Congenital Aplasia of the Patella

Sferopoulos, N. K.

doi:10.17554/j.issn.2313-3406.2018.05.54

Cited by 5 publications

(6 citation statements)

References 31 publications

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“…Surgical repair of congenital patellar luxation carries a good prognosis in miniature horses and foals; however, most foals affected with congenital limb malformations such as ectopia, hypoplasia, aplasia, haemimelia or agenesis have a poor to grave prognosis, depending on the affected structures (Bertone & Aanes, 1984;Busschers 2009;DeBowes & Leipold, 1984;Finocchio & Guffy, 1970;Leipold & Macdonald, 1971;Modransky et al, 1987;Robbe et al, 2012;Silva et al, 2014;Van Pelt et al, 1971). In man, congenital patellar aplasia or hypoplasia is a rare autosomal dominant disorder, occurring in only a few families, and often does not cause major dysfunction (Sferopoulos, 2018). However, flexional deformities of the knee may develop due to atrophy of the quadriceps mechanism and can progress to lateral dislocation of the extensor mechanism, requiring corrective surgery (Jerome et al, 2009;Jerome et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Bilateral patellar aplasia in a foal

Ludwig

Hallowell

Womble

et al. 2023

Veterinary Medicine & Sci

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A 2-day-old Cleveland Bay colt was referred to the Equine Emergency Service of the Farm Animal and Equine Veterinary Medical Center at North Carolina State University's College of Veterinary Medicine for evaluation of decreased nursing behaviour and right hindlimb lameness of 2 days' duration. When assisted to stand, the foal was unable to extend either hindlimb or bear weight on the hindlimbs, the right patella was luxated laterally and unable to be reduced, and the foal assumed a crouched position.Stifle radiographs revealed minimal, heterogeneous, ill-defined ossification of both patellae. Due to the severity of the musculoskeletal defects, humane euthanasia was elected. Post-mortem examination identified a congenital malformation of both patella bones with failure of ossification and cardiac changes suggestive of right atrioventricular valve dysplasia. Histology of the patellae showed no evidence of osteoid deposition or ossification. To our knowledge, bilateral congenital patellar aplasia has not been previously described in foals.

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Section: Discussionmentioning

confidence: 99%

Bilateral patellar aplasia in a foal

Ludwig

Hallowell

Womble

et al. 2023

Veterinary Medicine & Sci

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“…Pubic rami lesions are also associated with patella anomalies [ 9 , 10 ]. Nail-patella syndrome is an autosomal dominant inherited syndrome that usually runs in families.…”

Section: Discussionmentioning

confidence: 99%

Pubic Bone Aplasia as an Incidental Finding in the Adult Population: Case Report and Review of the Literature

Mousafeiris¹,

Nikolopoulos²,

Repantis³

2021

Cureus

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Pubic bone aplasia is a rare finding that is either diagnosed as incidental finding or associated with various clinical syndromes. It is usually discovered in early childhood, however, there are few reported cases of late discovery during adulthood. We present a case of a 64-year-old male with unilateral superior pubic rami aplasia, discovered incidentally during workup for sustained trauma. Our patient reported treatment for unilateral hip dislocation in his early childhood and had a history of operated undescended testes ipsilaterally. This exact constellation of pubic rami aplasia, undescended testes and hip dysplasia is unique in the available literature. Even though our patient had a normal life and the pubic aplasia was discovered incidentally, it is important to always assess these patients for systemic involvement, either from the musculoskeletal system or other organs, in order to provide better treatment for them.

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“…Congenital absence of patella is rare and is usually among the findings of the hereditary Nail Patella Syndrome, ischiopatellar dysplasia or orthopedic anomalies [36,37]. There were 9 subjects (2.4%) evaluated to have had 'no patella' with all 9 subjects' ages ranging from 3 to 4 years old.…”

Section: Patella Variantsmentioning

confidence: 99%

Fabella and patella variants: radiographic prevalence, distribution and clinical relevance in a population of black african descent

et al. 2021

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To evaluate the radiographic characteristics and prevalence of fabella and patella variants in an indigenous African population. This retrospective observational study of orthogonal knee radiographs of 377 consecutive subjects was conducted in Lagos, Nigeria, from February 2017 to November 2017. The presence of bipartite/multipartite patella, as well as the presence of fabella were noted. The craniocaudal diameter, anteroposterior diameter, fabello-femoral distance and fabello-tibial distance of the fabella were measured. P≤0.05 represented a statistically significant result. Three hundred and seventy-seven subjects were enrolled. The average age was 41.22±21.37 years with a range of 3-100 years old. There were 158 male (41.9%) and 219 female (58.1%) subjects. The prevalence of fabella was 11.94%. There was a positive correlation between age <47 and ≥47 and occurrence of fabella, P<0.015. There was no statistically significant difference between the mean male and female measured fabella diameters. The overall prevalence of bipartite and multipartite patella in this study was 2.12%. Among male and female subjects, the difference in prevalence of bi and multipartite patella was statistically significantly, P=0.03. The prevalence of fabella and patella variants was lower in this study compared to the findings in other populations and ethnicities. Sex and age were significantly correlated with fabella prevalence. The results reported in this study will facilitate future studies examining the correlations between fabella and patella variants and various knee pathologies in a population of Black African descent.

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Congenital Aplasia of the Patella

Cited by 5 publications

References 31 publications

Bilateral patellar aplasia in a foal

Bilateral patellar aplasia in a foal

Pubic Bone Aplasia as an Incidental Finding in the Adult Population: Case Report and Review of the Literature

Fabella and patella variants: radiographic prevalence, distribution and clinical relevance in a population of black african descent

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