2.4 Surgical Approaches & Prosthesis Alignment
The most commonly used surgical approaches for THA
The most commonly used surgical approaches for THA
01. What are the three basic routes that are used to access the hip joint?
- Anterior
- Lateral
- Posterior
02. The Moore (or southern approach) to the hip joint is a commonly used procedure.
How is the patient positioned?
lateral decubitus position
03. Summarise the basic steps of the Smith-Peterson approach to the hip joint.
Anterior Approach
- long incision from ilia crest towards ant sup ilia spine
- detach rectus femoris
- leg adducted and rotated
- incise joint capsule
- idlocate hip by external rotatin of the femur
04. What position is the patient in when the anterolateral approach is to be used?
What is the disadvantage of this approach?
supine position
- Acetabular exposure is difficult
- Gluteus medius can be damaged
- femoral component palcement may difficult
- loss of abductor muscle power
??05. When the acetabulu is reamed with cheese-grater reamers, when does the surgeon consider reaming is complete?
?
??06. What is the aim of acetabular reaming?
?
??07. Where a cemted cup is to be used, what additional step may be taken following reaming?
?
??08. The pirifomis fossa is a useful anatomical landmark. What does its position define?
?
??09. During femoral preparation, why is it sometimes necessary to remove a small piece of cortex from the medial aspec the greater trochanter?
?
??10. Where cemented stems are used, in general, how much bigger is the broach compared to the definitive implant?
Why is this?
1.7mm
11. What is the value of pre-operative templating prior to total hip replacement?
Grössenbereich
Anhaltspünkte um an den richtigen Ort zu kommen
Wo ist das Rotationszentrum
12. When the femur is significantly broached with an incresing size of reamer, what is considedered the end point?
richtige Höhe
Akkustisch
Rotationsstabil
Taktil
preoperative Planung
13. How might leg length be adjusted at the time of trial reduction?
adjust neck length by using different length
modular geads
Coxa vara shaft
14. When is minimally invasive surgery cntraindicated?
complicated primary cases
revisions
alignment & orientation of the components
??15. Summarise the rooute to the hip joint capsule when the posterior minimaly invasive approach is used.
?
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01. What are the three basic routes that are used to access the hip joint?
- Anterior
- Lateral
- Posterior
02. The Moore (or southern approach) to the hip joint is a commonly used procedure.
How is the patient positioned?
lateral decubitus position
03. Summarise the basic steps of the Smith-Peterson approach to the hip joint.
Anterior Approach
- long incision from ilia crest towards ant sup ilia spine
- detach rectus femoris
- leg adducted and rotated
- incise joint capsule
- idlocate hip by external rotatin of the femur
04. What position is the patient in when the anterolateral approach is to be used?
What is the disadvantage of this approach?
supine position
- Acetabular exposure is difficult
- Gluteus medius can be damaged
- femoral component palcement may difficult
- loss of abductor muscle power
??05. When the acetabulu is reamed with cheese-grater reamers, when does the surgeon consider reaming is complete?
?
??06. What is the aim of acetabular reaming?
?
??07. Where a cemted cup is to be used, what additional step may be taken following reaming?
?
??08. The pirifomis fossa is a useful anatomical landmark. What does its position define?
?
??09. During femoral preparation, why is it sometimes necessary to remove a small piece of cortex from the medial aspec the greater trochanter?
?
??10. Where cemented stems are used, in general, how much bigger is the broach compared to the definitive implant?
Why is this?
1.7mm
11. What is the value of pre-operative templating prior to total hip replacement?
Grössenbereich
Anhaltspünkte um an den richtigen Ort zu kommen
Wo ist das Rotationszentrum
12. When the femur is significantly broached with an incresing size of reamer, what is considedered the end point?
richtige Höhe
Akkustisch
Rotationsstabil
Taktil
preoperative Planung
13. How might leg length be adjusted at the time of trial reduction?
adjust neck length by using different length
modular geads
Coxa vara shaft
14. When is minimally invasive surgery cntraindicated?
complicated primary cases
revisions
alignment & orientation of the components
??15. Summarise the rooute to the hip joint capsule when the posterior minimaly invasive approach is used.
?
