Thickness of the patella in men and women with osteoarthritis

Chmell, MJ; McManus, J; Rd, Scott

doi:10.1016/0968-0160(96)00027-0

Cited by 23 publications

(11 citation statements)

References 10 publications

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“…We used student's t test to determine the signi cant differences between present results and those reported in other literatures. The result indicated that the patella thickness of Chinese tended to be smaller than that of the Caucasians, while comparable to that of the Korean and greater than that of the Indian [4,9,26,35,40,50]. This nding is consistent with the results from previous studies [31,35,50].…”

Section: Discussionsupporting

confidence: 90%

The Three-Dimensional Morphology of the Patellofemoral Joint and the Normal Predicted Value of Tibial Tuberosity-Trochlear Groove Distance In Chinese Population

Li¹,

Liu²,

Tian³

et al. 2020

Preprint

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Our objective was to obtain normal patellofemoral measurements so as to provide a reference for prosthetic design. Besides, the absolute values and indices of TT-TG distances are still controversial in clinical application. A better method to enable precise clinical applications is still needed.Methods:78 knees of 78 subjects without knee pathologies were included in this cross-sectional study. A CT scan was obtained from all subjects and three-dimensional knee models were constructed using Mimics and SolidWorks software. We measured and analyzed 19 parameters including TT-TG distance and dimensions and shapes of patella, femur, tibia, and trochlea. LASSO regression was used to predict the normal TT-TG distances.Results:The dimensional indexes, TT-TG distance, and femoral aspect ratio of the males were significantly larger than those of females (all P values <0.05). However, after controlling the bias from age, height, and weight, there were no significant differences in TT-TG distances, PAL, and anterior-posterior dimensions between genders (all P values >0.05). The Pearson correlation coefficients between the AFO and other indexes were consistently below 0.3, indicating a none or weak relationship. Similar results were observed for the SA and the Wiberg index. Using LASSO regression, we obtained four parameters to predict TT-TG distance (R2=0.5612, P<0.01) to achieve the optimal accuracy and convenience. Conclusion:The anterior-posterior dimensions of the females were thicker than those of males for the same medial-lateral dimensions. More attention should be paid to not only gender differences but individual differences, especially the anterior condyle and trochlea. Besides, this study provided a new method of predicting TT-TG distance to enable precise clinical diagnoses and guide the medial transfer of the tibial tuberosity.

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Section: Discussionsupporting

confidence: 90%

The Three-Dimensional Morphology of the Patellofemoral Joint and the Normal Predicted Value of Tibial Tuberosity-Trochlear Groove Distance In Chinese Population

Li¹,

Liu²,

Tian³

et al. 2020

Preprint

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“…Our review of the English literature revealed several studies on this topic for Western patients. Nevertheless, it was difficult to identify comparable studies because the majority of studies involved small case numbers and provided no ethnic information on the studied patient population and little information on anthropometric dimensions [1,4,7]. Given these limitations of previous studies of Western patients, our study reveals Korean patellae are thinner and smaller than those of Western patients (Table 1).…”

Section: Discussionmentioning

confidence: 56%

“…Some studies have advocated reestablishment of original thickness and adequate residual bony thickness as key surgical guidelines [4,6,8,10,16]. However, in Korean patients, these two guidelines often cannot be satisfied.…”

Section: Discussionmentioning

confidence: 99%

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Clinical Implications of Anthropometric Patellar Dimensions for TKA in Asians

Kim

Chung

Kang

et al. 2008

Clin Orthop Relat Res

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Anthropometric patellar dimensions can influence implant design and surgical techniques in patellar resurfacing for TKA. We measured anthropometric patellar dimensions in 752 osteoarthritic knees (713 in females and 39 in males) treated with TKA in 466 Korean patients and compared them with reported dimensions for Western patients. We investigated the effects of postoperative overall thickness deviations, residual bony thickness after bone resection, and postoperative deviations of component center positions from median ridge positions versus clinical and radiographic outcomes evaluated 1 year after surgery. Korean patients undergoing TKA had thinner and smaller patellae than Western patients. We found no associations between preoperative to postoperative overall thickness differences and clinical and radiographic outcomes and no differences between knees with a residual bony thickness 12 mm or greater and knees with a residual thickness less than 12 mm, with the exception of WOMAC pain scores. We found no associations between postoperative deviations of component center position and clinical or radiographic outcomes. Our findings indicate bone resection for patellar resurfacing can be flexible without jeopardizing clinical outcome.

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“…In an American study by Baldwin and House 35) , the mean thickness at central ridge was 23.9 mm in males and 21.8 mm in females; the mean mediolateral width was 49.5 mm in males and 42.7 mm in females; and the mean superoinferior height was 39.4 mm in males and 35.0 mm in females. Chmell et al 36) documented English and American patient data on the patella: the mean thickness at central ridge was 26.1 mm for males and 22.6 mm for females. These studies show that Koreans have thinner and smaller patellae than Westerners.…”

Section: Introductionmentioning

confidence: 99%

Are Korean Patients Different from Other Ethnic Groups in Total Knee Arthroplasty?

Kim

Seo

Song

et al. 2015

Knee Surg Relat Res

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Most of the implants used for total knee arthroplasty (TKA) in Asian patients have been produced based on anthropometry of Western people. Since anatomic features and life styles are different between Western and Eastern people, there would be ethnic differences in terms of conformity of implants to the patient's anatomy or clinical results after TKA. Therefore, surgeons in Asia are particularly interested in related surgical techniques and implant designs used in TKA for improved clinical results and patient satisfaction. In this review, we investigated the anthropometric differences of Koreans from Westerners. Koreans are of shorter stature, less weight, and smaller skeletal structure and have a higher incidence of constitutional varus alignment of the lower extremity. Moreover, compared to Westerner TKA populations, the proportion of female patients was large and primary osteoarthritis was prevalent in preoperative diagnosis in Korean TKA patients. Culturally, Koreans have life styles that demand high flexion positions of the knee such as squatting, kneeling, and cross-legged sitting. Although there were no notable differences in the complication and revision rates following TKA between Westerners and Koreans, the incidence of postoperative deep vein thrombosis and pulmonary thromboembolism was lower in Koreans than Westerners. We hope that further research on implant designs and more interest in TKA will improve outcomes in Korean patients.

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Thickness of the patella in men and women with osteoarthritis

Cited by 23 publications

References 10 publications

The Three-Dimensional Morphology of the Patellofemoral Joint and the Normal Predicted Value of Tibial Tuberosity-Trochlear Groove Distance In Chinese Population

The Three-Dimensional Morphology of the Patellofemoral Joint and the Normal Predicted Value of Tibial Tuberosity-Trochlear Groove Distance In Chinese Population

Clinical Implications of Anthropometric Patellar Dimensions for TKA in Asians

Are Korean Patients Different from Other Ethnic Groups in Total Knee Arthroplasty?

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