🔍 Key Findings

• Cranial drawer (CD), tibial compression (TCT), and tibial pivot compression test (TPCT) showed 100% sensitivity and specificity in differentiating intact from CCL-deficient stifles in this ex vivo model.
• TPCT elicited the highest cranial tibial translation (CTT) and internal tibial rotation, though differences in rotation did not reach statistical significance.
• Inter- and intraobserver agreement for CTT was excellent across all tests (ICC >0.9).
• Rotation and force application had greater variability, particularly with less experienced observers and during CD.
• Forces applied during CD were significantly higher in intact limbs and correlated with observer experience.
• Subjective CTT estimates strongly correlated with objective kinematic measurements (r = 0.895), with a median absolute error of 1.31 mm.
• TPCT may be particularly useful for assessing rotational instability, mimicking the pivot-shift test used in human ACL exams.
• Study supports development of a grading system for manual laxity testing, especially in acute CCLR cases.

🔍 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

• Transecting the CCL remnant during TPLO did not reduce patellar ligament thickening (PLT) at any measured point (proximal, mid, distal).
• Transection also failed to reduce postoperative patellar ligament shortening (PLL) at 6 weeks.
• Both groups (transected vs non-transected) showed significant thickening and shortening, with greatest PLT increase at the midpoint.
• Increased PLT was positively correlated with tibial plateau rotation (p = 0.02) and postoperative TPA (p = 0.04).
• No correlation between TT-O (tibial tuberosity width index) and PLT, suggesting narrow osteotomies did not influence PLT in this population.
• Partial CCL rupture was not significantly protective; dogs with partial tears still developed ligament thickening.
• Post-TPLO mid-patellar ligament thickening may relate to Gelpi retractor placement and osteotomy mechanics rather than CCL status.
• Authors do not recommend CCL transection during TPLO to prevent desmitis, citing possible increased instability and degeneration.

🔍 Key Findings

• Extreme brachycephalic breeds (EBBs) presented more acutely and at younger ages, most often with neurological signs compared to other breeds.
• Preoperative signs such as facial nerve paresis, vestibular syndrome, and Horner’s syndrome were significantly more common in EBBs.
• EBBs showed more severe imaging findings, including higher rates of otitis interna (46.3% vs. 8.5%) and brainstem changes (17.5% vs. 3%).
• Intraoperative complications were more frequent in EBBs (11.1% vs. 5.3%), but this difference did not reach statistical significance (p = .078).
• Perioperative complication rates did not differ significantly between EBBs and other breeds (23.5% vs. 29.3%).
• Surgical time was significantly longer in EBBs (median 115 vs. 95 minutes; p = .011).
• MRI or combined CT/MRI were more frequently used in EBBs, likely due to the higher prevalence of neurological signs.
• Despite anatomical challenges, complication rates in EBBs were comparable, supporting TECA-LBO safety in these breeds.

🔍 Key Findings

Sample: 21 cats (10 control, 11 affected); 14 normal limbs vs 18 with MPL (MPL II: 7, MPL III: 11).

Significantly different CT measurements in MPL vs control:

• aLDFA: MPL II > control and MPL III (p = 0.014)
• FTW: MPL III > control (p = 0.021)
• FTD: control > MPL II and III (p < 0.001)
• TTA: MPL II and III had increased external tibial torsion vs control (p < 0.001)
• fPL and PV: MPL III cats had longer and more voluminous patellae

No significant differences in AA, mMPTA, TTD, fPW, aPH.
Patella width exceeded trochlear width in all groups.
Authors suggest femoral and tibial angular correction may not be indicated in most feline MPL II–III cases.
Soft tissue techniques and trochleoplasty warrant further investigation.
CT method: Intraobserver ICC good in 64%, interobserver poor in 36% of metrics.

🔍 Key Findings

• CBLO was effective for stifle stabilization in skeletally immature dogs with CrCL injuries, avoiding disruption of proximal tibial growth plates.
• Radiographic union of the osteotomy occurred in a mean of 6 weeks (range: 4–8 weeks), indicating rapid bone healing.
• Full limb function was restored in all cases by long-term follow-up (mean 23 months), including dogs with initial complications.
• Two dogs developed 19° valgus deformities due to screw interference with the proximal tibial physis; both were corrected surgically with return to function.
• One dog developed 10° recurvatum due to over-rotation of the tibial plateau, but retained full function without revision.
• CCS (countersink compression screw) caused early apophyseal closure in older dogs but had no adverse clinical effects.
• In contrast, K-wire or plate-only fixation preserved open apophysis, suggesting implant choice may influence growth.
• No meniscal injuries were observed, and all CrCL injuries were managed arthroscopically — 6 complete, 6 partial, 4 avulsions.

🔍 Key Findings

• TPLO with the contoured saw guide achieved more accurate osteotomy angles for both inclination and torsion in bone models and cadaveric limbs (p < .05).
• Medial cortical damage was significantly lower with the contoured guide (247 vs. 1866 pixels in bone models; p < .001).
• No significant difference in eccentricity (distance between actual and intended osteotomy center) was found between groups.
• Postoperative tibial plateau angle (TPA) was similar between groups (6.4° vs. 7.6°; p = .15), though both were slightly higher than the target of 6°.
• Deviation in medial mechanical proximal tibial angle (mMPTA) showed no significant group difference; valgus deformity occurred in both.
• Osteotomy and device application times were similar between the contoured guide and jig-assisted TPLO.
• The contoured guide eliminated the need for proximal jig pin, potentially reducing intra-articular pin risk.
• The guide's multiple pin fixation system improved stability and alignment, supporting safer osteotomy on curved tibial surfaces.

🔍 Key Findings

• Bilateral radial head OCD lesions were identified in a 6-month-old English Bulldog with elbow lameness.
• Medial arthroscopic portals allowed only partial visualization of radial head lesions, insufficient for treatment.
• Lateral arthroscopy portals provided excellent access for fragment removal and abrasion arthroplasty.
• Histopathology confirmed OCD, showing cartilage degeneration and retained cartilaginous cores.
• Dog showed complete resolution of lameness and no elbow pain at 5 months post-op.
• Lesions were caudolateral on the radial head, with discoid elevation of cartilage and clefts.
• Lateral approach avoids major neurovascular structures, reducing iatrogenic risk.
• The authors suggest lateral elbow arthroscopy may have broader indications, including for medial compartment disease or synovial biopsies.

🔍 Key Findings

• CBLO reduced tibial plateau angle (TPA) from a mean of 28.1° to 9.7°, aligning with its goal of flattening the tibial slope.
• CBLO eliminated cranial tibial translation (CTT) following CCL transection and meniscal release at all angles except 140° without hamstring load.
• Hamstring loading (20% quadriceps load) significantly reduced or delayed the onset of CTT, improving stifle stability.
• Medial meniscus was confirmed as a secondary stabilizer; its release (MMR) caused more CTT than CCLx alone.
• PTA (patellar tendon angle) increased with joint extension; CBLO shifted the PTA curve lower and parallel to intact values, suggesting effective flexion of the joint.
• Combined CBLO and hamstring loading resulted in the most stable joints, especially from 50° to 135° joint angles.
• Residual CTT occurred in CBLO-only limbs at higher extension angles (e.g., 140°), but hamstring load mitigated this.
• Stifle stability post-CBLO is multifactorial, depending on joint angle, meniscal integrity, and hamstring activation.

🔍 Key Findings

• Medial meniscus injury (MMI) occurred in 36.3% of stifles with CrCLR in toy breed dogs (<5 kg)
• Complete CrCLR was significantly associated with MMI (15.3% of complete vs. 3.4% of partial)
• Severe lameness (grade 3) increased the likelihood of MMI compared to mild lameness (grade 1)
• Higher body weight, even within the toy breed range, was positively associated with MMI
• Yorkshire Terriers had the highest MMI incidence (55.6%), but this was not a significant independent factor due to multicollinearity
• Arthroscopy identified more meniscal damage (including small radial tears and bucket-handle lesions) than gross examination might detect
• MMI was classified as mild (radial tear) or severe (bucket-handle or flap) with implications for partial meniscectomy
• Arthroscopy was used in all cases, underscoring its utility in small-breed stifle assessment