VARIATION OF VALGUS ANGLE IN PATIENTS PRESENTING FOR TOTAL KNEE ARTHROPLASTY
Journal Title: Journal of Evidence Based Medicine and Healthcare - Year 2017, Vol 4, Issue 28
Abstract
BACKGROUND Total Knee Arthroplasty (TKA) nowadays is a commonly used treatment for patients suffering from severe osteoarthritis. The success of TKA is influenced by a complex interaction between the bony anatomy, the geometry of the components and the soft tissue balancing. Valgus angle subtended between the mechanical and anatomical axis of femur is one of the major factors influencing the alignment of implants. The objective of this study is to determine the variation of this valgus angle using a scannogram in patients with severe osteoarthritis presenting for TKA. MATERIALS AND METHODS 150 consecutive patients of osteoarthritis of the knee joint presenting for total knee arthroplasty participated in our study. All patients underwent a preoperative scannogram, the mechanical and anatomical axis were drawn and the valgus angle was measured on the PACS (picture archiving and communication system) software. RESULTS The mean age of patients undergoing TKA was 63.62±8.38 years. Although, the mean valgus angle for the patients was 6.009±0.89 degrees, only 45 (30%) of 150 had valgus angle between 6-7 degrees. 72 (48%) had valgus angle in the range of 5-6 degrees and 9 (6%) had valgus angle in the range of 4-5 degrees. In 21 (14%) knees, valgus angle was more than 7 degrees, while in 3 (2%) knees, it was less than 4 degrees. CONCLUSION Fixed valgus angle resection is not reliable in restoring mechanical axis in total knee arthroplasty. A proper preoperative planning to determine the accurate valgus angle is a must to maintain alignment while performing total knee arthroplasty and thereby improve the long-term results. Scannogram is an easy, reliable and cost-effective method to determine the valgus angle.
Authors and Affiliations
Abhinav Bhatnagar, Sonu Mehta, Danish Mohammad
Keywords
Related Articles
- EP ID EP217750
- DOI 10.18410/jebmh/2017/324
- Views 96
- Downloads 0
OUTCOMES OF CAESAREAN MYOMECTOMY - A RETROSPECTIVE STUDY
The traditional teaching was not to touch a fibroid during pregnancy, in fear of possibility of intractable intra operative bleeding and post-operative morbidity. In the recent years with advent in obstetric analgesia an...
COMPARISON OF DIAGNOSTIC EFFICACY BETWEEN CONVENTIONAL CYTOPATHOLOGY & LIQUID BASED CYTOLOGY IN THYROID FNA SMEARS USING BETHESDA SYSTEM OF REPORTING
BACKGROUND Conventional cytology is a minimal invasive procedure used for all palpable lesions. Liquid Based Cytology (LBC) is a modified technique used in the current study. The objective of the study is to find out the...
PROSPECTIVE NON-RANDOMISED OBSERVATIONAL CASE STUDY DIABETIC MACULOPATHY
BACKGROUND The epidemiological study of diabetic maculopathy in Indian population for the period of three years duration and study the treatment outcome following laser photocoagulation for various type of diabetic macul...
A RARE CASE OF BOWEL GANGRENE WITH PREGNANCY WITH IUD
PRESENTATION OF CASE A 26 year primigravida was referred with the diagnosis of 28 week pregnancy with intestinal obstruction. She complained of distension, pain in abdomen, not passing stool and flatus since 2 days, vomi...
CLINICAL PROFILE, AETIOLOGY & EEG CHARACTERISTICS OF NEONATAL SEIZURES
BACKGROUND Seizures are a common neonatal neurologic emergency, affecting approximately 1-4 per 1000 live births. The first 28 days of life (defining the neonatal period) represents the period of greatest seizure hazard...