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Indian Journal of Orthopaedics Surgery

Functional outcome of Primary total knee replacement in severe flexion deformity and without flexion deformity knee – A comparative study

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Author Details: Mukesh Kumar, Vinod Padmanabhan

Volume : 3

Issue : 1

Online ISSN : 2395-1362

Print ISSN : 2395-1354

Article First Page : 100

Article End Page : 104


Aims & Objectives: To know the functional outcome of Primary TKR in Severe fixed flexion deformity of knee compared with TKR in knees without fixed flexion deformity (FFD).
Materials & Methods: This is a prospective study of the patients with severe flexion deformity and without FFD of knees underwent primary TKR between 2009-2014. Total of 45 knees were taken for the study with 22 with FFD of more than 30 degree and 23 were without FFD which were kept as a control. This study includes both inflammatory and non-inflammatory arthritis.
Results: Primary TKR in FFD - Average FFD was 46 degree, Pre-operative average KSS-pain score was 28 and functional score was 12, post operatively KSS pain score was 83.2 and function score was 78.3. There was significant difference in pain score and patient’s satisfaction in patients with inflammatory arthritis (though the number were less) than non-inflammatory arthritis.
The postoperative KSS- pain and functional score, in patients with no FFD was comparable with patients with FFD and there was no significant difference.
Conclusion: Patients with severe FFD knees perform same as patients with knees without FFD. Finally, patient with severe FFD and Inflammatory arthritis are happier than patient without FFD knees in midterm follow up.
Level of Evidence: II

  FFD(fixed flexion deformity), Total Knee Replacement, Knee society score