Effect of distal ulnar ostectomy on carpal joint stability during weight bearing in the dog

Amsellem, Pierre M.; Young, Aisha N.; Muirhead, Tammy; Pack, LeeAnn; Moak, Peter; Matthews, Andrea R.; Marcellin‐Little, Denis J.

doi:10.1111/vsu.12721

Cited by 2 publications

(9 citation statements)

References 15 publications

(34 reference statements)

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“…In the current study, carpal stability during physiologic weight‐bearing was not assessed; this data was collected as part of a separate study . Horizontal‐beam radiography is not routinely used in assessing weight‐bearing joints in small animal patients.…”

Section: Discussionmentioning

confidence: 99%

“…Limbs were excluded from the study if pathologic or morphologic abnormalities were noted. The proximal brachium to the level of the distal humeral metaphysis was removed to facilitate data collection for a separate study …”

Section: Methodsmentioning

confidence: 99%

“…The distal radioulnar synovial joint and the lateral aspect of the carpal joint capsule were cut during this procedure. As part of a separate study, screws were placed at the caudal proximal aspect of the ulna, an external fixator was placed with pins placed mediolaterally through the distal humeral and distal radial metaphyses, and thin pins were placed as markers into the cranial distal radial metaphysis and the dorsal fourth metacarpal diaphysis. All but one of the surgical implants were removed prior to imaging.…”

Section: Methodsmentioning

confidence: 99%

“…The proximal brachium to the level of the distal humeral metaphysis was removed to facilitate data collection for a separate study. 20…”

Section: Subject Selectionmentioning

confidence: 99%

“…As part of a separate study, 20 screws were placed at the caudal proximal aspect of the ulna, an external fixator was placed with pins placed mediolaterally through the distal humeral and distal radial metaphyses, and thin pins were placed as markers into the cranial distal radial metaphysis and the dorsal fourth metacarpal diaphysis.…”

Section: Surgical Protocolmentioning

confidence: 99%

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Ulnar ostectomy decreases the stability of canine cadaver carpi as assessed with stress radiography

Young

Amsellem

Muirhead

et al. 2018

Vet Radiology Ultrasound

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Distal ulnar ostectomy may be performed palliatively in patients with distal ulnar osteosarcoma. Concurrent arthrodesis of the carpus has been proposed to counteract joint instability following transection of carpal ligaments associated with removal of the distal ulna. The objective of this prospective one group pretest, posttest study was to assess stability of the carpus following distal ulnar ostectomy using pre‐ and postoperative stress radiographic views in a group of canine cadaver limbs. Seven thoracic limbs from six canine cadavers weighing more than 20 kg were obtained. Lateral and dorsopalmar, extended lateral, medial stress, and lateral stress radiographs were made before and after distal ulnar ostectomy. Presurgical canine cadaver carpal angle measurements were as follows (mean ± standard deviation): extension 205.9° ± 5.4; medial stress 25.1° ± 5.7; and lateral stress 13.3° ± 5.2°. Cadaver limb joint angles exceeded those previously reported in live dogs. A significant increase in carpal angle was noted following ulnar ostectomy. The mean increases in carpal angle were as follows: (mean ± standard deviation (95% confidence interval)): extension 6.2° ± 4.9 (2.6–9.8) (P = 0.007); medial stress 3.2° ± 3.0 (1.0–5.5) (P = 0.015); lateral stress 6.2° ± 5.2 (2.4–10.1) (P = 0.010). Findings from this cadaver study support the use of supplementary stabilization for clinical patients undergoing distal ulnar ostectomy. Future studies are needed in clinical patients to evaluate changes in limb positioning and gait associated with distal ulnar ostectomy.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The proximal brachium to the level of the distal humeral metaphysis was removed to facilitate data collection for a separate study. 20…”

Section: Subject Selectionmentioning

confidence: 99%

Section: Surgical Protocolmentioning

confidence: 99%

See 3 more Smart Citations

Ulnar ostectomy decreases the stability of canine cadaver carpi as assessed with stress radiography

Young

Amsellem

Muirhead

et al. 2018

Vet Radiology Ultrasound

Self Cite

View full text Add to dashboard Cite

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Partial ulnar ostectomy, stereotactic body radiation therapy, and palliative radiation therapy as local limb sparing treatment modalities for ulnar tumors in dogs

et al. 2023

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BackgroundInformation on dogs that undergo limb preserving local treatment for ulnar tumors is currently limited.ObjectiveTo describe the clinical characteristics and outcomes in dogs that underwent partial ulnectomy or radiation therapy (RT) for ulnar bone tumors, and to evaluate potential risk factors for outcomes as well as pre-treatment factors for association with treatment modality selected.AnimalsForty client-owned dogs that underwent partial ulnectomy or RT for an ulnar tumor from July 2006 to July 2021.MethodsThe medical records database from a single institution were retrospectively reviewed, and data were recorded and analyzed.ResultsRadiation therapy was performed in 24 dogs, with 12 stereotactic body RT (SBRT) and 12 palliative RT (PRT) plans, and partial ulnectomy was performed in 16 dogs. Biomechanical complications occurred in 6/12 (50%) dogs that underwent SBRT, 6/12 (50%) dogs that underwent PRT, and 3/16 (18.8%) dogs that underwent ulnectomy. The majority of dogs had a good functional outcome following partial ulnectomy, and no dogs required surgical stabilization of the carpus even with lateral styloid process excision. Pathologic fracture occurred in 4/12 (33.3%) dogs following SBRT and 5/12 (41.7%) dogs following PRT. Local progression or recurrence was documented in 5/12 (41.7%) dogs that underwent SBRT, 2/12 (16.7%) dogs that underwent PRT, and 2/16 (12.5%) dogs that underwent ulnectomy. The overall median survival time was 198 days, and factors that were significantly associated with improved survival time included adjuvant chemotherapy administration and partial ulnectomy as local treatment method for dogs that received chemotherapy.Clinical relevanceBoth RT and ulnectomy were effective and well tolerated local treatment modalities for dogs with ulnar tumors.

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Effect of distal ulnar ostectomy on carpal joint stability during weight bearing in the dog

Abstract: Distal ulnectomy with excision of the lateral styloid process induces a slight increase in valgus in canine cadaver carpi. The clinical consequences of that valgus on carpal function and health should be assessed in clinical patients.

Cited by 2 publications

References 15 publications

Ulnar ostectomy decreases the stability of canine cadaver carpi as assessed with stress radiography

Ulnar ostectomy decreases the stability of canine cadaver carpi as assessed with stress radiography

Partial ulnar ostectomy, stereotactic body radiation therapy, and palliative radiation therapy as local limb sparing treatment modalities for ulnar tumors in dogs

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