Tags

Type your tag names separated by a space and hit enter

Evaluation of First-Ray Mobility in Patients with Hallux Valgus Using Weight-Bearing CT and a 3-D Analysis System: A Comparison with Normal Feet.
J Bone Joint Surg Am. 2017 Feb 01; 99(3):247-255.JB

Abstract

BACKGROUND

Some physicians report that patients with hallux valgus have hypermobility at the tarsometatarsal (TMT) joint of the first ray and 3-dimensional (3-D) deformity. With use of non-weight-bearing and weight-bearing computed tomography (CT), we evaluated the 3-D mobility of each joint of the first ray in feet with hallux valgus compared with normal feet.

METHODS

Ten feet of 10 patients with hallux valgus and 10 feet of 10 healthy volunteers with no foot disorders were examined. All participants were women. Weight-bearing (a load equivalent to body weight) and non-weight-bearing CT scans were made with use of a device that we developed. Orthogonal coordinate axes were set and a 3-D model was reconstructed. Each joint of the first ray was aligned with the respective proximal bone, and 3-D displacement of the distal bone relative to the proximal bone under loading was quantified.

RESULTS

At the talonavicular joint, significantly greater dorsiflexion of the navicular relative to the talus was observed in the hallux valgus group compared with the control group. At the medial cuneonavicular joint, the hallux valgus group showed significantly greater eversion and abduction of the medial cuneiform relative to the navicular. At the first TMT joint, the hallux valgus group showed significantly greater dorsiflexion, inversion, and adduction of the first metatarsal relative to the medial cuneiform. At the first metatarsophalangeal joint, the hallux valgus group showed significantly greater eversion and abduction of the first proximal phalanx relative to the first metatarsal (all p < 0.05).

CONCLUSIONS

The results of this study suggest that loading of the foot causes significant 3-D displacement not only at the TMT joint but also at the other joints of the first ray. There is increased mobility in the first ray in patients who have hallux valgus.

Authors+Show Affiliations

1Department of Orthopaedic Surgery, Jikei University School of Medicine, Tokyo, Japan 2Institute for High Dimensional Medical Imaging, Jikei University School of Medicine, Tokyo, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

28145956

Citation

Kimura, Tadashi, et al. "Evaluation of First-Ray Mobility in Patients With Hallux Valgus Using Weight-Bearing CT and a 3-D Analysis System: a Comparison With Normal Feet." The Journal of Bone and Joint Surgery. American Volume, vol. 99, no. 3, 2017, pp. 247-255.
Kimura T, Kubota M, Taguchi T, et al. Evaluation of First-Ray Mobility in Patients with Hallux Valgus Using Weight-Bearing CT and a 3-D Analysis System: A Comparison with Normal Feet. J Bone Joint Surg Am. 2017;99(3):247-255.
Kimura, T., Kubota, M., Taguchi, T., Suzuki, N., Hattori, A., & Marumo, K. (2017). Evaluation of First-Ray Mobility in Patients with Hallux Valgus Using Weight-Bearing CT and a 3-D Analysis System: A Comparison with Normal Feet. The Journal of Bone and Joint Surgery. American Volume, 99(3), 247-255. https://doi.org/10.2106/JBJS.16.00542
Kimura T, et al. Evaluation of First-Ray Mobility in Patients With Hallux Valgus Using Weight-Bearing CT and a 3-D Analysis System: a Comparison With Normal Feet. J Bone Joint Surg Am. 2017 Feb 1;99(3):247-255. PubMed PMID: 28145956.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Evaluation of First-Ray Mobility in Patients with Hallux Valgus Using Weight-Bearing CT and a 3-D Analysis System: A Comparison with Normal Feet. AU - Kimura,Tadashi, AU - Kubota,Makoto, AU - Taguchi,Tetsuya, AU - Suzuki,Naoki, AU - Hattori,Asaki, AU - Marumo,Keishi, PY - 2017/2/2/entrez PY - 2017/2/2/pubmed PY - 2017/4/11/medline SP - 247 EP - 255 JF - The Journal of bone and joint surgery. American volume JO - J Bone Joint Surg Am VL - 99 IS - 3 N2 - BACKGROUND: Some physicians report that patients with hallux valgus have hypermobility at the tarsometatarsal (TMT) joint of the first ray and 3-dimensional (3-D) deformity. With use of non-weight-bearing and weight-bearing computed tomography (CT), we evaluated the 3-D mobility of each joint of the first ray in feet with hallux valgus compared with normal feet. METHODS: Ten feet of 10 patients with hallux valgus and 10 feet of 10 healthy volunteers with no foot disorders were examined. All participants were women. Weight-bearing (a load equivalent to body weight) and non-weight-bearing CT scans were made with use of a device that we developed. Orthogonal coordinate axes were set and a 3-D model was reconstructed. Each joint of the first ray was aligned with the respective proximal bone, and 3-D displacement of the distal bone relative to the proximal bone under loading was quantified. RESULTS: At the talonavicular joint, significantly greater dorsiflexion of the navicular relative to the talus was observed in the hallux valgus group compared with the control group. At the medial cuneonavicular joint, the hallux valgus group showed significantly greater eversion and abduction of the medial cuneiform relative to the navicular. At the first TMT joint, the hallux valgus group showed significantly greater dorsiflexion, inversion, and adduction of the first metatarsal relative to the medial cuneiform. At the first metatarsophalangeal joint, the hallux valgus group showed significantly greater eversion and abduction of the first proximal phalanx relative to the first metatarsal (all p < 0.05). CONCLUSIONS: The results of this study suggest that loading of the foot causes significant 3-D displacement not only at the TMT joint but also at the other joints of the first ray. There is increased mobility in the first ray in patients who have hallux valgus. SN - 1535-1386 UR - https://www.unboundmedicine.com/medline/citation/28145956/Evaluation_of_First_Ray_Mobility_in_Patients_with_Hallux_Valgus_Using_Weight_Bearing_CT_and_a_3_D_Analysis_System:_A_Comparison_with_Normal_Feet_ L2 - https://doi.org/10.2106/JBJS.16.00542 DB - PRIME DP - Unbound Medicine ER -