Ulnar collateral ligament tear and olecranon stress fracture nonunion in a collegiate pitcher

Mauro, Craig S.; Hammoud, Sommer; Altchek, David W.

doi:10.1016/j.jse.2011.04.025

Cited by 9 publications

(6 citation statements)

References 24 publications

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“…Currently, there is no report of biomechanical data on the onset mechanism of OSFs. 28 The fracture line of the epiphyseal plate in archery 30 cases widens from the dorsal side, not from the articular surface. Usually, the olecranon epiphyseal plate starts closing from the articular surface, whereas the dorsal part closes last.…”

Section: Discussionmentioning

confidence: 98%

“…46 The stress of VEO during the throwing movement increases the risk of UCL injuries and olecranon posteromedial disorders, 12,50 and there also have been reports of complications in both OSFs and UCL injuries. 28,46 Contact pressure between the trochlea and olecranon articular surface has been reported to become stronger with the presence of a damaged UCL; it has also been reported that the area of the contact articular surface becomes smaller. 3 The load on the olecranon articular surface is increased because of a medial musculoligamentous injury.…”

Section: Discussionmentioning

confidence: 99%

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Classification of Olecranon Stress Fractures in Baseball Players

et al. 2014

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This study presents a new classification system for the different types of OSFs based on the origin and direction of the fracture plane. This new system was strongly influenced by the age at symptom onset. Such information is essential for successful open reduction and internal fixation by ensuring that fixation pressure is perpendicular to the fracture plane, which will avoid the recurrence of stress fractures. In addition, the prevalence of UCL injuries suggests that it is a major risk factor for the development of OSFs.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Classification of Olecranon Stress Fractures in Baseball Players

et al. 2014

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“…This compression is believed to be caused by repetitive abutment of the olecranon against the olecranon fossa, triceps traction on the olecranon during the deceleration phase of throwing, and medial olecranon impaction onto the olecranon fossa due to valgus stress. [23][24][25] Whilst the human olecranon has a similar but more open semilunar notch, it lacks a prominent anconeal process such as dogs have. When humero-anconeal incongruity is present, such a prominent process may apply a supraphysiological cyclic force to the caudo-proximal aspect of the humeral condyle (at level of where the focal cartilaginous lesion is) which will result in cumulative bone strain leading to bone damage and fracture if net bone damage exceeds bone repair.…”

Section: Discussionmentioning

confidence: 99%

“…In baseball players, the tip of the olecranon is forced into the olecranon fossa during rapid elbow extension which leads to compensatory compression on the medial aspect of the olecranon–olecranon fossa articulation. This compression is believed to be caused by repetitive abutment of the olecranon against the olecranon fossa, triceps traction on the olecranon during the deceleration phase of throwing, and medial olecranon impaction onto the olecranon fossa due to valgus stress 23–25 . Whilst the human olecranon has a similar but more open semilunar notch, it lacks a prominent anconeal process such as dogs have.…”

Section: Discussionmentioning

confidence: 99%

Influence of oblique proximal ulnar osteotomy on humeral intracondylar fissures in 35 spaniel breed dogs

Danielski,

Quinonero Reinaldos,

Solano

et al. 2023

Veterinary Surgery

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ObjectiveTo investigate the effects of oblique proximal ulnar osteotomy (PUO) on the healing of humeral intracondylar fissure (HIF) in spaniel breed dogs.Study DesignClinical retrospective study.Sample PopulationA total of 51 elbows from 35 spaniel dogs.MethodsAn oblique PUO was performed in dogs diagnosed with HIF. The degree of healing of HIF was subjectively and objectively assessed on preoperative and long‐term follow‐up CT imaging. Objective assessment was performed by measuring the bone density in Hounsfield units (HU) of a rectangular region of interest (ROI) encompassing the entire hypoattenuated humeral fissure. Major and minor complications were recorded.ResultsA total of 24 partial and 27 complete HIFs were diagnosed. The follow‐up CT scan was performed at a median 18.5 months (range 10–49 months). Subjective assessment confirmed partial or complete healing of the HIF in 41 elbows (80.3%). Objective assessment confirmed a difference in mean HU of the HIF's ROI between preoperative (HU 640) and last follow‐up CT images (HU 835) (p = .001). Young dogs (<14 months) had the highest increase in HU of the HIF's ROI. Major complications occurred in five dogs (6 limbs) of which four were related to the lack of healing of the fissure (7.8%).ConclusionOblique PUO resulted in partial or complete healing of HIF and pain resolution in the majority of dogs.Clinical SignificanceThis study introduces an innovative approach to achieve healing of the HIF in the dog, which may help reduce the high complication rate traditionally associated with the use of transcondylar screws.

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“…These cases highlight two complicated presentations involving UCL injuries. Mauro et al (18) also described the combination of UCL tear and OSF (19). However, that patient first experienced an olecranon apophyseal stress fracture and was able to return to unrestricted pitching despite chronic widening of the olecranon epiphysis, indicating a nonunion OSF.…”

Section: Discussionmentioning

confidence: 99%