Measurement Of Femoral Cartilage Thickness Research Articles

Ankylosing spondylitis impact on knee cartilage thickness: correlation with demographic data and clinical characteristics

BackgroundAnkylosing spondylitis (AS) is a progressive inflammatory disease involving cartilaginous structures in the spine and peripheral joints. However, the number of the studies assessing knee cartilage thickness in AS and its correlations with parameters of disease activity/severity is even less. We aimed to assess the impact of AS on knee cartilage thickness using musculoskeletal ultrasound (MSUS) and magnetic resonance imaging (MRI).MethodsTwenty-five AS patients and 25 healthy individuals (15 served for MSUS assessment, and 10 served for MRI assessment) were included. By employing MRI “using a 1.5-T machine” and MSUS “with a 10–18-MHz linear probe,” respectively, the thickness of the femorotibial cartilage and femoral cartilage was assessed.ResultsCompared to healthy controls, AS patients showed statistically significantly thinner cartilage thickness (P < 0.05) at all femorotibial cartilage subdivisions and the medial femoral condyle and intercondylar area on both sides. Femoral cartilage thickness measurements either assessed by MSUS or MRI were negatively correlated with age, measures of disease activity, and Bath Ankylosing Spondylitis Radiology Index for the spine (BASRI-s) (P < 0.05). However, MRI tibial cartilage thickness was negatively correlated with disease duration and measures of spinal mobility, functional limitation, and BASRI-s (P < 0.05). MRI total cartilage thickness measurements at the femoral condyle were negatively correlated with Bath Ankylosing Spondylitis Functional Index (BASFI) and Ankylosing Spondylitis Disease Activity Score-erythrocyte sedimentation rate (ASDAS ESR) (P = 0.04 and P = 0.03, respectively). A positive correlation was found between MSUS and MRI total femoral cartilage thickness (P = 0.02).ConclusionsThe knee cartilage thickness of AS patients was thinner than that of healthy controls. The correlations between cartilage thickness and patient variables demonstrate MSUS and MRI's utility in identifying knee cartilage loss areas in AS patients.

Ultrasound assessment of distal femoral cartilage thickness measurements after walking/jogging in subjects with pes planus

BackgroundBecause there is a closed kinematic chain between the lower extremity joints during weight-bearing activities, pes planus can affect knee biomechanics. ObjectiveThis study aimed to measure distal femoral cartilage thickness with ultrasound after 3 different conditions (at rest, during walking and jogging) in subjects with pes planus and compare these conditions with each other and also with controls. MethodSixteen participants with pes planus(5-men, 11-women; aged 18–30 years) and 16 controls(3-men, 13-women; aged 18–30 years) were enrolled. Distal femoral cartilage thickness was evaluated with ultrasound before and after three separate 30-min conditions. Preferred walking speed (PWS) was determined on the ground. Subjects walked on a treadmill for 30-min at their PWS and jogged 30-min at 30% above their PWS. The Foot Function Index and the Foot-Ankle Outcome Survey were used to evaluate the clinical and functional status of the subjects. ResultsNeither PWSs nor jogging speeds were statistically different between groups (p > 0.05). There were no statistically significant differences between groups for absolute and percent change of cartilage thickness for all three conditions (p > 0.05). There were also no statistically significant differences between conditions for each intragroup (p > 0.05). The median Foot Function Index score of the subjects with pes planus was 9.78(0–44.35) for the right foot and 9.52(0–40.87) for the left foot. The median the Foot-Ankle Outcome Survey score of the subjects with pes planus was 88(65–100). ConclusionThere was no difference in knee joint cartilage deformations under different loading conditions, neither in subjects with pes planus nor in controls.

Ultrasound Measurement of Femoral Cartilage Thickness in Patients with Familial Mediterranean Fever and its Relation to Amyloidosis and Other Disease Characteristics.

This study aimed to determine femoral cartilage thickness (FCT) in patients with familial Mediterranean fever (FMF) and healthy individuals and to assess the relationship of FCT with the development of amyloidosis and clinical features. Patients diagnosed with FMF according to the Tel-Hashomer criteria and healthy controls were included in the study. FCT of both knees was measured with a 7-12 MHz linear probe in maximum knee flexion. Three midpoint measurements were obtained from each knee: Lateral femoral condyle (LFC), intercondylar area (ICA), and medial femoral condyle (MFC). The patients' clinic characteristics include disease duration, medications, comorbid conditions, amyloidosis, chronic renal failure (CRF), FMF gene mutation, arthritis, sacroiliitis, PRAS score, and Physical Activity Questionnaire Short Form score were recorded. A total of 46 patients with FMF (36 women) and 20 age-sex-body mass index-matched controls (14 women) were enrolled in this study. The patients and controls' mean age were 37±12.9 and 37.5±8.6 years, respectively. Amyloidosis occurred in 7 patients (15.2%), CRF in 3 (6.5%), and knee arthritis in 8 (17%). Disease activity was mild in 55.8%, moderate in 20.9%, and severe in 23.23% of the patients. The mean FCT in millimeter values in the FMF and control groups was as follows: On the right side, LFC 1.9±0.5 and 2±0.52, ICA 2.2±0.77 and 2.25±0.97, and MFC 2±0.47 and 2.25±0.72; on the left side, LFC 1.9±0.4 and 2.05±0.55, ICA 2.25±0.87 and 2.25±0.87, and MFC 1.85±0.5 and 2.25±0.6. Patients with FMF had decreased cartilage thickness at the lateral condyle of both knees (p<0.05) and medial condyle of the left knee (p<0.05) compared with controls. FCT measurements were similar in patients with or without arthritis, amyloidosis, and CRF (p>0.05). FCT scores were not different among the disease activity groups (p>0.05). These findings suggest that patients with FMF have decreased FCT compared with controls, and there is no significant relationship between the FCT and amyloidosis and disease activity.

Sonographic assessment of femoral cartilage thickness in healthy adults.

ObjectiveThis study was performed to obtain normative data of the distal femoral cartilage thickness in healthy adults by ultrasound.MethodsThis cross-sectional study included 72 healthy adults. The demographic characteristics of the participants were recorded, and the thickness of the femoral articular cartilage was measured using a 5- to 18-MHz linear probe.ResultsSignificant statistical difference towards the male side at left medial condyle (P = 0.001) and left lateral condyle (P = 0.009). Weakly positive statistical difference was noted towards the male side at right medial condyle (P = 0.06) and right lateral condyle (P = 0.07). The femoral cartilage thickness in the study participants did not correlate with weight, body mass index, and age (P >0.05). Positive statistical correlation with height noted in right medial condyle, right lateral condyle, right intercondylar area, and left medial condyle.ConclusionThis study increases the pool of normative data of femoral cartilage thickness measurements. Additionally, the findings of this study emphasize the fact that women have thinner cartilage than men in four of the studied parameters.

Ultrasound measurement of femoral cartilage thickness in the knee of healthy young university students

Background and objectiveArticular cartilage (AC) is always affected in any joint with osteoarthritis. Ultrasound can be a useful tool in monitoring changes in the AC. The purpose of the present study is to ultrasound measure the thickness of the AC in the distal femur in young students and determine its relationship with body mass index (BMI), muscle mass, body fat and sports practice. Materials and methodsAn observational cross-sectional study was conducted with healthy volunteers, between 15 and 25 years old. Anthropometric data were collected and the thickness of the femoral cartilage of the knee was measured at 5 points. In addition, the percentage of muscle and body fat was measured in a subgroup. Results100 subjects were included in the study. The average age was 20 years (± 2.5). The average BMI was 23kg/m2 (± 3.1). AC was thicker in men and sportsmen, versus women and sedentary people, with a statistically significant difference. When comparing BMI with AC thickness no significant relationship was found; however, only 2 participants had BMI > 30. ConclusionsCartilage thickness has a direct relationship with the percentage of muscle, and inversely with the percentage of fat. BMI is not a good parameter when evaluating the dynamic behaviour of cartilage in non-obese youths.

Ultrasonographic measurement of femoral cartilage thickness in type II diabetic patients.

The aim of this study is to compare the distal femoral cartilage thickness of patients with type II diabetes mellitus with those of healthy subjects using ultrasonography. The study comprised 34 patients and 36 healthy subjects. Demographic characteristics of all the participants were recorded. The thickness of the femoral articular cartilage was measured using a 5-18MHzlinearprobe.Measurements were performed bilaterally from three points (intercondylar area, medial condyle, and lateral condyle). No significant difference could be found between patients and healthy subjects. Two demographic characteristics correlated positively with diabetic patients.

The Reliability of Suprapatellar Transverse Sonographic Assessment of Femoral Trochlear Cartilage Thickness in Healthy Adults.

To determine the intrasession reliability of femoral cartilage thickness measurements using sonography and extend the pool of normative data for cartilage thickness measurements assessed by sonography. A total of 77 healthy participants (55 men, 22 women), with an average age of 43 ± 18 (mean ± standard deviation) years, volunteered. Resting suprapatellar sonography was used to image trochlear cartilage thickness on 2 separate occasions a maximum of 7 days apart. Reliability was evaluated with intraclass correlation coefficients, Bland-Altman analysis, standard error of measurement, and the smallest real difference. Normative data was assessed using linear, multiple regression models and independent group t tests. The test-retest level of agreement at all locations was high (intraclass correlation coefficient, 0.779-0.843), which increased to high-very high in young adults (intraclass correlation coefficient, 0.884-0.920). The standard error of measurement was 8.2% to 8.3% at all locations and reduced further to 5.4% to 6.3% in younger adults. The smallest real difference was between 22.8% and 23.1% for the full sample and 14.9% and 17.5% in young adults only. Multiple regression analyses demonstrated that age, weight, female sex, and a high physical activity frequency could significantly predict cartilage thickness at all locations (P < .05); however, female sex was the only significant independent predictor in all models (all P < .01). Females also had thinner cartilage at all locations (P < .01). Suprapatellar sonography demonstrates high intratester reliability and measurement precision and is a promising method to assess trochlear cartilage thickness. Being female may impact femoral cartilage thickness more than other potential risk factors for knee osteoarthritis such as age, weight, and high physical activity frequency.

Ultrasonographic Assessment of Femoral Cartilage Thickness in Patients With Cerebral Palsy

BackgroundCerebral palsy (CP) is one of the most disabling syndromes in children. To our knowledge, there has not yet been any reported evaluation by ultrasonography of the effect of CP on distal femoral cartilage. The value of understanding this effect on cartilage is that sonographic evaluation of cartilage thickness may help physicians to predict the joint health of these children. ObjectiveTo determine whether femoral cartilage thickness in patients with CP is different from that in healthy control subjects. DesignCross-sectional study. SettingNational tertiary rehabilitation center. PatientsThe study included 40 patients with diplegic CP (23 male and 17 female) and 51 healthy control subjects (29 male and 22 female). MethodsDemographic and clinical characteristics were recorded. Cartilage thicknesses were measured. Main Outcome MeasureCartilage thickness measurements were taken from the medial and lateral condyles, and intercondylar areas of both knees. ResultsBoth groups were similar in terms of age, gender, and weight (P > .05). The mean cartilage thickness measurements of the medial condyle and intercondylar area of knees in the CP group were significantly less than those in the healthy control group (all P < .05). There was moderate negative correlation between age and all femoral cartilage thickness measurements in the CP group. There was no correlation between age and femoral cartilage thickness measurements in the healthy group. There was a negative correlation between Gross Motor Functional Classification System levels and cartilage thickness in the CP group. The highest cartilage thickness measurements were detected in level 1 patients, and the lowest measurements were detected in level 5 patients. ConclusionThis study showed that patients with CP have a thinner femoral cartilage than healthy control subjects. Management of patients with CP should include close surveillance. Level of EvidenceIII

Ultrasonographic evaluation of the femoral cartilage thickness in patients with hypothyroidism.

[Purpose] The aim of this study was to investigate the effects of hypothyroidism on femoral cartilage thickness by using ultrasound, which has been found to be useful in the early diagnosis of knee osteoarthritis. [Subjects and Methods] Forty patients diagnosed with hypothyroidism and 30 age-, gender-, smoking status, physical activity-, and body mass index-matched healthy subjects were enrolled. The thickness of the femoral articular cartilage was measured using a 7- to 12-MHz linear probe. Three mid-point measurements were taken from each knee at the lateral condyle, intercondylar area, and medial condyle. [Results] Age, gender, body mass index, smoking status, and physical activity were similar between the groups, but patients with hypothyroidism had thinner femoral cartilage than the healthy controls at all measurement sites. Nonetheless, the differences were not statistically significant (except in the case of the left medial condyle). [Conclusion] Ultrasonographic measurement of femoral cartilage thickness may be useful in the early diagnosis of knee osteoarthritis in patients with hypothyroidism.

Decreased Femoral Cartilage Thickness in Patients With Systemic Sclerosis

BackgroundSystemic sclerosis (SSc), or scleroderma, is a severe connective tissue disease. Although musculoskeletal involvement is frequent and causes significant functional disability in patients with SSc, articular cartilage thickness has not been previously investigated. The aim of this study was to compare the femoral cartilage thickness (FCT) in patients with SSc with that of controls who were matched for age, body mass index and osteoarthritis prevalence. MethodsThe thickness of femoral articular cartilage was measured by ultrasonography in patients and controls. Three midpoint measurements were taken from each knee: lateral femoral condyle (LFC), femoral intercondylar area and medial femoral condyle (MFC). ResultsForty female patients with SSc and 85 female controls were included. In patients with SSc, 18 (45.0%) had diffuse SSc, 18 (45.0%) had limited SSc, 1 (2.5%) had overlap (polymyositis) and 3 (7.5%) had SSc sine scleroderma. The mean FCT measurements of patients with SSc at MFC of the right and left knees (1.86 and 1.84 mm, respectively) and LFC of the left knee (1.93 mm) were statistically lower than in the controls (right and left MFC, 2.23 and 2.25 mm, respectively, P < 0.0001, and left LFC 2.15 mm, P = 0.026). ConclusionsPatients with SSc had thinner femoral cartilage compared with controls. The underlying possible mechanisms of thin FCT may be multifactorial, and there may be many influencing factors like immune activation, vasculopathy, oxidative stress and synovial fibrosis or markers of cartilage degradation. The possible factors influencing the change in cartilage thickness or metabolism in patients with SSc require further research.

Femoral cartilage thickness measurements in healthy individuals: Learning, practicing and publishing with TURK-MUSCULUS

Measurement of the femoral cartilage thickness by using in-vivo musculoskeletal ultrasonography (MSUS) has been previously shown to be a valid and reliable method in previous studies; however, to our best notice, normative data has not been provided before in the healthy population.The aim of our study was to provide normative data regarding femoral cartilage thicknesses of healthy individuals with collaborative use of MSUS. This is across-sectional study run at Physical and Rehabilitation Medicine Departments of 18 Secondary and Tertiary Centers in Turkey. 1544 healthy volunteers (aged between 25-40 years) were recruited within the collaboration of TURK-MUSCULUS (Turkish Musculoskeletal Ultrasonography Study Group). Subjects who had a body mass index value of less than 30 and who did not have signs and symptoms of any degenerative/inflammatory arthritis or other rheumatic diseases, history of knee trauma and previous knee surgery were enrolled. Ultrasonographic measurements were performed axially from the suprapatellar window by using linear probes while subjects' knees were in maximum flexion. Three (mid-point) measurements were taken from both knees (lateral condyle, intercondylar area, medial condyle). A total of 2876 knees (of 817 M, 621 F subjects) were taken into analysis after exclusion of inappropriate images. Mean cartilage thicknesses were significantly lower in females than males (all p< 0.001). Thickness values negatively correlated with age; negatively (females) and positively (males) correlated with smoking. Men who regularly exercised had thicker cartilage than who did not exercise (all p < 0.05). Increased age (in both sexes) and absence of exercise (males) were found to be risk factors for decreased cartilage thicknesses. Further data pertaining to other countries would be interesting to uncover whether ethnic differences also affect cartilage thickness. Collaborative use of MSUS seems to be promising in this regard.

SAT0316 Relationship of ultrasonographic measurement of osteophytes and femoral cartilage thickness to radiographic severity of knee osteoarthritis

BackgroundConventional radiography is the main outcome measure in epidemiological studies of osteoarthritis (OA), but the use of ultrasound (US) has gained increased interest with ability to visualize both osteophytes and...

Ultrasonographic measurement of femoral cartilage thickness in patients with spinal cord injury

To assess femoral cartilage thickness in patients with spinal cord injury (SCI). Forty-six patients with SCI (35 men, 11 women; mean age: 33.6 years (standard deviation 8.1) and 46 age-, sex- and body mass index (BMI)-matched healthy subjects were enrolled. Patients were evaluated with the American Spinal Injury Association (ASIA) Impairment Scale, Modified Ashworth Scale, Walking Index for Spinal Cord Injury, and Functional Independence Measurement. Mid-point ultrasonographic femoral cartilage thickness measurements were taken from the right lateral condyle, right intercondylar area, right medial condyle, left medial condyle, left intercondylar area and left lateral condyle. Ultrasonographic measurements revealed significantly thicker values in the intercondylar areas (bilaterally) and the medial condyle (left knee) of patients with SCI compared with those of controls. When the subgroups were compared with their paired healthy controls, measurements pertaining to the motor complete group were found to be significantly thicker in the intercondylar areas (bilaterally) and the medial condyle (left knee). Cartilage thickness values correlated negatively with the duration of immobilization (for bilateral intercondylar areas), and with BMI and ASIA level (for bilateral lateral condyles). Femoral cartilage thicknesses were found to change after SCI, and to have a negative correlation with disease duration and severity. Future studies including histological evaluations may elucidate whether such changes are favourable for the knee joints of patients with spinal cord injury.