Excessive tibial torsion, a rotational deformity about the long axis of the tibia, is common in patients with cerebral palsy who walk with a crouch gait. Previous research suggests that this deformity may contribute to crouch gait by reducing the capacity of soleus to extend the knee; however, the effects of excess external torsion on the capacity of other muscles to extend the stance limb duri...

The management of osteoarthritis of the knee associated with patellar instability secondary to external tibial torsion > 45 degrees is challenging. Patellofemoral biomechanics in these patients cannot be achieved by intra-articular correction using standard techniques of total knee replacement. We reviewed seven patients (eight knees) with recurrent patellar dislocation and one with bilateral i...

BACKGROUND Tibial torsion is the angle between the transverse axes of the proximal and distal tibial articular surfaces. It measures the degree of twisting of the tibia around its own longitudinal axis. The accurate measurement on the magnitude of tibial torsion is of great use in monitoring derangements. It is also useful as a baseline in the event of surgical intervention. Various methods hav...

BACKGROUND Locking compress plate, as external fixator, is an attractive technique for distal tibial fracture treatment. But it still remains unclear whether the external LCP has sufficient stiffness. Thus, the present study aims to make a comprehensive evaluation of the stiffness of external locking compress plate when it is used as an external fixator in distal tibial fractures treatment. M...

BACKGROUND Lower extremity analysis for preoperative total knee and hip arthroplasty routines can increase surgery success rate and hence reduce associated costs. Current tools are limited by being invasive, limited to supine analysis, or too expensive. This study aimed to propose and validate a device, OrthoPilot®, based on the combined use of a stereophotogrammetric and ultrasound system whic...

OBJECTIVES To evaluate morphological parameters of the femur, tibia, and patella in Toy Poodles with medial patellar luxation (MPL) using three-dimensional (3D) computed tomography (CT) and to compare these parameters between radiography and CT. METHODS Thirty-five hindlimbs of Toy Poodles were divided into normal and grade 2 and 4 MPL groups. The anatomical and mechanical lateral proximal fe...

OBJECTIVE To determine the extent to which select lower extremity alignment characteristics of the pelvis, hip, knee, and foot are related to the Q angle. DESIGN Descriptive cohort study design. SETTING Applied Neuromechanics Research Laboratory. PARTICIPANTS Two hundred eighteen participants (102 males, 116 females). ASSESSMENT OF RISK FACTORS Eight clinical measures of static alignmen...

ThE JOURNAL OF BONE AND JOINT SURGERY Professional golfers play frequently and may strike an average of 800 balls a week for 40 weeks of the year, driving them at over 130 miles per hour. The forces in the tibia are very unlikely to cause a traumatic fracture in normal bone (Paul, personal communication, 1993). The previous symptoms in both cases suggest that the major fractures were due to ear...

Tibia vara was first reported by Erlacher (1922) and later fully described by Blount (1937), after whom the disorder is usually named. Only about 150 cases in all have been reported in the literature. The disease is therefore relatively uncommon and it seems to have a geographic distribution. occurring chiefly in and around the Caribbean. The condition consists essentially in the development in...