral, central and medial aspect of the knee joint of all the patients with a p-value less than 0.1. Significant variation was observed in the femoral articular cartilage thickness in various parties. Conclusion: The femoral articular cartilage decreases in size significantly with an increase in the number of
 deliveries (parity). So, multiparity is one of the potential causes of femoral cartilage degradation in knees joint.
Highlights
Knee joint pain is one of the leading causes of disability in postmenopausal women[1]
As knee joint pain could be caused by multiple disease conditions which were acting as effect modifying factor in this study i.e., diabetes, hypertension, obesity, etc. patients with these effect-modifying factors were excluded in this study
Femoral articular cartilage thickness was measured in nulliparous and multiparous women in their post-menopausal age to establish that an important potential risk factor for pain in knee joints is parity
Summary
Knee joint pain is one of the leading causes of disability in postmenopausal women[1]. Along with the causes mentioned above, it is routinely observed that multiparous women in their postmenopausal age are complaining of knee pain more than uniparous and nulliparous women[4,5]. The majority of the multiparous postmenopausal women visiting the orthopedic clinics are complaining of knee pain and low back pain and. The knees are used almost for every type of moment starting from sitting to standing, walking and running etc. This weight bearing joint of body helps during straightening, bending, twisting as well as during rotating. These movements need the knee joint to be satisfactorily perfect[7]. The incidence of knee pain in japan is very high which is 27.3%, While it is relatively low in America 12–13%8,9
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