🔍 Key Findings

• Dogs with MPL had significantly shallower femoral trochlear grooves compared to controls, based on CT-measured femoral trochlear groove angle (FTGA).
• FTGA >134° in small breeds (SB) and >128° in medium/large breeds (MLB) were associated with MPL and can serve as surgical thresholds for considering trochleoplasty.
• FTA and FTRIA measurements were less reliable, showing lower sensitivity/specificity than FTGA.
• Inter-rater reliability for FTGA was excellent (ICC > 0.9), supporting its use in clinical decision-making.
• FTGA differed significantly between SB and MLB dogs, suggesting anatomical variation influences MPL predisposition.
• Dogs with MPL but with FTGA below threshold may not benefit from trochleoplasty, supporting individualized surgical planning.
• CT provides more precise and reproducible evaluation of trochlear morphology than radiography or ultrasound.
• The study introduces a CT protocol using P25 and P50 reference points for consistent FTGA measurement.

🔍 Key Findings

• Needle arthroscopy (NA) had 95% sensitivity and 100% specificity for diagnosing medial meniscal tears in dogs with CCLR.
• NA missed 1 medial and 1 lateral meniscal tear, both nondisplaced and stable.
• Visibility of all meniscal horns was significantly lower with NA compared to standard arthroscopy (SA) (P < .005 for all horns).
• Probing the caudal horn of the lateral meniscus was significantly more difficult with NA (P = .0017), though medial horn probing was similar.
• Mean NA procedure time was 8 ± 3 minutes, significantly shorter than SA (15 ± 9 min, P = .0041).
• No increase in lameness observed after NA, indicating minimal procedural morbidity.
• NA was performed under sedation in most dogs, though 10/26 required additional chemical restraint or short anesthesia.
• NA was most accurate for displaced vertical longitudinal tears, with all 14 correctly identified; one stable tear and a lateral tear were missed.

🔍 Key Findings

• TPLO alone failed to neutralize rotational instability under tibial pivot compression (TPT), despite a negative TCT.
• TPLO combined with lateral augmentation (TPLO-IB) restored both craniocaudal and rotational stability to near-intact levels.
• Cranial tibial translation was 6× greater after TPLO vs intact stifles when tested with TPT (p < .001).
• No significant difference in cranial tibial translation or internal rotation between intact stifles and TPLO-IB group during TCT, eTPT, or iTPT.
• TPLO-IB did not overconstrain the stifle, avoiding excessive external rotation.
• External tibial rotation (eTPT) was more sensitive than TCT in detecting persistent instability after TPLO.
• Excellent intraobserver reliability for both eTPT and iTPT (ICC > 0.9).
• Study supports intraoperative use of TPT to identify cases needing additional rotational stabilization.

🔍 Key Findings

• Plate–Pin TTT fixation resolved MPL in 64/65 stifles with low recurrence (1.5%) and good lameness outcomes postoperatively.
• Complication rate was 21.5% (14/65 stifles), mostly minor (57%); major issues included pin migration, fracture, or capsular failure.
• Pin-related issues accounted for 8 of 20 total complications, highlighting implant refinement is needed.
• No avulsions, TT fixation failures, or luxation recurrence occurred in cases where surgical technique was followed precisely.
• Surgical deviations increased complication risk 11.3× (p < 0.05), suggesting adherence to protocol is critical.
• Single-session bilateral MPL surgery had comparable complication rate (3/20) to unilateral surgery (11/45).
• Screw breakage occurred in 3 cases, suggesting at least 3 screws may be needed for secure TT fixation.
• Authors suggest temporary pin fixation and later removal may reduce complications, though prospective studies are needed.

🔍 Key Findings

• A linear relationship was observed between wedge angle and tibial plateau angle (TPA) correction across all four CCWO techniques.
• All techniques produced predictable TPA corrections using linear regression-derived equations, allowing wedge angle extrapolation to achieve a target postoperative TPA of 5°.
• TLA shift (tibial long axis) increased with wedge angle and influenced final TPA; greatest in Frederick & Cross method.
• Tibial shortening (mTL%) varied by technique, being most severe (up to 40.9%) in traditional Slocum & Devine CCWO and least in newer techniques (7.5–12%).
• The Oxley mCCWO technique showed lower TLA shift compared to the Frederick & Cross and Christ techniques, though similar to Slocum & Devine; tibial shortening was more pronounced than other modified techniques at wedge angles ≤40°.
• Techniques varied in craniocaudal translation and wedge apex positioning, influencing planning accuracy and mechanical axis alignment.
• The corrective wedge angle equations reliably predicted TPA within 4–6° across varied tibial conformations.
• The study supports equation-based planning over static TPA–5° subtraction to reduce risk of under- or over-correction.

🔍 Key Findings

• Arthroscopic meniscal suturing was performed in 43 client-owned dogs, involving 44 meniscal repairs (one dog was bilateral). All injuries involved the caudal horn of the medial meniscus and were associated with cranial cruciate ligament (CrCL) disease.
• All dogs underwent simultaneous TPLO, with some also receiving an internal brace (IB). Most repairs used simple vertical mattress sutures.
• The overall complication rate was 34.1% (15/44). Most complications were attributed to the TPLO/TPLO+IB and did not compromise the meniscal repair outcome.
• No median time to “acceptable” or “full” function was reported, but most dogs showed improvement in lameness and LOAD scores (p < .001), indicating good to excellent outcomes.
• Meniscal repair success rate was 88% (38/44), with TPLO + IB outperforming TPLO-only (93.3% vs 71.4%). Follow-up was performed at 8 weeks (40 dogs) and 6 months (16 dogs).
• Six failures occurred, all managed with arthroscopic meniscectomy, leading to normal activity in those dogs. Two IB-associated failures led to CrCL instability.
• The authors concluded the technique was safe, practical, and effective, with a reasonable complication rate.
• The findings support arthroscopic suturing as a feasible alternative to meniscectomy or meniscal release, offering long-term benefits for preserving the meniscus.

🔍 Key Findings

• The CORA-based cranial closing wedge ostectomy (CCWOCORA) consistently achieved the target postoperative TPA of 5° across all tibial morphologies.
• CCWOCORA produced significantly less variability in postoperative TPA compared to other methods (TPA range: 5.00–5.00°; p < .001).
• Mechanical axis advancement (MAA) was precisely controlled at 3° in CCWOCORA, leading to greater surgical predictability.
• Other techniques (e.g., CCWO_TPA, CCWO_TPA–5, CCWO_ISO) showed greater variance in TPA, MAA, and tibial length.
• In small-breed dogs, increasing the MAA from 3° to 5° did not affect TPA outcomes, but increased proximal bone stock, improving feasibility.
• Wedge angles and tibial length changes varied by method, but CCWOCORA maintained length better than TPA-based methods.
• The technique allows preoperative planning of both desired MAA and TPA, enhancing predictability and customization.
• CORA methodology enables precise geometric correction and alignment of mechanical axes, reducing reliance on trial-and-error alignment.

🔍 Key Findings

Study type: Cadaveric stifle arthroscopy in large breed dogs (n=12 joints from 6 dogs)
Goal: Describe and assess the proximal lateral portal for insertion of a Ventura stifle thrust lever (VSTL)
Main results:

• No damage to the long digital extensor tendon (LDE) with this portal
• VSTL could be placed without removing the arthroscope
• Portal creation time ~37 seconds (faster than previously reported)

Cartilage impact:

• Superficial iatrogenic articular cartilage injury (IACI) present in all specimens
• No difference in IACI between 5- and 10-minute lever durations
• Zone 4 (lateral femoral condyle) had significantly more damage than zones 1–3 (p < .05)

Conclusion: Portal was safe, repeatable, minimally invasive, and did not increase cartilage damage with up to 10-minute lever use

🔍 Key Findings

• 3D-printed patient-specific guides (PSGs) improved tibial cut alignment in the frontal plane compared to generic guides (mean error 1.03° vs 2.41°, p = .036).
• All tibial cuts using PSGs were within 3° of target alignment, while 2/8 of the generic group were outliers.
• PSGs significantly improved sagittal alignment of both distal (p = .018) and cranial (p = .043) femoral cuts.
• No significant difference was found in varus-valgus femoral alignment or closing angle between PSG and generic guide groups.
• Tibial sagittal slope alignment was not significantly different between groups.
• PSGs provided better intraoperative usability, including improved visibility, no loosening, and ease of use.
• Femoral sizing and component fit were equivalent between PSGs and generic guides, ensuring proper prosthesis alignment.
• PSGs may offer training advantages for novice surgeons, especially in anatomically complex or deformed joints.

🔍 Key Findings

• Needle arthroscopy (NA) had 95% sensitivity and 100% specificity for diagnosing medial meniscal tears in dogs with CCLR.
• NA missed 1 medial and 1 lateral meniscal tear, both nondisplaced and stable.
• Visibility of all meniscal horns was significantly lower with NA compared to standard arthroscopy (SA) (P < .005 for all horns).
• Probing the caudal horn of the lateral meniscus was significantly more difficult with NA (P = .0017), though medial horn probing was similar.
• Mean NA procedure time was 8 ± 3 minutes, significantly shorter than SA (15 ± 9 min, P = .0041).
• No increase in lameness observed after NA, indicating minimal procedural morbidity.
• NA was performed under sedation in most dogs, though 10/26 required additional chemical restraint or short anesthesia.
• NA was most accurate for displaced vertical longitudinal tears, with all 14 correctly identified; one stable tear and a lateral tear were missed.