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THA for post-traumatic arthritis versus non-traumatic arthritis Surgical approach for prior ORIF treatment versus prior closed treatment Surgical technique for both primary and revision cases Cementless versus cemented arthroplasty Clinical and radiographic postoperative evaluations Component survivorship analysis Review of complications Expert

occurs in 1-4% of primary THA and upto 16% in revision cases;
- about 74% of THR dislocations are posterior, 16% anterior, and 8% lateral; (from T.K. Cobb et al, 1996);
- most commonly caused by...

40-60% of THR patients who do not receive prophylaxis will get a DVT (dependment on imaging method);
in contrast, the study by Fender et al (JBJS 1997) showed that the incidence of fatal PE (as diagnosed by postmortem examination) was 4 / 2111 patients (0.19%);
Wheeless' Textbook of Orthopaedics

Background Avascular necrosis (AVN) of the femoral head is a pathologic process resulting from interruption of blood supply to bone. AVN of the hip is poorly understood but is the final common pathway of traumatic or nontraumatic factors that compromise the already precarious circulation of the femoral head. Femoral head ischemia...

broad range of forces acts upon the hip joint;
- muscles that cross hip joint generate most of the load that it bears;
Wheeless' Textbook of Orthopaedics

Garden I & II: Diagnosis and Treatment
Garden I:
- incomplete or impacted fracture, in which the trabeculae of the inferior neck are still intact;
- femoral head is tilted in a posterolateral direction, causing vaglus angulation at the frx site;
Garden II:
...

Garden III
complete fracture with partial displacement;
- "if it needs a reduction, then its a type III fracture;"
- frequently there is shortening and external rotation of distal frag;
- retinaculum of Weitbrecht remains attached to, & maintains continuity between, the...

refers to the angle of the compression trabeculae on AP view relative to the longintudinal axis of the femoral shaft and the angle of the compression trabeculae on the lateral view relative to the femoral shaft;
- on the...

Resection Arthroplasty of the Hip
in most pts w/ chronic infection, surgeons continue to advocate complete removal of the prosthesis and the cement;
- in especially difficult cases, resection arthroplasty is an effective means of controlling infection;
- as expected patients will have significant difficulties...

in direct lateral approach, a curvilear split is made thru the anterior portion of the gluteus medius and vastus muscles,in order to gain access to the anterior face of the hip joint;
- this approach allows a rather...

indications: indicated for patients w/ a femoral neck frx who meet the following criteria:
- poor general health thay would prevent a second operation;
- pathologic hip...

Wheeless' Textbook of Orthopaedics
- typically develops on x-ray 3-8 wks postop in pericapsular area of the affected hip joint; - over all incidence is 50% (1/3 of these are clinically significant); - risk factors: ...

Avascular necrosis has been documented following Disseminated Intravascular Coagulation 2 . We are presenting such a case of bilateral avascular necrosis of femoral heads, which interestingly was followed by the spontaneous presentation of the patient's sister with a unilateral avascular necrosis of the femoral head. Both sisters presented with symptoms...

HIP ARTHROPLASTY: NORMAL AND ABNORMAL IMAGING APPEARANCES Lakeside Center - Education Exhibits - Space 0101CE-e Thomas Learch MD, Amilcare Gentili MD, Deborah Forrester MD, Edward McPherson MD USC and UCSD Newer joint replacement systems and surgical techniques combined with the aging US population have lead to an increase in patients undergoing hip arthroplasty...

Discussion of the anatomy of the hip capsule and its significance in femoral neck fractures.
Wheeless' Textbook of Orthopaedics