Extracapsular sling technique for treatment of three canine caudoventral hip luxation cases

Abstract

The objective of this study was to report surgical stabilisation of caudoventral coxofemoral luxation by an extra‐articular technique in dogs. Medical records from caudoventral coxofemoral luxations in dogs and cats presented at our institution between January 2012 and December 2020 were reviewed. Caudoventral luxations were relatively rare and were found in one cat and in 13 dogs. Three cases of surgical stabilisation using a ventral coxofemoral approach were reviewed, replacing function of the transverse acetabular ligament using a figure of eight braided suture passed around two pelvic screws and one femoral screw. Functional recovery was obtained in all three cases, without complication or re‐luxation. Extra‐articular stabilisation using a sling implant is a simple, effective method for treatment of caudoventral coxofemoral luxation in dogs.

Caudoventral hip luxation in 160 dogs (2003–2023): A multicenter retrospective case series

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Craniodorsal hip luxation (CdHL) is most common, accounting for 73%-90% of cases, with motor vehicular accidents accounting for 59%-83% of those cases. [1][2][3]5,[7][8][9][10][11]13,15,16 Caudoventral hip luxation (CvHL) is rare and accounts for 1.5%-3.2% of cases. 1,2,[5][6][7][8][9][10][11][12][13] It typically occurs when the pelvic limb abducts.…”

“…[1][2][3]5,[7][8][9][10][11]13,15,16 Caudoventral hip luxation (CvHL) is rare and accounts for 1.5%-3.2% of cases. 1,2,[5][6][7][8][9][10][11][12][13] It typically occurs when the pelvic limb abducts. 4,9,10,12,13 This levers the femoral head through or over the transverse acetabular ligament resulting in stretching/tearing of the ligament of the femoral head and joint capsule.…”

“…1,2,[5][6][7][8][9][10][11][12][13] It typically occurs when the pelvic limb abducts. 4,9,10,12,13 This levers the femoral head through or over the transverse acetabular ligament resulting in stretching/tearing of the ligament of the femoral head and joint capsule. 4,12 Some have speculated that coxofemoral abnormalities and deficient transverse acetabular ligament may contribute, but this is not well-defined, or confirmed with mechanical studies in the literature.…”

“…4,10 Ehmer sling is not recommended because it causes hip abduction and internal rotation; the forces required for reluxation in cases of CvHL. 8 Surgical options for treatment of CvHL include primary capsulorrhaphy, 10,13 prosthetic capsulorrhaphy, 10,13 toggle rod stabilization, [10][11][12][13] suture repair of transverse acetabular ligament and augmentation of transverse acetabular ligament using extracapsular sling, 9,10,13 autogenous iliac shelf graft, 9,10,13 pectineus muscle transfer, 9,10,13 and bone plate augmentation of ventral acetabular rim. 9,10,13 Salvage procedures include femoral head and neck ostectomy and total hip arthroplasty.…”

“…8 Surgical options for treatment of CvHL include primary capsulorrhaphy, 10,13 prosthetic capsulorrhaphy, 10,13 toggle rod stabilization, [10][11][12][13] suture repair of transverse acetabular ligament and augmentation of transverse acetabular ligament using extracapsular sling, 9,10,13 autogenous iliac shelf graft, 9,10,13 pectineus muscle transfer, 9,10,13 and bone plate augmentation of ventral acetabular rim. 9,10,13 Salvage procedures include femoral head and neck ostectomy and total hip arthroplasty. 4,5,13 Current literature describing common patient characteristics, etiology, treatment outcomes and factors associated with successful nonsurgical treatment of CvHL is limited to small case series.…”