Understanding Radiographic Measurements Used in Foot and Ankle Surgery

Lau, Brian C.; Allahabadi, Sachin; Palanca, Ariel; Oji, David E.

doi:10.5435/jaaos-d-20-00189

Cited by 43 publications

(19 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 A normal TI value is 0°, and generally <2° is considered the normal range. 24,31 For the TPI and TT, the closer to the horizontal grid, the more normal the values, and the normal range goes up to 2°. 24,31…”

Section: Methodsmentioning

confidence: 99%

“…24,31 For the TPI and TT, the closer to the horizontal grid, the more normal the values, and the normal range goes up to 2°. 24,31…”

Section: Methodsmentioning

confidence: 99%

“…5 A normal TI value is 0°, and generally \2°i s considered the normal range. 24,31 For the TPI and TT, the closer to the horizontal grid, the more normal the values, and the normal range goes up to 2°. 24,31 Hindfoot alignment was evaluated using the varus-valgus angle (VVA) of the calcaneus as reported by Ikoma et al 13 (Figure 3): the angle formed between (1) the axis of the tibia and (2) the line between the midpoints of the tibial shaft, from the top of the sustentaculum tali to the lateral-inferior end of the posterior facet of the calcaneus.…”

Section: Radiographic Evaluationmentioning

confidence: 99%

See 2 more Smart Citations

Ankle Pain After Medial Opening-Wedge High Tibial Osteotomy in Patients With Knee Osteoarthritis and Concurrent Ankle Osteoarthritis

Kim

Kang

et al. 2023

Am J Sports Med

View full text Add to dashboard Cite

Background: Medial opening-wedge high tibial osteotomy (MOWHTO) in patients with varus knee osteoarthritis (OA) causes changes to ankle and hindfoot alignment. However, the compensatory ability of the ankle and hindfoot varies according to the severity of ankle OA. Purpose: To investigate whether the changes in ankle symptoms and ankle and hindfoot alignments differ after MOWHTO according to the severity of preoperative ankle OA. Study design: Case-control study; Level of evidence, 3. Methods: The data of 130 patients who were followed for ≥4 years were reviewed. Patients were classified into 2 groups according to their severity of ankle OA: group 1, modified Kellgren-Lawrence grade 0 and 1; group 2, grade ≥2. Four radiographic parameters were examined to evaluate ankle alignment: tibial plafond inclination, talar tilt, talar inclination, and tibial surface angle. The hindfoot alignment was evaluated using the varus-valgus angle (VVA) of the calcaneus. A visual analog scale (VAS) was used to evaluate ankle pain. The patient-reported outcome measure of the knee joint was the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score. Results: There were 110 patients in group 1 and 20 patients in group 2. In group 2, the change in talar inclination after MOWHTO was significantly greater and the changes in tibial plafond inclination, talar tilt, and VVA were significantly smaller compared with in group 1 (all P < .05). Ankle pain VAS scores were more severe in group 2 than in group 1 pre- and postoperatively (all P < .05), and group 2 reported that ankle pain worsened postoperatively ( P < .05). In both groups, knee WOMAC scores improved, and there were no differences between groups pre- or postoperatively (all P > .05). A multivariate regression analysis demonstrated that a small VVA change (odds ratio, 0.775; P = .027) and severe OA grade of the ankle joint preoperatively (Kellgren-Lawrence grades 2-4 vs 0 and 1; odds ratio, 4.241 [ P = .046]) predicted increased ankle pain VAS scores after MOWHTO. Conclusion: Although the patient-reported outcome measures for the knee joint improved irrespective of the presence of ankle OA, ankle pain worsened after MOWHTO in patients with ankle OA. Inadequate compensatory change in hindfoot alignment increased ankle pain in these patients.

show abstract

Section: Methodsmentioning

confidence: 99%

“…24,31 For the TPI and TT, the closer to the horizontal grid, the more normal the values, and the normal range goes up to 2°. 24,31…”

Section: Methodsmentioning

confidence: 99%

Section: Radiographic Evaluationmentioning

confidence: 99%

See 1 more Smart Citation

Ankle Pain After Medial Opening-Wedge High Tibial Osteotomy in Patients With Knee Osteoarthritis and Concurrent Ankle Osteoarthritis

Kim

Kang

et al. 2023

Am J Sports Med

View full text Add to dashboard Cite

show abstract

“…Secondly, the development of hallux valgus and ulcerations on the adjacent toes were correlated. A HVA of ≥ 15 degrees [ 13 ], an IMA of ≥ 9 degrees [ 17 ], a DMAA of ≥ 10 degrees [ 17 ] and a HVI of ≥ 8 degrees [ 17 ] were considered pathognomonic for hallux valgus. Further outcome parameters were the association between development of a hallux valgus deformity and the following aspects: the BMI, the shape of the first metatarsal head (flat, round, chevron type), the supporting effect of a totally preserved second metatarsal bone, and the progression of a preexisting hallux valgus deformity.…”

Section: Methodsmentioning

confidence: 99%

Ulcer occurrence on adjacent toes and hallux valgus deformity after amputation of the second toe in diabetic patients

Unterfrauner

Andronic²,

Viehöfer³

et al. 2023

J Orthop Surg Res

View full text Add to dashboard Cite

Background Amputation of the second toe is associated with destabilization of the first toe. Possible consequences are hallux valgus deformity and subsequent pressure ulcers on the lateral side of the first or on the medial side of the third toe. The aim of this study was to investigate the incidence and possible influencing factors of interdigital ulcer development and hallux valgus deformity after second toe amputation. Methods Twenty-four cases of amputation of the second toe between 2004 and 2020 (mean age 68 ± 12 years; 79% males) were included with a mean follow-up of 36 ± 15 months. Ulcer development on the first, third, or fourth toe after amputation, the body mass index (BMI) and the amputation level (toe exarticulation versus transmetatarsal amputation) were recorded. Pre- and postoperative foot radiographs were evaluated for the shape of the first metatarsal head (round, flat, chevron-type), the hallux valgus angle, the first–second intermetatarsal angle, the distal metatarsal articular angle and the hallux valgus interphalangeal angle by two orthopedic surgeons for interobserver reliability. Results After amputation of the second toe, the interdigital ulcer rate on the adjacent toes was 50% and the postoperative hallux valgus rate was 71%. Neither the presence of hallux valgus deformity itself (r = .19, p = .37), nor the BMI (r = .09, p = .68), the shape of the first metatarsal head (r = − .09, p = .67), or the amputation level (r = .09, p = .69) was significantly correlated with ulcer development. The interobserver reliability of radiographic measurements was high, oscillating between 0.978 (p = .01) and 0.999 (p = .01). Conclusions The interdigital ulcer rate on the first or third toe after second toe amputation was 50% and hallux valgus development was high. To date, evidence on influencing factors is lacking and this study could not identify parameters such as the BMI, the shape of the first metatarsal head or the amputation level as risk factors for the development of either hallux valgus deformity or ulcer occurrence after second toe amputation. Trial Registration: BASEC-Nr. 2019-01791

show abstract

“…5.0): i) Calcaneal pitch angle (CPT); 2 ii) Meary's angle (MA); 3 iii) Lateral talocalcaneal angle (LTC); 4,5 iv) Kite angle (KA); 5 v) 1st metatarsal-talus angle or anteroposterior Meary's angle (T-M1). 2,5 The statistical analysis of the data was performed by dedicated software, SPSS 24.0 (IBM SPSS Statistics Inc., USA).…”

Section: Methodsmentioning

confidence: 99%

Subtalar arthroeresis with peek endorthesis in juvanile flexible flafoot: Short-term results

Riva¹,

Monestier²,

Colombo

et al. 2022

Pediatr Med Chir

View full text Add to dashboard Cite

A successful and minimally invasive treatment for adolescent flexible flatfoot is subtalar arthroeresis. This study examines the short-term results of subtalar arthroereisis with a new PEEK device (Pit’Stop®); additional research will be required to determine the device’s true potential, but the preliminary findings are very encouraging, with a high success rate and a low complication rate (0.08).

show abstract

Understanding Radiographic Measurements Used in Foot and Ankle Surgery

Cited by 43 publications

References 51 publications

Ankle Pain After Medial Opening-Wedge High Tibial Osteotomy in Patients With Knee Osteoarthritis and Concurrent Ankle Osteoarthritis

Ankle Pain After Medial Opening-Wedge High Tibial Osteotomy in Patients With Knee Osteoarthritis and Concurrent Ankle Osteoarthritis

Ulcer occurrence on adjacent toes and hallux valgus deformity after amputation of the second toe in diabetic patients

Subtalar arthroeresis with peek endorthesis in juvanile flexible flafoot: Short-term results

Contact Info

Product

Resources

About