gms | German Medical Science

Introduction: Forgotten knee is the terminology which is used to describe a post TKR patient who is completely unaware of his knee implant. Various factors like age, sex, BMI, pre operative pain, pre operative patella symptoms have been studied to see their cause effect relationship on the achievement of forgotten knee status by the patient. All the published data till to date shows no relationship between the two.

Aim: To determine whether pre operative DM negatively influence the achievement of forgotten knee status post TKR.

Materials and Methods: 100 patients were studied for the the forgotten knee status post TKR. All the patients were asked a direct question by the independent evaluator at one year post operatively "Whether they have forgotten the presence of knee implant in their body?" 80 patients were female with a mean age of 67 years 20 were male with a mean age of 71 years. Out of 80 females 32 had DM and out of 20 males 6 had DM.

Results: 32 out of 48 non DM females (66.67%) achieved forgotten knee status whereas 17 out of 32 DM females (53%) achieved forgotten knee status. 11 out of 16 (69%) non DM males achieved forgotten knee status whereas 4 out 6 DM males (66%) achieved a forgotten knee status.

Conclusion: Diabetic females had a statistically significant less chances of achieving a forgotten knee as compared to non diabetic females, The chances of achieving forgotten knee in almost the same in diabetic and non diabetic males.