Correlation of Posterior Tibial Slope with Metaphysio-diaphyseal Angle in Total Knee Arthroplasty: A Radiological Study
Journal Title: INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY - Year 2017, Vol 5, Issue 8
Abstract
Background: Posterior tibial slope (PTS) is an important factor affecting post-operative range of motion following total knee arthroplasty (TKA). Metaphysio-diaphyseal angle (MDA) is a new entity defined as the angle between proximal anatomical axis and metaphyseal axis of tibia. This study was undertaken to determine PTS in Indian patients and find its correlation with MDA of tibia. The accuracy of extramedullary jigs and the influence of MDA on the accuracy was also evaluated. Materials and Methods: Data of 100 consecutive patients undergoing TKA in a single center by a single surgeon were analyzed. Posterior cruciate ligament substituting TKA was done with the same jig to achieve different PTS in different patients. MDA, pre-operative PTS, and post-operative PTS were calculated. The data were analyzed using appropriate statistical analysis. Results: Mean pre-operative PTS was 11.64° and mean MDA was 23.76° with a strong correlation between them (Pearson’s coefficient 0.72). Extramedullary jigs were accurate in 53% of cases. In remaining 47%, post-operative PTS was less than planned PTS in 30%, and more in 17%. Mean post-operative PTS was 2.54°. In patients with MDA < 20°, post-operative PTS was significantly less (P = 0.0176) compared with those with MDA > 20°. Conclusions: The study establishes the positive correlation between MDA and PTS in Indians; and that MDA is an independent factor affecting the accuracy of extramedullary jigs in TKA.
Authors and Affiliations
Johney Juneja, Sa Mustafa, Rishi Gupta
A Study on Changing Clinical Profile of Chronic Pancreatitis from a Tertiary Care Centre
Background: Idiopathic chronic pancreatitis (ICP) is the most common etiology of CP in most of the studies in India. However, a change in etiological pattern has been observed recently. Aim: To study the clinical profile...
Pressor Response to Laryngeal Mask Airway Insertion versus Endotracheal Intubation in Standard Anesthetic Practice
Background: Laryngeal mask airways (LMAs) are being used increasingly nowaday as an alternate option to endotracheal intubation, as it is less invasive and causes less discomfort in the post-operative period. In a few pa...
High-resolution Computed Tomography Lung Spectrum in Symptomatic Adult HIV-positive Patients in Correlation with CD-4 Count
Context: Pulmonary disease accounts for 30–40% of the acute hospitalizations of HIV-positive patients. The CD4 count, an indicator of the severity of immune compromise, is of paramount importance for rendering an appropr...
A Qualitative Study on the Thoughts of Diabetics Against Initiation of Insulin Therapy
Background: Insulin therapy is often needed for proper glycemic control of type 2 diabetes mellitus as well as for other reasons, but the prescribing doctor very often encounters a vehement objection from the patient to...
A Correlative Study on Clinical, Pathological and Computed Tomography Scan Findings of Cervical Nodal Metastases in Head and Neck Malignancies
Background: Presence or absence of metastatic disease in the neck determines the prognosis and survival period of patients with malignant tumors of head and neck. The year survival rate is reduced to half if the palpable...