slocum style tpo/ dpo plates - non-locking and locking

Vi's Slocum style TPO/DPO plates have the same lay-out as the original Slocum plate and are available in non-locking and locking variants. The non-locking versions feature round non-locking holes and DCP holes like the original Slocum plate. The locking version features three parallel stacked locking holes caudally (will accept cortical or locking screws), one DCP hole for compression on the cranial segment permitting osteotomy compression and two parallel stacked locking screws cranially.
In stock
SKU
SLO-1552
non locking slocum style tpo/ dpo plate 20mm left
(exclu. VAT)
SKU: 09910320L
non locking slocum style tpo/ dpo plate 20mm right
(exclu. VAT)
SKU: 09910420R
non locking slocum style tpo/ dpo plate 25mm left
(exclu. VAT)
SKU: 09910525L
non locking slocum style tpo/ dpo plate 25mm right
(exclu. VAT)
SKU: 09910625R
non locking slocum style tpo/ dpo plate 30mm left
(exclu. VAT)
SKU: 09910730L
non locking slocum style tpo/ dpo plate 30mm right
(exclu. VAT)
SKU: 09910830R
locking slocum style tpo/ dpo plate 20mm left
(exclu. VAT)
SKU: 09920320L
locking slocum style tpo/ dpo plate 20mm right
(exclu. VAT)
SKU: 09920420R
locking slocum style tpo/ dpo plate 25mm left
(exclu. VAT)
SKU: 09920525L
locking slocum style tpo/ dpo plate 25mm right
(exclu. VAT)
SKU: 09920625R
locking slocum style tpo/ dpo plate 30mm right
(exclu. VAT)
SKU: 09920830R
locking screw drill guide f/ 3.5mm xl
(exclu. VAT)
SKU: LSDG35XL
Triple pelvic osteotomy (TPO) was described by Barclay Slocum in 1986 as a means to improve dorsal acetabular cover of the femoral head, reducing dorsal hip subluxation and damage to the dorsal acetabular rim. Performed early enough, TPO helps to mitigate progression of degenerative joint disease and maximises hip congruity and surgery is typically performed between five to eight months of age. Different methods can be used to assess the amount of correction required. Candidates should ideally have no evidence of osteo-arthritis and an intact dorsal acetabular rim (DAR). The quality of clunk when performing the Ortalani test gives an impression of the quality of the dorsal acetabular rim. When testing hip instability using the Ortalani test, suitable candidates should have angle of reduction not exceeding 30-35˚. Dorsal Acetabular Rim Skyline radiographs are used by some surgeons to better define the integrity of the DAR and to provide additional information for planning the extent of a correction. TPO involves cutting the ilium, ischium and pubis to free the acetabular segment. The acetabular segment is rotated ventrally and the ilial osteotomy is plated to maintain rotational correction. The pubic osteotomy may be wired to improve stability, though this is not always very affective and has largely been dropped. TPO had fallen out of favour with many surgeons because of a number of factors including the difficulty in diagnosing dogs early enough that degenerative changes are not already present, that results can be sub-optimal if the envelope is pushed to include dogs that are borderline of the inclusion criteria, plus the improvements in outcome with total hip replacement providing preferable alternative options for many cases. Recently, the procedure has been refined in an attempt to create a more stable construct with less post-operative implant failure problems. The advent of locking implants including locking TPO plates has improved construct stability and reduced complications such as implant loosening and screw pull-out. Performing a double pelvic osteotomy (DPO) where only the ilium and pubis are cut, and the ischium remains intact, is less de-stabilising to the pelvis than TPO. The technique was first described at ESVOT in 2006 following in-vitro studies by P. Haudiquet and J. Guillon and was followed by publication of a clinical case series by Aldo Vezzoni et al in VCOT in 2010. In contrast to TPO, DPO creates quite a lot of tension in the pelvis as the acetabular segment is twisted outwards, and achieving the correct amount of rotation can be challenging. Due to the influence of these torsional forces, it is suggested that a correction of an additional 5˚ on TPO be performed. Locking implants are particularly helpful in managing the increased forces of DPO. An intermediate option is to perform a modified TPO or a 2.5 pelvic osteotomy. This is half-way between the DPO and the TPO, whereby an incomplete osteotomy of the ischium – only the dorsal ischial cortex is cut. This reduces the torsional forces inherent in DPO without as much destabilisation of the pelvis as TPO. A stepped implant minimising issues relating to pelvic narrowing. The original Slocum plate was designed for 3.5mm non-locking screws with three screw-holes on either side of the iliac osteotomy and a small hole on the caudal part of the plate for the addition of a cerclage wire. Veterinary Instrumentation Slocum style TPO/DPO plates have the same lay-out as the original Slocum plate and are available in non-locking and locking variants. The non-locking versions feature round non-locking holes and DCP holes like the original Slocum plate. The locking version features three parallel stacked locking holes caudally (will accept cortical or locking screws), one DCP hole for compression on the cranial segment permitting osteotomy compression and two parallel stacked locking screws cranially. The caudal part of both plate styles has a hole for additional cerclage wire fixation.