scholarly journals The influence of the morphometric parameters of the intercondylar notch on occurrence of meniscofemoral ligaments

2020 ◽  
Author(s):  
M. Minic ◽  
I. Zivanovic-Macuzic ◽  
M. Jakovcevski ◽  
M. Kovacevic ◽  
S. Minic ◽  
...  
Keyword(s):  
Morphometric Parameters ◽  
Intercondylar Notch ◽  
Meniscofemoral Ligaments

scholarly journals Morphometric Analysis and Three-Dimensional Computed Tomography Reconstruction of Thai Distal Femur

2021 ◽  
Vol 11 (3) ◽  
pp. 1052
Author(s):  
Chotchuang Phombut ◽  
Supakit Rooppakhun ◽  
Bura Sindhupakorn
Keyword(s):  
Computed Tomography ◽  
Aspect Ratio ◽  
3D Model ◽  
Distal Femur ◽  
Three Dimensional ◽  
Morphometric Parameters ◽  
T Test ◽  
Intercondylar Notch ◽  
Thai Population ◽  
Posterior Condyle

This study evaluates the distal femur morphology of the Thai population using a three-dimensional (3D) measurement method, measuring the distance between the triangular point of the femoral 3D model. The 3D model of 360 Thai femoral obtained from 180 volunteers (90 males, 90 females; range 20–50 years, average 32.8 years) was created using reverse engineering techniques from computed tomography imaging data. Using the 3D identified landmark method, the morphometric parameters evaluated included transepicondylar axis length (TEA), mediolateral length (ML), anteroposterior width (AP), medial anteroposterior width (MAP), lateral anteroposterior width (LAP), medial condyle width (MCW), lateral condyle width (LCW), intercondylar notch width (WIN), intercondylar notch depth (DIN), medial posterior condyle height (MPC), lateral posterior condyle height (LPC), femoral aspect ratio (ML/AP), lateral femoral aspect ratio (ML/LAP), and medial femoral aspect ratio (ML/MAP). The measured data were summarized for the analysis of an average value and standard deviation. Statistical analysis was performed using the independent samples t-test, unequal variances t-test, and linear regression. A p-value less than 0.05 (<0.05) was regarded as statistically significant and indicates strong evidence of the hypothesis. Additionally, the K-means clustering analysis of Thai distal femoral to the optimum size of the prosthesis with the correlation between ML length and AP width was performed. The results found that the morphometric parameters of the Thai male distal femur were significantly different and higher than those of Thai females, except for the ratio of ML/AP and ML/MAP. Comparatively, there was a significant difference between the specific size of Thai distal femur and that of the Korean population, which was also smaller than that for Caucasians. In addition, there was a mismatch between the distal femoral component sizing of knee prosthesis and what is available and commonly used in Thailand. At least six sizes of ML and/or AP should be recommended for the reasonable design of distal femoral prosthesis for covering the anatomy of Thais. These data are useful for predicting the morphometric parameters in forensic anthropology and provide basic data for the design of knee prostheses suitable for the Thai population.

scholarly journals Influence of morphometric intercondylar notch parameters in ACL ruptures

2006 ◽  
Vol 53 (4) ◽  
pp. 79-83 ◽  
Author(s):  
L. Stijak ◽  
V. Nikolic ◽  
Z. Blagojevic ◽  
V. Radonjic ◽  
G. Santrac-Stijak ◽  
...  
Keyword(s):  
Distal Part ◽  
Knee Injuries ◽  
Morphometric Parameters ◽  
Intercondylar Notch ◽  
Acl Injuries ◽  
Notch Width ◽  
Methods Of Calculation ◽  
Maximal Width ◽  
History Of ◽  
The Difference

The most important anatomic risk factors in ACL lesions are the morphometric parameters of intercondylar notch. In the morphometric studies index of notch width and index of notch shape (NWI and NSI) are commonly used. The certain morphologic parameters of distal femoral part are used in calculation. Beside standard parameters we measured the maximal width of intercondylar notch and distal part of femur, which we used for calculation of maximal index of notch width and maximal index of notch shape (NWI max and NSI max). We compared two different methods of calculation of intercondylar notch indexes to find out which one represent anatomic risk factor and influence the ACL lesions. The indexes were measured in the two groups of patients (33) who have the history of knee injuries, the first group has document of ACL injuries and the second without ACL injuries (control one). The important difference between two groups was founded in NWI (p<0.01) and NSI (p<0.05). NWImax and NSImax do not show the difference (p>0.05). The NWI and NSI importance is higher in males, and smaller in females. There is no difference in NWImax and NSImax (p>0.05) comparing to the gender.

scholarly journals The influence of the morphometric parameters of the intercondylar notch on rupture of the anterior cruciate ligament

2012 ◽  
Vol 69 (7) ◽  
pp. 576-580 ◽  
Author(s):  
Lazar Stijak ◽  
Milos Malis ◽  
Ruzica Maksimovic ◽  
Milan Aksic ◽  
Branislav Filipovic
Keyword(s):  
Risk Factors ◽  
Anterior Cruciate Ligament ◽  
Cruciate Ligament ◽  
Shape Index ◽  
Morphometric Parameters ◽  
Control Group ◽  
Study Group ◽  
Intercondylar Notch ◽  
Notch Width ◽  
Anterior Cruciate

Background/Aim. Morpohometric parameters of the intercondylar notch of femur present one of the substantial risk factors for rupture of the anterior cruciate ligament (ACL). In morphometric studies of the knee the most often referred indexes are notch width index and notch shape index. The aim of this study was to identificate the morphometric parameters of the intercondylar notch as risk factors for ACL rupture. Methods. This study included 99 patients divided into two groups: the study group (n = 57) composed of patients with chronic instability of the knee because of previos rupture of the ACL, and the control group (n = 42) composed of patients with lesion of the knee, but without rupture of the ACL. Measuring the width and height of intercondylar notch and epicondylar width was observed on a horizontal MR section. According to these values notch width and notch shape indexes were calculated. Results. The study group had statistically significantly higher (p < 0.05) intercondylar notch and lesser notch shape index than the control group (p < 0.05). The difference was highly statistically significant (p < 0.01) only in males, but not in females (p > 0.05). Absolute dimensions of the morphometric parameters of the distal part of the femur had highly statatistically significant larger values (p < 0.01) in males than females, exept in case of the intercondilar height in the control group (p > 0.05). Conclusion. Enhanced height of the intercondylar notch as well as lesser value of the notch shape index are associated with rupture of the ACL in males but not in females.

Intercondylar Notch and Cruciate Ligaments in Osteoarthritis

2018 ◽  
Author(s):  
Lena Hirtler ◽  
Markus Schreiner ◽  
Sebastian Röhrich ◽  
Arno Hirtler ◽  
Franz Kainberger
Keyword(s):  
Intercondylar Notch ◽  
Cruciate Ligaments

Clinical and Radiographic Correlation (According to CT) in Patients with Degenerative Lumbar Spinal Stenosis

2017 ◽  
pp. 124-130 ◽  
Author(s):  
S. G. Mlyavykh ◽  
A. Y. Aleynik ◽  
A. E. Bokov ◽  
M. V. Rasteryaeva ◽  
M. A. Kutlaeva
Keyword(s):  
Ct Scan ◽  
Spinal Canal ◽  
Clinical Manifestations ◽  
Intervertebral Discs ◽  
Morphometric Parameters ◽  
Neurogenic Claudication ◽  
Clinical Group ◽  
Lumbar Stenosis ◽  
Degenerative Lumbar Spinal Stenosis ◽  
Lumbar Spinal

Сomputed tomography (CT) is widely used in the diagnosis of  degenerative pathology of the lumbar spine, but the relationship  between clinical manifestations of lumbar stenosis and its anatomical prerequisites has not been sufficiently studied to date.The objective: to determine the significance of the morphometric  parameters of lumbar stenosis according to CT scans and to  establish their relationship with the prevailing symptoms of the disease.Material and methods. Seventy-five consecutive patients with  clinically significant lumbar stenosis who underwent CT scan before  surgery were enrolled in this study. The average values of thirteen  different morphometric parameters were calculated at LIII–SI levels of the intervertebral discs and of the pedicels in the axial and sagittal views. The possibility of classification of clinical observations and the correlation of morphometric parameters with the clinical forms of lumbar stenosis were investigated using discriminant and logistic regression analysis. Results. CT scan with high probability allocates patients with  predominant symptoms of neurogenic claudication or bilateral  radiculopathy. The most significant morphometric predictors of this  clinical group are the depth of the lateral recesses and the cross-sectional area of the spinal canal.Conclusion. CT scan significantly expands the informative value of  magnetic resonance imaging and can be used in planning the  decompressive stage of the surgery intervention in patients with lumbar spinal canal stenosis.

The influence of pregnancy on the change in morphometric parameters of the vision organ

2020 ◽  
pp. 28-29
Author(s):  
K.I. Manaenkov ◽  
◽  
A.A. Morozov ◽  
A.A. Chestnykh ◽  
E.N. Khomyakova ◽  
...  
Keyword(s):  
Morphometric Parameters

Актуальность. Нормально протекающую беременность принято считать особым физиологическим состоянием организма женщины. Интерес к изменению органа зрения у беременных в различные триместры обусловлен как выявлением офтальмологической патологии, а также выбором тактики ведения родов, постановки терапевтического и акушерского диагноза. Цель. Изучить морфометрические показатели плотности макулярного пигмента и толщины хориоидеи при миопии различной степени в первом и третьем триместрах беременности. Материал и методы. В открытое проспективное рандомизированное исследование вошли 38 соматически здоровых беременных (76 глаз). Средний возраст составил 29±4,3 лет (22-39 лет). Миопия слабой (МСлС) наблюдалась у 38% пациенток, средней (МСС) у 42%, высокой (МВС) 20% соответственно. Помимо стандартного офтальмологического обследования применяли фоторегистрацию глазного дна с определением плотности макулярного пигмента (показателей объема и площади) с помощью цифровой фундус-камеры VISUCAM 500 фирмы ZEISS Meditec, Inc. (Германия) и проводили анализ изменений слоёв сетчатки и толщины хориоидеи с помощью SPECTRALIS HRA+OCT (HEIDELBERG ENGINERING GmbH, Germany). Результаты. Выявлено достоверное снижение оптической плотности макулярного пигмента в среднем на 18%±3,5% (p<0,001) при сравнении показателей I и III триместра у беременных при миопии и увеличение толщины хориоидеи при МВС на 8,16%, МСС на 6,53%, МСлС на 8,28% при p<0,05 во всех группах. Эквивалентное изменение в противоположных направлениях толщины хориоидеии и объёма распределения макулярного пигмента подтверждено обратным коэффициентом корреляции -0,89. Выводы. Выявлена достоверная прямая зависимость между снижением площади и объёма распределения макулярного пигмента, увеличением толщины хориоидеи во время беременности и возникновением ретинальной патологии. Полученные данные можно использовать для выявления ранних патологических изменений со стороны органа зрения.

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