Effect of Short and Long Intramedullary Distal Femoral Cutting Guides in Total Knee Arthroplasty
Article Sidebar
Main Article Content
Abstract
Objective: To compare the accuracy between short and long intramedullarydistal femoral cutting guide(IM guide).
Research design: Case controlled trial study
Setting: Orthopaedics, Surin hospital
Subject: Eighteen osteoarthritis patient
Method: Patients were operated with Total Knee Arthroplasty( TKA) by onesurgeon, prosthesis (Nexgen, Zimmer, Wasaw IN) and technique (external rotate 3 degree, valgus 5 degree, knee flexion 30 degree). The external rod was connected with short (10 cm) and long (22 cm) intramedullary distal femoral cutting guide (IM guide) sequencially. The X-ray tube was placed over the hip joint 100 cm. A roenginogram, the distance was measured between external rod and center of femoral head.
Result: The distance between external rod and center of femoral head wasmeasured in millimeters(mm), minus(-) if medial to center of femoral head(varus cut) and plus(+) if lateral to center of femoral head (valgus cut). An averate distance of short intramedullary distal femoral cutting guide was 9.89i29.38 mm and long intramedullary distal femoral cutting guide was 4.17+23.48 mm ; Wilcoxon singed ranks test, 95% Cl.
Conclusion: This study compared the accuracy between short and long intramedullary distal femoral cutting guides. The result was not significant statistical different (P=0.15). However, we could use both of short and long intramedullary distal femoral cutting guide in total knee arthroplasty.
Article Details
References
2. Siegel JL, Shall LM. Femoral instrumentation using the anterosuperior iliac spine as a landmark in total knee arthroplasty.An anatomic study. J Arthroplasty. 1991 Dec;6(4):317-20
3. Otani T, Whiteside LA, White SE. Cutting errors in preparation of femoral components in total knee arthroplasty. J Arthroplasty. 1993 Oct;8(5):503-10.
4.Teter KE, Bregman D, Colwell CW. Accuracy of intramedullary versus extramedullarytibial alignment cutting systems in total knee arthroplasty. Clin Orthop. 1995 Dec;(321):106-10.
5. Reed SC, Gollish J. The accuracy of femoral intramedullary guides in total knee arthroplasty. J Arthroplasty. 1997 Sep;12(6):677-82.
6. Yau WP, Ng TP, Chiu KY. Unusual complication associated with femoral intramedullary alignment guide in total knee arthroplasty. J Arthroplasty. 2001 Feb;16(2):247-9.
7. Novotny J, Gonzalez MH, Amirouche FM, Li YC. Geometric analysis of potential error in using femoral intramedullary guides in total knee arthroplasty. J Arthroplasty. 2001 Aug;16(5):641-7.
8. Laskin RS. Instrumentation pitfalls: you just can’t go on autopilot!.J Arthroplasty. 2003 Apr; 18(3 Suppl 1):18-22.
9. Nelson CL, Saleh KJ, Kassim RA, Windsor R, Haas S, Laskin R, Sculco T. Total knee arthroplasty after varus osteotomy of the distal part of the femur. J Bone Joint Surg Am. 2003 Jun;85-A(6):062-5.
10. Kenneth ET, Davis Bregman, Clifford WC. The efficacy of intramedullary femoral alignment in total knee replacement. Clin Orthop. 1995 Dec;(321):117-21.