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Conditions Procedures
Ganz Approach PDF Print E-mail

October 21, 2011 with permission from Dr. Paul E. Beaulé, MD

Clinical Experience of Ganz Surgical Dislocation
Approach for Metal-on-Metal Hip Resurfacing
Paul E. Beaulé, MD, FRCSC, Paul Shim, MD, FRCSC, and Kamlajeet Banga, MD

Abstract: Although the posterior approach is the most commonly used for hip resurfacing, concerns remain in terms of risk of femoral neck fracture secondary to an osteonecrotic event. The purpose of this study was to look at the short-term results of metal-on-metal hip resurfacing done by the vascular-preserving surgical approach as developed by Ganz in 116 hip resurfacing arthroplasties
performed in 106 patients (86 men, 20 women; mean age, 46.5 years; range, 19-62). At a mean follow-up of 38.3 months (range, 12-84), Harris Hip Scores improved significantly from 53.1 to 90.16 (P b .001). There were 10 nonunions (8.7%) and 21 hips (18.3%) requiring screw removal for painful bursitis. Two hips underwent conversion to total hip arthroplasty: one at 18 months for
femoral loosening and one at 7 years for acetabular loosening. Although the trochanteric slide approach as developed by Ganz provides excellent exposure to the hip joint and preserves femoral head vascularity, it does carry some inherent morbidity in regard to the greater trochanter.

Groin Pain? Psoas Tendonitis? PDF Print E-mail
"Psoas tendinitis is an important reason for groin pain in resurfacing surgery . This is peculiar to resurfacing as the cup for resurfacing is a very large profile ie half a sphere. Nearly all THR cups are only portions (arc) of a hemisphere.
What is a Avascular Necrosis? PDF Print E-mail
AVNAvascular necrosis is a disease resulting from the temporary or permanent loss of the blood supply to the bones.[1] Without blood, the bone tissue dies and causes the bone to collapse.[1] If the process involves the bones near a joint, it often leads to collapse of the joint surface. This disease also is known as osteonecrosis, aseptic (bone) necrosis, and ischemic bone necrosis.[1]
What is Legg Calve Perthes Disease PDF Print E-mail
perthesPerthes disease affects the hip joint. The hip joint is a ball and socket joint, the ball is the femoral head and the socket or cup is the acetabulum. Perthes disease causes avascular necrosis of the femoral head. This means that the blood supply to the femoral head is disrupted causing some of the bone to die. As part of the body's normal healing process, the body breaks down this dead bone before new bone is made. But the resorption of this dead bone leads to structural weakness causing collapse and deformity.
What is Femoroacetabular Impingement and what causes it? PDF Print E-mail

FAIFemoroacetabular refers to the place where the femur (thigh bone) and acetabulum (hip socket) meet. Impingement means pinching.

What is a Femoral Osteotomy? PDF Print E-mail
FOProximal femoral osteotomy is currently commonly used for adults in the treatment of hip fracture nonunions and malunions and in cases of congenital and acquired hip deformities.
What is a Heterotopic Ossification? PDF Print E-mail
HOAttempted frog-leg, lateral radiograph of the left hip. Mature heterotopic ossification (HO) surrounds the greater and lesser trochanters of the femur in this patient, who had a bipolar hip prosthesis placed 2 months earlier. The large amount of HO resulted in a significantly reduced range of motion.
What is a Hip Dysplasia? PDF Print E-mail

DysplasiaHip dysplasia, developmental dysplasia of the hip (DDH)[1] or congenital dysplasia of the hip (CDH)[2] is a congenital or acquired deformation or misalignment of the hip joint.

A helpful website for hip dysplasia is the International Hip Dysplasia Institute

What is the Neck Capsule? PDF Print E-mail
capsuleCapsule of hip joint
The articular capsule (capsular ligament) is strong and dense.
Above, it is attached to the margin of the acetabulum 5 to 6 mm. beyond the glenoidal labrum behind; but in front, it is attached to the outer margin of the labrum, and, opposite to the notch where the margin of the cavity is deficient, it is connected to the transverse ligament, and by a few fibers to the edge of the obturator foramen.
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