Zur Frage der Patella partita und ihrer Entstehung

Paas, H. R.

doi:10.1007/bf02800357

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…The reported incidences of “usual” bipartite patella in studies that included more than 1,000 patients were 0.2 % (3/1,500 patients) [29], 1.5 % (17/1,100 patients) [34], and 1.7 % (23/1,378 patients) [2]. Bipartite patella is more common in males than females.…”

Section: Epidemiologymentioning

confidence: 99%

Developmental anomaly of ossification type patella partita

Oohashi

2014

Knee Surg Sports Traumatol Arthrosc

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Section: Epidemiologymentioning

confidence: 99%

Developmental anomaly of ossification type patella partita

Oohashi

2014

Knee Surg Sports Traumatol Arthrosc

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“…Green (1975) claimed that the prevalence was ranging from 0.2% to 6%. In the German literature, reported prevalence values were 0.05% (Stucke, 1950), 0.20% (Paas, 1931), 1.54% (Siemens, 1931), 1.66% (Blumensaat, 1933).…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Bipartite Patella in Turkish Population: Analysis of Bilateral Knee Radiographs in 897 Subjects

et al. 2015

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KOSE, O.; ERASLAN, A.; ERGUN, A.; EGERCI, O. F. & ERCAN, E. C.Prevalence of bipartite patella in Turkish population; analysis of bilateral knee radiographs in 897 subjects. Int. J. Morphol., 33(3):1108-1113, 2015. SUMMARY:Bipartite patella is a normal anatomic variant of patella. There are various data about the prevalence of bipartite patella in the literature. The aim of this study was to investigate its prevalence, type distribution and sex predilection in Turkish population. Bilateral knee radiographs were retrospectively reviewed of 897 consecutive adult patients. Cases with bipartite patella were categorized according to the Oohashi classification. Medical records were examined in order to differentiate symptomatic and asymptomatic bipartite patellae. We contacted symptomatic patients by telephone to learn continuity of knee pain. We identified 11 cases (7 male, 4 female) of bipartite patella among the 283 male and 614 female patients. No bilateral cases were identified. The prevalence of bipartite patella was 1.22% overall, 2.47% in males, and 0.65% in females. The most common type was superolateral bipartite patella as seen in 9 patients (81.8%). One subject had lateral bipartite and one subject had superolateral tripartite patella. Painful bipartite patella was found in only 2 patients (18%). One of them had continuing symptoms even after 12 months. In conclusion, we found that the prevalence of bipartite patella in Turkish population was approximately 1%. Both inclusion of only adult (skeletally mature) subjects and assessment with bilateral imaging increased the reliability of this value. In accordance with the literature, bipartite patella was found significantly more frequent in males and mostly in superolateral type. More studies are needed in order to obtain the prevalence, type and sex distribution of bipartite patella in different populations.

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“…These findings are not related to patellar fracture. Fourth, several features of the x‐ray films can help to differentiate bipartite patella from patella fractures: the bipartite patella is frequently bilateral; it is usually without soft tissue swelling of the knee joint; it usually consists of a large main bone and a small bone which is usually situated at the superolateral aspect of the patella; the radiolucent line of demarcation is wide, runs downward and lateral, and has a round sclerotic margin, not a fracture line; the opposing bony margins are smooth, dense, and can be seen to be composed of bone cortex; there is no periosteal reaction and bone callus formation; and consolidation will not occur by treatment. Reconstruction CT scans, magnetic resonance imaging, and bone scintigraphy can also help us to differentiate bipartite or multipartite patella from patella fracture, and MRI is currently thought to be the most appropriate method applied to evaluate patients with bipartite patella .…”

Section: Discussionmentioning

confidence: 99%

“…Gruber was the first to report a case of bipartite patella in 1883 (3), and he found that both patellae of a 21-year-old farmer were divided into a large lower inner fragment and a small upper outer fragment. In the general population, the incidence of bipartite patella is low, with reported incidences of only 0.2-1.7% (4)(5)(6). The condition occurs more in men than in women and is more frequently unilateral than bilateral (7)(8)(9)(10)(11)(12).…”

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confidence: 99%

Forensic Identification of Bipartite Patella Misdiagnosed as Patella Fracture

Shi

Huang

et al. 2017

Journal of Forensic Sciences

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Bipartite patella is recognized as a developmental anomaly of ossification. Most of them are asymptomatic and are discovered incidentally. Bipartite patella is sometimes misdiagnosed as a patella fracture, because the x-ray images of both these conditions may appear very similar. In this case, the patient complained of left knee pain after x-ray films revealed a fracture-like line in the left patella. The patient was then diagnosed as having a patella fracture. In China, the injury degree is categorized as serious injury, minor injury, and trivial injury. As the injury degree of patellar fracture is identified as minor injury, the defendant who injured the patient will be sentenced to prison for ≤3 years. However, the defendant objected to this judgment and applied for the second evaluation of injury degree. On the basis of the site of injury, clinical manifestations, and imaging findings, we diagnosed the patient with bipartite patella which belongs to normal anatomic variant. Therefore, the injury degree of the patient was not minor injury.

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Zur Frage der Patella partita und ihrer Entstehung

Cited by 8 publications

References 2 publications

Developmental anomaly of ossification type patella partita

Developmental anomaly of ossification type patella partita

Prevalence of Bipartite Patella in Turkish Population: Analysis of Bilateral Knee Radiographs in 897 Subjects

Forensic Identification of Bipartite Patella Misdiagnosed as Patella Fracture

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