STUDY DESIGN Single-group, repeated-measures design. OBJECTIVE To compare patellofemoral joint kinematics during weight-bearing and non-weight-bearing knee extension in persons with lateral subluxation of the patella. BACKGROUND The only previous study to quantify differences in patellofemoral joint kinematics during weight-bearing and non-weight-bearing tasks was limited in that static loa...

The Lapidus procedure should no longer be considered a strict nonweightbearing bunionectomy. In the past few years, several studies have emerged demonstrating that early weightbearing after a Lapidus fusion is indeed possible with satisfactory fusion rates. This is mainly because of improved fixation techniques available today, which have allowed for better stabilization of the fusion site. Sur...

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Despite overall improved outcomes with open reduction and internal fixation of acetabular fractures, posterior wall fractures show disproportionately poor results. The effect of weight bearing on outcomes of fracture management has been investigated in many lower extremity fractures, but evidence-based recommendations in posterior wall acetabular fractures are lacking. The authors systematicall...

Rehabilitation of patients following anterior cruciate ligament (ACL) reconstruction has undergone remarkable improvements over the past two decades. During this time, ACL research has been at the forefront of many orthopaedic and sports physical therapy clinics. With over 20 years of ACL rehabilitation experience (senior author) and prior collaboration with accelerated ACL rehabilitation pione...

Knee ligament injuries frequently happen when the joint transitions from non-weight bearing (NWB) to weight bearing (WB). To gain insight into the mechanism that produces these injuries, physically active females (N = 41) and males (N = 39) underwent measurement of coupled tibiofemoral joint displacements [anterior tibial translation (ATT) and varus-valgus and internal-external rotations] and n...

[Purpose] The purpose of this study was to investigate the amount of plantar pressures on the lower limb during tilt table standing and to indicate the ideal degree of tilting for partial weight bearing. [Subjects and Methods] Fifteen healthy subjects between the ages of 20 and 30 were recruited as volunteers for this study. All the measurements were taken while standing on a tilt table accordi...

We study the formation and evolution of localized geometrical defects in an indented cylindrical elastic shell using a combination of experiment and numerical simulation. We find that as a symmetric localized indentation on a semicylindrical shell increases, there is a transition from a global mode of deformation to a localized one which leads to the condensation of curvature along a symmetric ...

Conservative treatment of Achilles tendon ruptures may lead to re-rupture. Open surgical repair entails a risk of skin necrosis or infection. Several percutaneous techniques have been used, such as Tenolig or Achillon, but these techniques are costly and may be marred by wound healing problems. Ma and Griffith described a technique for percutaneous repair which left the suture and the knot unde...

The introduction of functional rehabilitation for patients with Achilles tendon rupture has dramatically changed treatment programs for this condition. The authors introduced a functional weight-bearing protocol for patients with an acute Achilles tendon rupture treated operatively and nonoperatively in 2002. They hypothesized that no significant differences would exist in the rerupture rates a...