Robotic assisted total knee arthroplasty is one the recent advance to improve its outcome especially address issue of precision. Longetivity TKA primarily depends on proper implant alignment. The Aim this study compare precision robotic with ideally planned mechanical parameters in TKA. A 50 patients were included retrospectively study. Patient’s post operative femorotibial angle (mFTA), Latera...

Total hip arthroplasty restores lost mobility to patients suffering from osteoarthritis and acute trauma. In recent years, navigated surgery has been used to control prosthetic component placement. Furthermore, there has been increasing research on what constitutes correct placement. This has resulted in the definition of a safe-zone for acetabular cup orientation. However, there is less defini...

BACKGROUND The skeletal morphology of the temporo-mandibular joint (TMJ) is constantly remodeled. AIMS AND OBJECTIVES A comparative study was undertaken to determine and characterize the differences in the skeletal morphology of TMJ of children and adults. MATERIALS AND METHODS The study was conducted on 30 children cadavers and 30 adult volunteers. Parameters that could reflect TMJ skeleta...

Received 13/07/92; revised 01/12/92; accepted 20/04/93 * Assistant Professor, Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University ** Lecturer, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia. Address reprint requests to: Dr. M. A. Abdullah * Teledyne Hanau, P.O. Box 203,80 Sonwil D...

PURPOSE Conventional instruments are known to result in high numbers of outliers in restoring femoral component rotation primarily due to fixed degree of external rotation resection relative to the posterior condylar line (PCL). Outliers can be reduced by determining the patient specific posterior condylar angle (PCA) preoperatively or intraoperatively. There is a paucity of methods that can be...

The purpose of this study was to investigate in vivo three- dimensional tibiofemoral kinematics and femoral condylar motion in knees with anterior cruciate ligament (ACL) deficiency during a knee bend activity. Ten patients with unilateral ACL rupture were enrolled. Both the injured and contralateral normal knees were imaged using biplane radiography at extension and at 15°, 30°, 60°, 90°, and ...

This study compared two Computer Assisted Surgery (CAS) methods in 212 total knee arthroplasties to evaluate the differences between anatomic landmark axes in determining rotational position of the femoral component. Overall, there were large variations between CAS defined component orientation using an optimized gap-balancing technique and component orientation using anatomic reference axes (r...

The purpose of this study was to examine the changes in temporomandibular joint (TMJ) morphology and clinical symptoms after intraoral vertical ramus osteotomy (IVRO) with and without a Le Fort I osteotomy. Of 50 Japanese patients with mandibular prognathism with mandibular and bimaxillary asymmetry, 25 underwent IVRO and 25 underwent IVRO in combination with a Le Fort I osteotomy. The TMJ symp...

We describe the technique of preoperative embolization of the inferior petrosal sinus/anterior condylar vein complex and the posterior condylar vein in three patients undergoing skull base surgery that required opening of the jugular bulb. Contrary to the usual situation, essentially no blood was lost during the operation, resulting in decreased surgical time and reduced risk to the lower crani...