Anterior approach to the hip (Smith-Peterson)
approaches FMH
approaches FMH
Kartei Details
Karten | 8 |
---|---|
Sprache | English |
Kategorie | Medizin |
Stufe | Andere |
Erstellt / Aktualisiert | 21.10.2012 / 11.06.2018 |
Lizenzierung | Kein Urheberrechtsschutz (CC0) |
Weblink |
https://card2brain.ch/box/anterior_approach_to_the_hip_smithpeterson
|
Einbinden |
<iframe src="https://card2brain.ch/box/anterior_approach_to_the_hip_smithpeterson/embed" width="780" height="150" scrolling="no" frameborder="0"></iframe>
|
Indications
open reduction of congenital hip dislocations
synovial biopsies
intra-articular fusions
THA
excision of pelvic tumors
pelvic osteotomies
Internervous plane
Superficial
sartorius (femoral n.)
tensor fasciae latae (superior gluteal n.)
Deep
rectus femoris (femoral n.)
gluteus medius (superior gluteal n.)
Incision
make long incision following anterior half of iliac crest to ASIS
from ASIS curve inferiorly in the direction of the lateral patella for 8-10 cm
Superficial dissection
Superficial dissection
identify gap between sartorius and tensor fasciae latae
dissect through subcutaneous fat (avoid lateral femoral cutaneous n.)
incise fascia on medial side of tensor fascia latae
detach origin of tensor fasciae latae of iliac to develop internervous plane
ligate the ascending branch of the lateral femoral circumflex artery (crosses gap between sartorius and tensor fascia latae)
Deep dissection
Deep dissection
identify plane between rectus femoris and gluteus medius
detach rectus femoris from both its origins
retract rectus femoris and iliopsoas medially and gluteus medius lateral to expose the hip capsule
adduct and externally rotate the hip to place the capsule on stretch
incise capsule with a longitudinal or T-shaped capsular incision
dislocate hip with external rotation after capsulotomy is complete
Dangers
Lateral femoral cutaneous nerve
reaches thigh by passing under inguinal ligament
the course is variable and the LFCN can be seen passing medial or lateral to ASIS
injury may lead to painful neuroma or decreased sensation on lateral aspect of thigh
Femoral nerve
should remain protected as long as you stay lateral to sartorius muscle
Ascending branch of lateral femoral circumflex artery
be sure to ligate to prevent excessive bleeding
What two nerves make up the internervous plane in the Smith-Petersen anterior hip approach?
CORRECT
The anterior Smith-Petersen hip approach uses the superficial internervous plane between the sartorius (femoral nerve) and the tensor fascia latae (superior gluteal nerve). The deep plane for access to the hip joint capsule uses the same internervous plane but is between the rectus femoris (femoral nerve) and the gluteus medius (superior gluteal nerve). In this approach to the hip, one must be conscious to avoid damaging the lateral femoral cutaneous nerve.
The ascending branch of the lateral femoral circumflex artery is at risk with which of the following surgical approaches?
The ascending branch of the lateral femoral circumflex artery is at risk during the Smith-Petersen approach to the hip. In this approach, an internervous interval between the femoral nerve (sartorius, superficial; rectus femoris, deep) and superior gluteal nerve (tensor fascia latae, superficial; gluteus medius, deep) is utilized.
The ascending branch of the lateral femoral circumflex artery runs proximally in the internervous plane between the two deep muscles.