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1. Springer BD et. al. Why revision total hip arthroplasty fails. OrthoCarolina, PA,Charlotte, NC 28207, USA. Bryan.Springer@orthocarolina.com2. Meneghini RM et. al. Bone remodeling around porous metal cementless acetabularcomponents. The Journal of Arthroplasty. 2009 Apr 8. Epub ahead of print.3. Bonner KF et. al. Cementation of a polyethylene liner into a metal shell. Factors relatedto mechanical stability. Journal of Bone & Joint Surgery - American Volume. 2002 Sep;84-A(9):1587-93.4. Jin, ZM et. al. Deformation of Press-Fittet Metalic Resurfacing Cups, Part 1:Experimental Simulation; Proc. IMechE, Vol. 220, Part H: J. Engineering in Medicine.5. Instron 8511, Instron Corp., Canton, MA.6. S. Tradonsky, P.D. Postak, A. Froisman, A. S. Greenwald and D. Phil. “A Comparison ofthe Disassociation Strength of Modular Acetabular Components”, CORR, No. 296, 1993.FiguresFriday, October 8, 2010, 8:40-9:30Session A11: Knee Arthroplasty in the Middle EastManagement of Flexion Deformity in Total Knee Arthroplasty byRecreation of the Posterior Condylar Recess Without Extra-Bone Resection*Mohamed Eid - Ain Shams University - Cairo, EgyptWael S.Behairy - University - Cairo, EgyptMahmoud A.El-Sebai - University - Cairo, Egypt*Email: moham_eid@yahoo.comThe purpose of this study is to investigate the feasibility of surgical correction of moderateflexion deformity during total knee arthroplasty by recreating the posterior condylar recessfollowing certain sequence of surgical principles without extra-resection of bone from the distalfemur or proximal tibia. The hypothesized surgical protocol was applied in 52 consecutiveprimary TKAs with moderate flexion deformity. Preoperative and residual postoperative flexiondeformity was recorded. Intraoperatively, extension and flexion gap widths were recordedbefore and after surgical correction. Fixed flexion deformity has improved from a preoperativemean value of 24.8±6.4 to a postoperative residual value of 3.2±1.8 (p value < 0.001).Extension and flexion gap widths have increased by a mean value of 3.8±0.4 mm and 4.1±0.7mm respectively (p value < 0.005). There was no significant difference between the changes inthe extension and flexion gaps. The original flexion/extension gap width mismatch(3.2±0.5mm) was compensated for by an upsized femoral component. The statisticallysignificant changes has demonstrated the efficiency of the hypothesized surgical protocol formanagement of flexion deformity during TKA added to the benefits of bone conservation forfuture revision surgery, preservation of surface area for collateral attachments, andestablishment of the joint line at the correct level.file:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]