Gait pattern normalization after lateral retinaculum reconstruction for iatrogenic medial patellar instability.

A case of medial patellar instability following Insall's proximal realignment studied pre- and postoperatively by gait analysis is presented. Preoperative gait analysis showed an increased stance time period as well as an increased horizontal braking, heel contact and toe-off vertical peak forces on the affected limb. In our case, gait parameters tended to shift towards a normal value pattern after reconstruction of the lateral retinaculum.

Medial patellofemoral ligament reconstruction in patients with lateral patellar instability and trochlear dysplasia.

Background: Reconstruction of the medial patellofemoral ligament has been proven to restore stability in patients with lateral patellar instability. No study to date has examined the results in a patient population with the predisposing factor of femoral trochlear dysplasia.

Hypothesis: Reconstruction of the medial patellofemoral ligament restores stability and provides pain relief in patients who have lateral patellar instability in association with trochlear dysplasia.

Case reports: A subtrochanteric femur fracture with long intramedullary femorotibial nail for knee arthrodesis.

We present a case report of a patient who had a transverse subtrochanteric femur fracture develop 2 months after uneventful placement of a long femorotibial intramedullary nail for knee arthrodesis. To date, diaphyseal fracture of a femur already stabilized with an intramedullary nail has not been reported. The possible etiology for this unusual complication is discussed.

Fresh osteochondral allografts for patellofemoral arthritis: long-term followup.

Unlabelled: Treatment of patellofemoral osteoarthritis in young patients is a challenge for orthopaedic surgeons. Concern about loosening and wear in active young people render arthroplasty more suitable for older patients. Osteochondral allografts may be a good alternative, but reports of experience with such grafts in patellofemoral joints are limited.

Cementless porous-coated sockets without holes implanted with pure press-fit technique.

We evaluated the use of a pure press-fit technique in 220 porous-coated acetabular components without screw holes at mean follow-up of 6.1 years (4-7.5 years).

Lateral patellofemoral ligament reconstruction.

Abstract Medial dislocation of the patella is a disabling condition; there are several reports in the literature describing this condition and its association with failed lateral retinacular release. The diagnosis and treatment of medial subluxation of the patella may be difficult. Direct repair or imbrication of the lateral retinaculum provides initial stability but a noticeable increase in medial excursion usually reappears.