scholarly journals Zurich Cementless Dual Mobility Cup for Canine Total Hip Prosthesis: Implant Characteristics and Surgical Outcome in 105 Cases

Author(s):  
Otto I. Lanz ◽  
Ida Forzisi ◽  
Aldo Vezzoni

AbstractDislocation after total hip arthroplasty (THA) remains a troublesome complication, and a source of frustration for the owner and the surgeon. The dislocation rate of hip prostheses in dogs is reported to range from 4 to 15%, representing the most common short-term complication. This is especially true in large and giant breed dogs, usually requiring revision surgery. With the increase in the number of THA being performed in veterinary surgery, reducing or preventing complications such as postoperative THA dislocation will be of paramount importance. The Zurich cementless dual mobility (DM) system allows impingement-free range of angulation of 80 to 132 degrees between the ceramic head and the polyether ether ketone (PEEK) cup when combined with the range of the PEEK cup in the outer metal cup. In this article, we review the use of the DM cup in THA in large and giant breed dogs, in terms of its history, biomechanics, outcomes and complications based on 105 cases.

1994 ◽  
Vol 4 (2) ◽  
pp. 69-74
Author(s):  
P. Farsetti ◽  
R. Caterini ◽  
V. Barletta ◽  
A. E. Guarnieri ◽  
E. Ippolito

Thirty uncemented porous-coated anatomic (PCA) total hip prostheses were implanted in 27 patients. The average age at the time of surgery was 54 years, and the average follow-up was 4.5 years. The average hip rating score was 88 points. Three patients had thigh pain at follow-up and fifteen had a mild limp, related to a weakness of the gluteus medius and minimus. On radiographic examination, we observed a good bone ingrowth of the implant in all patients. No aseptic loosening was radiographically demonstrated. No relationship was found between pain in the thigh and the various radiographic parameters studied (ra-diodense lines, sclerosis, varus position of the stem).


Author(s):  
Hiroyuki Oonishi ◽  
Hironobu Oonishi ◽  
Sok Chol Kim ◽  
Shingo Masuda ◽  
Masaru Ueno ◽  
...  

1988 ◽  
Vol 29 (5) ◽  
pp. 551-553 ◽  
Author(s):  
K. Herrlin ◽  
H. Pettersson ◽  
G. Selvik ◽  
L. Lidgren

Impingement of the neck of the stem on to the rim of the socket may cause dislocation of the total hip prosthesis. The role of femoral anteversion in the occurrence of such impingement was analyzed in a clinical material of total hip prostheses with and without dislocation. A low femoral anteversion was linked to a clinically relevant reduction of the range of motion due to impingement and dominated in the group with dislocations. Impingement is minimized by inserting the femoral component in 10° to 20° of anteversion.


1988 ◽  
Vol 29 (3) ◽  
pp. 357-361 ◽  
Author(s):  
K. Herrlin ◽  
H. Pettersson ◽  
G. Selvik

A comparison of two- and three-dimensional methods for the determination of the orientation of total hip prostheses was made in a group of 57 patients. The acetabular inclination and the collum-diaphyseal angle measured on a.p. projections (2-D) were adequate in most cases for assessing how vertically the prosthetic component was inserted, but in individual cases with a high degree of version these measurements could be misleading. Anteversion measured in the transverse plane (2-D) was more sensitive to errors than planar anteversion measured as a rotation around the longest diameter of the ellipsoid projection of the acetabular opening, but it gave a rough estimate of the relation of the prosthetic components. Determination of the spatial (3-D) orientation of the components provides a precise estimate of the component relations.


2007 ◽  
Vol 361-363 ◽  
pp. 1303-1306
Author(s):  
Hiroyuki Oonishi Jr. ◽  
Hironobu Oonishi ◽  
Sok Chol Kim ◽  
Shingo Masuda ◽  
Masaru Ueno ◽  
...  

In total hip prosthesis (THP), we have been using alumina ceramic femoral heads to reduce polyethylene debris and the modified cementing technique, which was named “interface bioactive bone cement (IBBC)” method to improve implant fixation. In this study, we investigated the long-term clinical performance of THPs with an alumina ceramic head and IBBC method. From 1986 to 1988, 285 joints (215 patients) were operated on by a senior surgeon, and 265 joints (192 patients) could be followed up. The presence of radiolucent lines, loosening, osteolysis and ultrahigh-molecular-weight polyethylene (UHMWPE) socket wear were observed. In IBBC, a radiolucent line appeared as a ’space’, and loosening appeared as a ’separation’ between the HA layer and the cement. A ‘space’ appeared in 3 joints (1.4%) on the acetabulum and in 4 joints (1.8%) on the femur, while a ‘separation’ appeared in 3 joints (1.4%) on the acetabulum. Osteolysis was noted in 1 joint (0.5%) on the acetabulum and in 2 joints (0.9%) on the femur. No revision surgery was required. In our previous study, we reported that the thickness of the socket affected its clinical wear rate and that the wear rate of sockets with an alumina ceramic head was 20% lower than that of sockets with a metal head. By reducing wear debris through the use of ceramic heads, osteolysis could be reduced. Long-term fixation of THPs to the bone has been achieved by using IBBC. Thus, the long-term clinical results of THPs with an alumina head that were fixed using IBBC were excellent.


2017 ◽  
Vol 41 (3) ◽  
pp. 595-598 ◽  
Author(s):  
Sarunas Tarasevicius ◽  
Alfredas Smailys ◽  
Kazimieras Grigaitis ◽  
Otto Robertsson ◽  
Justinas Stucinskas

1988 ◽  
Vol 29 (6) ◽  
pp. 701-704 ◽  
Author(s):  
K. Herrlin ◽  
G. Selvik ◽  
H. Pettersson ◽  
L. Lidgren

In a clinical material of total hip prostheses, a study was performed of the range of femoral motion until impingement occurred between the neck of the femoral stem and the rim of the acetabular socket. The results were compared with the physiologic range of motion, and the clinically relevant motion restriction was measured. Restriction was most common in flexion. There was a correlation between the prosthetic design and the restriction due to impingement.


Author(s):  
I. Essefi ◽  
H Hakkouna ◽  
G Ouenzerfi ◽  
G Mollon ◽  
S. Hamza ◽  
...  

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