Effect of proximal abducting ulnar osteotomy (PAUL) on frontal plane thoracic limb alignment: An ex vivo canine study

2020 ◽  
Vol 49 (7) ◽  
pp. 1437-1448
Author(s):  
Alexandra Amadio ◽  
Kayla M. Corriveau ◽  
Bo Norby ◽  
Timothy R. Stephenson ◽  
W. Brian Saunders
Keyword(s):  
Ex Vivo ◽  
Frontal Plane ◽  
Limb Alignment ◽  
Ulnar Osteotomy ◽  
Thoracic Limb ◽  
Canine Study

The Effect of Sliding Humeral Osteotomy (SHO) on Frontal Plane Thoracic Limb Alignment: An Ex Vivo Canine Cadaveric Study

2016 ◽  
Vol 45 (8) ◽  
pp. 1095-1107 ◽  
Author(s):  
Adam H. Breiteneicher ◽  
Bo Norby ◽  
Kurt S. Schulz ◽  
Sharon C. Kerwin ◽  
Don A. Hulse ◽  
...  
Keyword(s):  
Ex Vivo ◽  
Frontal Plane ◽  
Cadaveric Study ◽  
Limb Alignment ◽  
Thoracic Limb

Effect of Proximal Abducting Ulnar Osteotomy (Paul) on Thoracic Limb Alignment in a Canine Ex Vivo Simulated Weight-Bearing Model

2018 ◽  
Vol 31 (S 02) ◽  
pp. A1-A25
Author(s):  
Kayla Corriveau ◽  
Alexandra Amadio ◽  
Bo Norby ◽  
Adam Breiteneicher ◽  
W. Saunders
Keyword(s):  
Ex Vivo ◽  
Weight Bearing ◽  
Limb Alignment ◽  
Ulnar Osteotomy ◽  
Thoracic Limb

Thoracic Limb Alignment in Healthy Labrador Retrievers: Evaluation of Standing Versus Recumbent Frontal Plane Radiography

2014 ◽  
Vol 43 (7) ◽  
pp. 791-803 ◽  
Author(s):  
Zachary J. Goodrich ◽  
Bo Norby ◽  
Bunita M. Eichelberger ◽  
Wade O. Friedeck ◽  
Hollye N. Callis ◽  
...  
Keyword(s):  
Frontal Plane ◽  
Limb Alignment ◽  
Thoracic Limb ◽  
Labrador Retrievers

Tibial tuberosity transposition-advancement for lateralization of the tibial tuberosity: An ex vivo canine study

2014 ◽  
Vol 27 (04) ◽  
pp. 271-276 ◽  
Author(s):  
N. Bertollo ◽  
W. Walsh ◽  
K. Voss ◽  
M. Newman
Keyword(s):  
Computed Tomography ◽  
Cyclic Loading ◽  
Tibial Plateau ◽  
Ex Vivo ◽  
Peak Load ◽  
Tibial Tuberosity ◽  
Tension Band ◽  
Tension Band Wiring ◽  
Load To Failure ◽  
Canine Study

SummaryObjectives: To evaluate the degree of lateralization achievable and strength of tibial tuberosity transposition and advancement (TTTA) relative to pin and tension band wiring (PTBW) for lateral tibial tuberosity transposition.Methods: Six pairs of cadaveric tibiae were used. Tibial tuberosity position was determined with computed tomography (CT); bones were then randomly assigned into TTTA and PTBW groups. The PTBW group had a tibial tuberosity osteotomy and fixation with pin and tension band wiring. The TTTA group had a tibial tuberosity advancement performed with lateralization of the tibial tuberosity by 50% of cage depth, using spacers on the cranial cage screw. Postoperative CT images showed lateralization and craniocaudal deviation. Single axial distractive loading was applied to the patella at 90° to the tibial plateau, and peak load, energy, and stiffness were calculated.Results: There were significant differences in lateralization (PTBW: 67.92 ± 5.1 %; TTTA: 88.51 ± 5.5 %) (p = 0.0173) and craniocaudal deviation (PTBW: –8.30 ± 1.4 %; TTTA: 6.83 ± 0.6) (p = 0.0001). There were no significant differences in peak load to failure (N) (PTBW: 1448 ± 121; TTTA: 1597 ± 43) (p = 0.4541), energy to failure (N/mm) (PTBW: 15013 ± 2719; TTTA: 17314 ± 887) (p = 0.646), or stiffness (N/mm)(PTBW: 102.8 ± 4.7; TTTA: 92.9 ± 4.8) (p = 0.2716).Clinical significance: The TTTA was more effective at lateralization of the tibial tuberosity, and of comparable strength to PTBW. Greater support of the osteotomized fragment with TTTA may resist cyclic loading, and requires evaluation.

Validity, Reliability, and Normative Values for Clinically-Assessed Frontal Tibial Orientation as a Measure of Varus-Valgus Knee Alignment

2017 ◽  
Vol 22 (2) ◽  
pp. 29-33 ◽  
Author(s):  
David Werner ◽  
John Willson ◽  
Richard Willy ◽  
Joaquin Barrios
Keyword(s):  
Interrater Reliability ◽  
Normal Values ◽  
Frontal Plane ◽  
Normative Values ◽  
Valgus Knee ◽  
Validity And Reliability ◽  
Limb Alignment ◽  
Knee Alignment ◽  
Clinical Methods ◽  
Development And Management

Frontal plane knee alignment can influence the development and management of various knee pathologies. Valid and reliable clinical methods for assessment are needed. The primary purposes of this study were to assess the validity and reliability of inclinometer-based frontal plane tibial orientation as a limb alignment measure, and secondarily to establish normal values in healthy individuals. Frontal tibial orientation was validated per moderately strong correlation to radiographic knee alignment. Intra- and interrater reliability were excellent. The normative mean was approximately 7°. In summary, inclinometer-based frontal tibial orientation is a valid and reliable clinical measure of frontal plane knee alignment.

scholarly journals Treatment of Radius Curvus in a Young Dog with Association of Radial Physeal Stapling, Ulnar Ostectomy and Transarticular Dynamic External Fixator Techniques

2021 ◽  
Vol 49 ◽  
Author(s):  
Fernanda Simon ◽  
Leonardo Augusto Lopes Muzzi ◽  
Larissa Teixeira Pacheco ◽  
Ruthnea Aparecida Lázaro Muzzi ◽  
Laura Lourenço Freitas ◽  
...  
Keyword(s):  
Distal Radius ◽  
Elbow Joint ◽  
Surgical Techniques ◽  
Current Case ◽  
Oblique Osteotomy ◽  
Ulnar Osteotomy ◽  
Premature Closure ◽  
Thoracic Limb ◽  
History Of ◽  
Caudal Approach

Background: Radius curvus is a clinical manifestation of the premature closure of the distal ulnar physis and the most common physeal disease in dogs, representing 63% of all physeal injuries. There are few reports indicating the technique of stapling for treatment of radius curvus in squeletically immature dogs. The aim of this study is to report a case of radius curvus in a young dog successfully treated with a combination of 3 surgical tecniques: 1- Stapling the medial and cranial portions of the distal radial physis; 2- Oblique osteotomy of the proximal ulna and ostectomy of the distal ulna, and 3- Dynamic external skeletal fixation in the elbow joint.Case: A 5-month-old female dog was referred to the University Veterinary Hospital with a history of left thoracic limb deformity for 2 weeks. There was a history of possible traumatic event on the front limb, in addition to providing nutritional supplements daily. In the radiographic evaluation the changes were identified in the left thoracic limb: shortening of the ulna, procurvatum and medial angulation of the distal radius, increased joint space and articular incongruity of the elbow joint. The dog was subjected to surgical treatment by the combination of three main surgical techniques. For the stapling of the distal radial physis the surgical approach on the cranial-medial surface of the distal radius was made. Two surgical staples were positioned in the distal radial physis. Thereafter a caudal approach was made to the distal region of the ulnar diaphysis for the distal ostectomy of the ulna. A bone segment of 1 cm in length of the distal ulnar diaphysis was removed. Another caudal approach was made to the proximal region of the ulnar diaphysis and a proximal oblique osteotomy of the ulna was performed. For the dynamic external skeletal fixation in the elbow joint two Steinmann pins were inserted. The first pin was proximal to the supracondilar foramen of the humerus and the second pin was caudal to the trochlear notch of the ulna, both parallel to the joint surface. To create a dynamic system, the pin tips were connected with elastic rubber bands on the medial and lateral sides of the elbow joint. Clinical and radiographic revaluation were made at 15, 30 and 60 days after surgery. Total correction of the limb deviation was achieved at 60 days postoperative. Two years after the surgical procedure, the owner was contacted and reported that the dog was very well and with no change in the operated limb.Discussion: The most common cause of premature closure of the distal ulnar physis is trauma. Due to the proper conical shape of the distal ulnar physis, there is more predisposition to the compression of the germinative cells in traumatic events, leading to radius curvus disease. Another cause of the radius curvus is the nutritional disbalances. In the reported case the patient had both predisponent factors, although unilateral limb involvement suggested trauma with primary causative agent. The treatment included the interruption of the supplementation of the diet associated with surgical techniques. The stapling of the distal radial physis is usually indicated for mild angular valgus deviation. In the current case the technique was applied with success regardless of the higher grade of radial deviation. Generally, the ulnar ostectomy is preferred to the osteotomy, since it reduces the rate of ulnar osteosynthesis, ensuring that the restrictive effect of the ulna upon the radial growth does not restart. In the reported case the ulnar ostectomy was associated with ulnar osteotomy to achieve a more effective result. Furthermore, the proximal ulnar osteotomy is usually indicated when elbow subluxation is present. In the current case the joint congruence was improved with the use of the dynamic external skeletal fixator.

scholarly journals Effects of task and hip-abductor fatigue on lower limb alignment and muscle activation

2021 ◽  
Author(s):  
Rodrigo Rabello ◽  
Camila Nodari ◽  
Felipe Scudiero ◽  
Iury Borges ◽  
Luan Fitarelli ◽  
...  
Keyword(s):  
Lower Limb ◽  
Repeated Measures ◽  
Muscle Activation ◽  
Frontal Plane ◽  
Gluteus Medius ◽  
Limb Alignment ◽  
Lower Limb Alignment ◽  
Before And After ◽  
Hip Abduction ◽  
Hip Abductor

Abstract Purpose Fatigue-induced hip-abductor weakness may exacerbate lower-limb misalignments during different dynamic single-leg tasks. We sought to evaluate the effects of fatigue and task on lower limb kinematics and muscle activation and to find associations between measurements obtained in two tasks. Methods One-group pretest–posttest design. Seventeen healthy adults (9 W) performed the single-leg squat (SLSQUAT) and the single-leg hop (SLHOP) before and after a hip-abduction fatigue protocol. Hip adduction, knee frontal plane projection angle (knee FPPA) and heel inversion displacement were measured during the eccentric phase of the SLSQUAT and the SLHOP, as well as activation of the gluteus medius (GMed), tensor fascia latae (TFL), peroneus longus (PER) and tibialis anterior (TA). Moments and tasks were compared using a repeated-measures two-way ANOVA. Correlation between tasks was evaluated using Spearman’s correlation. Results No differences in kinematics or activation were found between moments. Hip-adduction displacement (P = 0.005), GMed (P = 0.008) and PER (P = 0.037) activation were higher during SLSQUAT, while TA activation was higher during SLHOP (P < 0.001). No differences were found between tasks in knee FPPA and heel inversion. Hip-adduction and knee FPPA were not correlated between tasks, while ankle inversion displacement was positively correlated (rs = 0.524–0.746). Conclusion Different characteristics of SLSQUAT (slower and deeper) seem to have led to increased hip adduction displacement, GMed, and PER activation and decreased TA activation, likely due to higher balance requirements. However, hip-abductor fatigue didn’t influence lower-limb alignment during the tasks. Finally, evaluations should be performed with different single-leg tasks since they don’t give the same lower-limb alignment information.

Sign in / Sign up

Export Citation Format

Share Document