Point-Connecting Measurements of the Hallux Valgus Deformity: A New Measurement and Its Clinical Application

Seo, Jeong Ho; Ahn, Ji Yong; Boedijono, Dimas

doi:10.3349/ymj.2016.57.3.741

Cited by 10 publications

(12 citation statements)

References 32 publications

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“…It was believed that there was no signi cant difference between the two methods, but the former had a lower incidence of complications [11] . Jeong used the point-connecting method for measuring HVA and IMA, also due to consideration of the MTP joints' congruency and incongruency, which would affect the assessment of the severity of hallux valgus [12] .…”

Section: Discussionmentioning

confidence: 99%

Radiographic evaluation of the congruency of the first metatarsophalangeal joint in hallux valgus

Li¹,

Xu²,

Tang³

2021

Preprint

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Background The congruency of the first metatarsophalangeal (MTP) joint was extremely important for the selection of operating methods and prognosis, while its radiographic evaluation method was relatively lacking. The purpose of this article was to explore the radiographic indicators for evaluating the congruency of the first MTP joint. Methods The patients who had X-ray of weightbearing in the outpatient system were selected, excluding patients with trauma, deformity, and history of operation. 183 patients with 245 feet were included. The hallux valgus angle (HVA), distal metatarsal articular angle (DMAA), metatarsophalangeal joint angle (MTPJA), congruency index (CI) and tibial sesamoid position (TSP) were measured and do statistical analysis. Results The higher the degree of hallux valgus, the higher the proportion of incongruency of the first MTP joint. Significant differences were found in DMAA, MTPJA and CI between the congruency and incongruency groups of patients with moderate to severe hallux valgus (P < 0.05). The area under curve (AUC) of the receiver operating characteristic(ROC) curve for MTPJA and CI was 0.906 and 0.884, the sensitivity and specificity reached 0.791 and 0.862, 0.949 and 0.644, and the critical values were 10.67 and 0.765 respectively. The correlation test indicated that in the congruency group, DMAA and HVA had positive correlation, but MTPJA, CI and HVA had low correlation coefficients. DMAA and HVA were not correlated in the incongruency group, while MTPJA and HVA were significantly positively correlated, and CI and HVA showed a negative correlation (P < 0.05). Conclusion MTPJA and CI are indicators that can quantitatively evaluate the congruency of the first MTP joint, taking 10° and 0.765 as the demarcation points respectively. Clinically, the congruency of MTP joint should be considered when choosing operating methods for different degrees of hallux valgus, MTPJA and CI can be used as quantitative evaluation indicators.

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Section: Discussionmentioning

confidence: 99%

Radiographic evaluation of the congruency of the first metatarsophalangeal joint in hallux valgus

Li¹,

Xu²,

Tang³

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…It was believed that there was no signi cant difference between the two methods, but the former had a lower incidence of complications [11] . Jeong used the point-connecting method to measure the HVA and intermetatarsal angle (IMA), also considering the congruency and incongruency of the MTP joints, which would affect the assessment of the severity of hallux valgus [12] . supported…”

Section: Discussionmentioning

confidence: 99%

Radiographic Evaluation of Congruency of the First Metatarsophalangeal Joint in Hallux Valgus

Tang

2021

Preprint

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Background Congruency of the first metatarsophalangeal (MTP) joint is extremely important for the selection of surgical methods and prognosis, while radiographic evaluation methods are relatively lacking. The purpose of this article was to explore radiographic indicators for evaluating congruency of the first MTP joint.Methods Patients who had a weightbearing X-ray in the outpatient system were selected, excluding patients with trauma, deformity, and history of surgery. A total of 183 patients with 245 feet were included. The hallux valgus angle (HVA), distal metatarsal articular angle (DMAA), metatarsophalangeal joint angle (MTPJA), congruency index (CI) and tibial sesamoid position (TSP) were measured and statistically analysed.Results The higher the degree of hallux valgus was, the higher the proportion of incongruency of the first MTP joint. Significant differences were found in the DMAA, MTPJA and CI between the congruency and incongruency groups of patients with moderate to severe hallux valgus (P<0.05). The areas under the curve (AUCs) of the receiver operating characteristic (ROC) curve for the MTPJA and CI were 0.906 and 0.884, the sensitivity values reached 0.791 and 0.949, the specificity values were 0.862 and 0.644, and the critical values were 10.67 and 0.765, respectively. The correlation test indicated that in the congruency group, the DMAA and HVA were positively correlated, but the MTPJA, CI and HVA had low correlation coefficients. The DMAA and HVA were not correlated in the incongruency group, while the MTPJA and HVA were significantly positively correlated and the CI and HVA showed a negative correlation (P<0.05).Conclusion The MTPJA and CI are indicators that can be used to quantitatively evaluate the congruency of the first MTP joint, taking 10° and 0.765 as the demarcation points, respectively. Clinically, congruency of the MTP joint should be considered when choosing surgical methods for different degrees of hallux valgus, and the MTPJA and CI can be used as quantitative evaluation indicators.Level of evidence: Level III, Retrospective Comparative Study

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“…While the HVA is traditionally measured using the midline axis of the proximal phalanx and first metatarsal, Seo et al. (17) described a new method measuring the angle using three points (the most medial prominent point of the proximal phalanges in the first interphalangeal joint, the most medial prominent point of the first metatarsal head, and the most medial prominent and sclerotic point of the first metatarsal base). They suggested that it improves the reproducibility and validity of HVA measurement.…”

Section: Imaging Techniques and Measurementsmentioning

confidence: 99%

“…Seo et al. (17) also devised a similar point method and suggested that it improves the reliability of this measurement. An angle <9° is considered normal when using the traditional method with angles >9°, 11°, and 18° representing mild, moderate, and severe deformities, respectively (18).…”

Section: Imaging Techniques and Measurementsmentioning

confidence: 99%

“…HVA shows the highest intra-observer and inter-observer reliability. The point method had been shown by one author to be more reliable than the traditional midline method (17). However, recent studies have shown that traditional and point methods for HVA and IMA measurements are equally reliable on both radiographs and MRI with higher overall reliability for HVA (32,33).…”

Section: Imaging Techniques and Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

Clinical and imaging assessment and treatment of hallux valgus

et al. 2019

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Hallux valgus is a common condition estimated to affect as many as 23% of adults. The condition is associated with a variety of debilitating symptoms leading to significant morbidity and quality of life issues. Proper evaluation of this deformity and the timely management of its symptoms can improve hallux valgus-related symptomatology and quality of life. The most commonly used and readily reproduced measurements for assessing hallux valgus are the inter-metatarsal angle and the hallux valgus angle. These angles are helpful for choosing and planning surgical intervention for patients who fail initial conservative measures with distal osteotomies reserved for mild or moderate hallux valgus and proximal osteotomies indicated for more moderate to severe deformities. After reading this review article, readers will gain knowledge of the etiopathogenesis of hallux valgus, measurement parameters, and treatment strategies with representative case examples.

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Point-Connecting Measurements of the Hallux Valgus Deformity: A New Measurement and Its Clinical Application

Cited by 10 publications

References 32 publications

Radiographic evaluation of the congruency of the first metatarsophalangeal joint in hallux valgus

Radiographic evaluation of the congruency of the first metatarsophalangeal joint in hallux valgus

Radiographic Evaluation of Congruency of the First Metatarsophalangeal Joint in Hallux Valgus

Clinical and imaging assessment and treatment of hallux valgus

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