TTA Instrumentation — Tibial Tuberosity Advancement
Tibial Tuberosity Advancement (TTA) is a surgical technique used in veterinary orthopedics to treat cranial cruciate ligament (CCL) rupture in dogs — the canine equivalent of an ACL tear. Rather than reconstructing the torn ligament directly, TTA changes the biomechanics of the stifle (knee) joint by advancing the tibial tuberosity forward, which neutralizes the cranial tibial thrust that causes instability during weight-bearing. It's one of the two most widely used surgical approaches to CCL rupture, alongside TPLO (tibial plateau leveling osteotomy), with the choice between them typically coming down to surgeon preference and specific case factors.
What's in This Collection
The TTA Drill Guide is used to position drill holes accurately before the tibial tuberosity osteotomy cut is made, ensuring the cut and subsequent hardware placement align correctly with the surgical plan. The Depth Gauge TTA (160mm/40mm) measures the advancement distance needed, helping the surgeon select and confirm the correct degree of tuberosity advancement — a measurement that directly affects how much the cranial tibial thrust is neutralized.
How These Instruments Fit the Procedure
Both instruments support the positioning and measurement steps of a TTA procedure rather than the cutting or fixation itself. The drill guide is used early, before the osteotomy cut, to set up accurate pin or hole placement. The depth gauge is used to confirm the advancement measurement matches the cage or spacer size planned for the case, ensuring the final construct achieves the intended biomechanical correction.
Related Instruments
For the broader orthopedic instrumentation a TTA or other stifle procedure requires, browse View All Veterinary Orthopedic Instruments. For bone surface preparation and fixation support, see Bone Rasps and Locking Pliers. For the complete veterinary catalog, visit Veterinary Instruments.
Ordering
Peak Surgicals manufactures and supplies veterinary orthopedic instrumentation in bulk for clinics and distributors worldwide, with international shipping — contact our team for current stock and wholesale pricing.
Frequently Asked Questions
What is TTA surgery used for in dogs?
TTA is used to treat cranial cruciate ligament (CCL) rupture, the canine equivalent of an ACL tear, by advancing the tibial tuberosity to neutralize the cranial tibial thrust that causes knee instability.
What's the difference between TTA and TPLO?
Both treat CCL rupture by changing stifle joint biomechanics rather than reconstructing the ligament directly. TTA advances the tibial tuberosity forward, while TPLO levels the tibial plateau through a rotational cut — the choice between them depends on surgeon preference and case-specific factors.
What does a TTA drill guide do?
It positions drill holes accurately before the osteotomy cut, ensuring correct alignment for the hardware placement that follows.
What does a TTA depth gauge measure?
It measures the tuberosity advancement distance, helping confirm the correct amount of correction and matching it to the appropriate cage or spacer size for the case.
Does this collection include the full TTA implant system?
Based on the products currently listed, this collection covers positioning and measurement instrumentation only — a complete TTA system typically also includes cages or spacers, an osteotomy saw guide, and a fixation plate, which aren't shown here.
