Digital radiographic measurement of tibial and femoral condylar articular surface asymmetry and knee joint space

Background:Several studies have evaluated the association between serum adiponectin levels and knee and hand osteoarthritis (OA), with mixed results.Objectives:The aim of this study was to investigate the relationship between OA and serum adiponectin levels according to the radiographic features of knee and hand OA.Methods:A total of 2,402 subjects were recruited from the Dong-gu Study. Baseline characteristics were collected via a questionnaire, and X-rays of knee and hand joints were scored by a semi-quantitative grading system. The relationship between serum adiponectin levels and radiographic severity was evaluated by linear regression analysis.Results:Subjects with higher tertiles of serum adiponectin were older and had a lower body mass index than those with lower tertiles. In the knee joint scores, serum adiponectin levels were positively associated with the total score (P<0.001), osteophyte score (P=0.003), and joint space narrowing (JSN) score (P<0.001) among the three tertiles after adjustment for age, sex, body mass index, smoking, alcohol consumption, education, and physical activity. In the hand joint scores, no association was found between serum adiponectin levels and the total score, osteophyte score, JSN score, subchondral cyst score, sclerosis score, erosion score, and malalignment score among the three tertiles after adjustment.Conclusion:In this study, we found that increased adiponectin levels were associated with higher radiographic scores in the knee joint, but not in the hand joint, suggesting different pathophysiologic mechanisms in the development of OA.Disclosure of Interests:None declared

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A novel method for the assessment of knee joint space width and subchondral bone micro architecture

Osteoarthritis and Cartilage ◽

10.1016/j.joca.2016.01.677 ◽

2016 ◽

Vol 24 ◽

pp. S379

Author(s):

R. Ljuhar ◽

B. Norman ◽

D. Ljuhar ◽

T. Haftner ◽

J. Hladuvka ◽

...

Keyword(s):

Knee Joint ◽

Subchondral Bone ◽

Joint Space Width ◽

Joint Space ◽

Novel Method ◽

Space Width

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Narrowing of knee joint space in patients with pseudogout.

Annals of the Rheumatic Diseases ◽

10.1136/ard.40.1.34 ◽

1981 ◽

Vol 40 (1) ◽

pp. 34-36 ◽

Cited By ~ 5

Author(s):

M H Ellman ◽

N L Brown ◽

B Levin

Keyword(s):

Knee Joint ◽

Joint Space

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Bracing improves clinical outcomes but does not affect the medial knee joint space in osteoarthritic patients during gait

Knee Surgery Sports Traumatology Arthroscopy ◽

10.1007/s00167-013-2596-7 ◽

2013 ◽

Vol 22 (11) ◽

pp. 2715-2720 ◽

Cited By ~ 14

Author(s):

Jeffrey A. Haladik ◽

William K. Vasileff ◽

Cathryn D. Peltz ◽

Terrence R. Lock ◽

Michael J. Bey

Keyword(s):

Knee Joint ◽

Clinical Outcomes ◽

Joint Space ◽

Medial Knee

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Simple geometry tribological study of osteochondral graft implantation in the knee

Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in Medicine ◽

10.1177/0954411917751560 ◽

2018 ◽

Vol 232 (3) ◽

pp. 249-256 ◽

Cited By ~ 2

Author(s):

Philippa Bowland ◽

Eileen Ingham ◽

John Fisher ◽

Louise M Jennings

Keyword(s):

Knee Joint ◽

Articular Surface ◽

Cartilage Damage ◽

Surface Damage ◽

Negative Control ◽

Osteochondral Allograft ◽

Cartilage Defects ◽

Osteochondral Grafts ◽

Osteochondral Repair ◽

Simple Geometry

Robust preclinical test methods involving tribological simulations are required to investigate and understand the tribological function of osteochondral repair interventions in natural knee tissues. The aim of this study was to investigate the effects of osteochondral allograft implantation on the local tribology (friction, surface damage, wear and deformation) of the tissues in the natural knee joint using a simple geometry, reciprocating pin-on-plate friction simulator. In addition, the study aimed to assess the ability of osteochondral grafts to restore a low surface damage, deformation and wear articulation when compared to the native state. A method was developed to characterise and quantify surface damage wear and deformation of the opposing cartilage-bone pin surface using a non-contacting optical profiler (Alicona Infinite Focus). Porcine 12 mm diameter cartilage-bone pins were reciprocated against bovine cartilage-bone plates that had 6 mm diameter osteochondral allografts, cartilage defects or stainless steel pins (positive controls) inserted centrally. Increased levels of surface damage with changes in geometry were not associated with significant increases in the coefficient of dynamic friction. Significant damage to the opposing cartilage surface was observed in the positive control groups. Cartilage damage, deformation and wear (as measured by change in geometry) in the xenograft (2.4 mm3) and cartilage defect (0.99 mm3) groups were low and not significantly different (p > 0.05) compared to the negative control in either group. The study demonstrated the potential of osteochondral grafts to restore the congruent articular surface and biphasic tribology of the natural joint. An optical method has been developed to characterise cartilage wear, damage and deformation that can be applied to the tribological assessment of osteochondral grafts in a whole natural knee joint simulation model.

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Reliability of measuring the medial knee joint space using ultrasound imaging

10.36879/jcmi.18.000108 ◽

2018 ◽

pp. 1-4

Keyword(s):

Physical Therapy ◽

Knee Joint ◽

Ultrasound Imaging ◽

Mixed Model ◽

Glenohumeral Joint ◽

Joint Space ◽

Rater Reliability ◽

Medial Knee ◽

Operator Experience ◽

Bony Landmarks

Background: The use of ultrasound to perform quantitative musculoskeletal (MSK) measurements requires reliability among different providers with varied levels of experience and training. Recent studies have shown that physical therapists (PT) can reliably measure the glenohumeral joint space using ultrasound imaging (USI) and operator experience or well defined training protocols influences the reliability. Few studies have reported the reliability of medial knee gap measurements with USI. Objective: Evaluate inter- and intra-rater reliability of a novel approach to measuring knee gapping using experienced and trained novice clinicians. Design: Inter-rater and intra-rater reliability study Setting: Physical therapy program Participants: Novice researchers were three upper-year Doctor of Physical Therapy students. Experienced researchers were two PT certified in MSK USI with eight years of experience. Methods: A total of 166 images of two subject’s medial knee joint gaps were captured in resting by a single experience researcher. Three novice researchers, who underwent a three-hour training protocol and two experienced researchers measured the images individually. Measurements were taken using standardized bony landmarks and internal calipers. All researchers were blinded to the subjects and results. Main outcome measures: Data was analyzed using two-way ICC mixed-model single measurement, SEM run for all researchers compared with experienced researcher one. Results: An excellent degree of reliability was found for both intra-rater and inter-rater measurements for Novice One and a good degree of reliability was found between Experienced One and Novice Two and Three. Conclusion: Both experienced and novice researchers attained a clinically significant ICC when compared to Experienced One. An accurate and reliable measurement of the medial knee joint gap maybe useful for further studies and help with diagnosis of joint pathologies. Level of study: IIB

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A measurement method of knee joint space width by ultrasound: a large multicenter study

Quantitative Imaging in Medicine and Surgery ◽

10.21037/qims-20-373 ◽

2020 ◽

Vol 10 (5) ◽

pp. 979-987 ◽

Cited By ~ 1

Author(s):

Jiaan Zhu ◽

Bing Li ◽

Li Qiu ◽

Hongmei Liu ◽

Mi Zhang ◽

...

Keyword(s):

Knee Joint ◽

Multicenter Study ◽

Measurement Method ◽

Joint Space Width ◽

Joint Space ◽

Large Multicenter Study ◽

Space Width

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Ultrasound-based examination of the medial ligament complex shows gender- and age-related differences in laxity

Knee Surgery Sports Traumatology Arthroscopy ◽

10.1007/s00167-020-06293-x ◽

2020 ◽

Author(s):

Patricia M. Lutz ◽

Matthias J. Feucht ◽

Judith Wechselberger ◽

Michael Rasper ◽

Wolf Petersen ◽

...

Keyword(s):

Knee Joint ◽

Knee Flexion ◽

Joint Space ◽

Medial Knee ◽

Mean Values ◽

Age Related ◽

Gender And Age ◽

Joint Width ◽

The Mean ◽

The Impact

Abstract Purpose Ultrasound (US) examination of the medial joint space of the knee has played a subordinate diagnostic role up till now. The purpose of the present study was to describe mean values of medial joint width and to investigate the impact of gender, age, and body mass index (BMI) on medial joint laxity in healthy knees using modern, dynamic US in a standardized fashion in unloaded and standardized loaded conditions. Methods A total of 65 subjects with 79 healthy knees were enrolled in this study. All volunteers underwent clinical examination of the knee. The medial knee joint width was determined using US in a supine position at 0° and 30° of knee flexion in unloaded and standardized loaded (= 15 Dekanewton, daN) conditions using a specific device. Mean values were described and correlations between medial knee joint width and gender, age, and BMI were assessed. Results Thirty-two females and 33 males were enrolled in this study. The mean medial joint width in 0° unloaded was 5.7 ± 1.2 mm and 7.4 ± 1.4 mm loaded. In 30° of knee flexion, the mean medial joint width was 6.1 ± 1.1 mm unloaded and 7.8 ± 1.2 mm loaded. The average change between unloaded and loaded conditions in 0° was 1.7 ± 1.0 mm and in 30° 1.7 ± 0.9 mm. A significant difference between genders was evident for medial joint width in 0° and 30° of flexion in unloaded and loaded conditions (p < 0.05). With rising age, a significant increased change of medial joint space width between unloaded and loaded conditions could be demonstrated in 0° (p = 0.032). No significant correlation between BMI and medial joint width in US could be found. Conclusion Mean values of medial joint width in unloaded and standardized loaded conditions using a fixation device could be demonstrated. Based on the results of this study, medial knee joint width in US is gender- and age-related in healthy knees. These present data may be useful for evaluating patients with acute or chronic pathologies to the medial side of the knee. Level of evidence III.

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Digital Radiographic Assessment of Knee Joint Space with its Clinical Significances

Birat Journal of Health Sciences ◽

10.3126/bjhs.v5i1.29637 ◽

2020 ◽

Vol 5 (1) ◽

pp. 976-980

Author(s):

Dil Islam `Mansur ◽

Subindra Karki ◽

Dilip Kumar Mehta ◽

Pragya Shrestha ◽

Sunima Maskey

Keyword(s):

Knee Joint ◽

Joint Space Width ◽

Joint Space ◽

Left Knee ◽

Lateral Side ◽

Cross Sectional ◽

Mean Values ◽

Medial Side ◽

Digital Radiograph ◽

The Right

Introduction: The knee joint space is seen on anteroposterior radiograph as a radiolucent area between lower end of femur and upper end of tibia which is an indirect way of evaluating the knee cartilage thickness. Objective: This study was aimed to determine the knee joint space in the medial and lateral compartments of the knee joint using digital radiograph. Methodology : This was cross-sectional study. It consisted of digital radiographs of knee joint of 320 individuals. The medial and lateral joint space width of each knee joint was measured using the scale in the computerized software. Results: The mean values for medial and lateral joint space widths were found to be 6.11±1.57 mm and 7.92±1.66 mm of the right knee joint respectively and 5.99±1.47 mm and 8.18±1.69 mm of the left knee joint respectively. In males, mean values for joint space widths were 6.37±1.58 mm on medial side and 8.21±1.67 mm on lateral side of the right knee; and 6.24±1.56 mm on medial side and 8.33±1.64 mm on lateral side of the left knee. In Females, these values were 5.89±1.53 mm on medial side and 7.66±1.62 mm on lateral side of the right knee; and 5.79±1.37 mm on medial side and 8.06±1.72 mm on lateral side of the left knee. Conclusions: It was concluded that the lateral joint space was greater than the medial joint space in both knees. The joint space widths were found to be reasonably constant with increasing age among studied population.

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