This paper presents a hybrid method for creating three-dimensional shapes by sketching silhouette curves. Given a silhouette curve, we approximate its medial axis as a set of line segments, and convolve a linearly weighted kernel along each segment. By summing the fields of all segments, an analytical convolution surface is obtained. The resulting generic shape has circular cross-section, but c...

purpose: to identify the postoperative surgical outcomes and the changes in deviation in patients treated by bilateral medial rectus (bmr) recession for small to large angle esotropia with a minimum follow-up of two years methods: in this retrospective and consecutive case series, we reviewed medical records of 130 patients who had recession surgery for correction of esotropia between 2001-2011...

BACKGROUND Knee osteoarthritis (OA) is largely attributable to chronic excessive and aberrant joint loading. The purpose of this pilot study was to quantify radiographic changes in subchondral bone after treatment with a minimally invasive joint unloading implant (KineSpring(®) Knee Implant System). METHODS Nine patients with unilateral medial knee OA resistant to nonsurgical therapy were tre...

The aim of this study was to evaluate the limitations of the Tönnis angle as one of the most commonly used parameters in the diagnosis of acetabular dysplasia, and to explore the feasibility of the modified Tönnis angle in the diagnosis of acetabular dysplasia. A total of 224 patients (120 females and 104 males) with 448 hips, aged between 15 and 83 years (median, 45.0 years), were selected for...

purpose: to describe the clinical findings, preoperative radiologic findings and results of surgery in a patient with congenital bilateral hypoplasia of medial rectus muscle case report: a 50-year-old man presented with large angle incomitant horizontal deviation with marked deficit of adduction of both eyes. mri finding defined very thin medial rectus muscle. intraoperatively medial rectus mus...

Objective To explore the effects of proximal fibular osteotomy as a new surgery for pain relief and improvement of medial joint space and function in patients with knee osteoarthritis. Methods From January 2015 to May 2015, 47 patients who underwent proximal fibular osteotomy for medial compartment osteoarthritis were retrospectively followed up. Preoperative and postoperative weight-bearing an...

We consider rational surface patches s(u, v) in the four– dimensional Minkowski space IR, which describe parts of the medial surface (or medial axis) transform of spatial domains. The corresponding segments of the domain boundary are then obtained as the envelopes of the associated two–parameter family of spheres. If the Plücker coordinates of the line at infinity of the (two–dimensional) tange...

OBJECTIVE To test the hypothesis that dynamic load at baseline can predict radiographic disease progression in patients with medial compartment knee osteoarthritis (OA). METHODS During 1991-93 baseline data were collected by assessment of pain, radiography, and gait analysis in 106 patients referred to hospital with medial compartment knee OA. At the six year follow up, 74 patients were again...