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Strategies in Trauma and Limb... 2023Juvenile hallux valgus (JHV) is a forefoot deformity that causes pain and functional limitation. Treatment poses a challenge in terms of the optimal technique and timing... (Review)
Review
BACKGROUND
Juvenile hallux valgus (JHV) is a forefoot deformity that causes pain and functional limitation. Treatment poses a challenge in terms of the optimal technique and timing of intervention. A systematic review of the literature on the use of growth modulation in treating JHV was conducted.
MATERIALS AND METHODS
The literature review was performed using PubMed and EMBASE searches for articles investigating growth modulation in the treatment of JHV published before December 1st, 2021. Seven articles were included in the final review that matched the inclusion and exclusion criteria. The primary outcomes included the degree of correction of hallux valgus angle and intermetatarsal angle. A qualitative assessment of the articles was done due to the heterogeneity of the growth modulation methods used in these articles.
RESULTS
A total of 135 feet from 78 patients were included from the reviewed articles. Growth modulation methods included temporary screw lateral hemiepiphysiodesis of the first metatarsal, lateral drilling hemiepiphysiodesis of the first metatarsal, and a trephine plug removal of the lateral epiphysis followed by cancellous bone graft insertion. The degree of correction of the hallux valgus and intermetatarsal angles were found to be statistically significant in all studies, regardless of the technique.
CONCLUSION
Growth modulation for JHV by lateral hemiepiphysiodesis using minimally invasive techniques produced favourable radiologic outcomes with some evidence of clinical improvement. Larger, prospective and comparative studies with objective clinical outcome measures may further consolidate this surgical approach as a mean to treating this deformity.
HOW TO CITE THIS ARTICLE
AlZeedi M, Park JP, Marwan Y, . Growth Modulation for the Treatment of Juvenile Hallux Valgus: A Systematic Review of Literature. Strategies Trauma Limb Reconstr 2023;18(1):51-55.
PubMed: 38033921
DOI: 10.5005/jp-journals-10080-1579 -
Foot (Edinburgh, Scotland) Mar 2021The precise planning of metatarsal (MT) I length in hallux valgus surgery is important. However, currently no tool exists which allows the surgeon to reliably predict...
BACKGROUND
The precise planning of metatarsal (MT) I length in hallux valgus surgery is important. However, currently no tool exists which allows the surgeon to reliably predict this parameter.
METHODS
30 virtual 3-dimensional hallux valgus surgeries were performed on varied deformation models based on cadaveric feet scans. The shortening of the first ray during distal metatarsal I osteotomy for different osteotomy angles were measured. An algebraic 2-dimensional calculation was done and compared to the results obtained from the 3-dimensional models.
RESULTS
Inadvertent shortening of the first metatarsal bone can be as much as 8 mm depending on the amount of intermetatarsal angle (IMA) correction and osteotomy angle. Comparison of the 3 dimensional simulations and the 2 dimensional model resulted in a very strong correlation (R > 0.99 p < 0.00001). Based on our findings an anterior pointing osteotomy of approximately 10° is necessary to restore the length in distal metatarsal I hallux valgus surgery.
CONCLUSION
A slight misdirection of the osteotomy plane in distal hallux valgus surgery may result in relevant unwanted alterations in first metatarsal bone length and triangulation by eye is insufficient in this complex geometrical situation without appropriate planning. The present study provides surgeons a practical tool to plan and control the change of first metatarsal length during hallux valgus procedure through exact orientation of the osteotomy angle. If no alteration of length is intended, it may be generalized that an anterior direction of the cut relative to the second metatarsal bone will preserve the length of the first metatarsal bone.
Topics: Foot; Hallux Valgus; Humans; Metatarsal Bones; Osteotomy; Radiography
PubMed: 33516117
DOI: 10.1016/j.foot.2020.101774 -
Surgical and Radiologic Anatomy : SRA Feb 2023It was aimed to reveal whether the positions and dimensions of the extrinsic and intrinsic muscle tendons related to the hallux around the first metatarsal bone are...
PURPOSE
It was aimed to reveal whether the positions and dimensions of the extrinsic and intrinsic muscle tendons related to the hallux around the first metatarsal bone are affected by the severity of hallux valgus (HV) and whether tendon positional changes and tendon sizes affect each other.
METHODS
In formalin-fixed 46 feet, three HV angle subgroups (normal, mild, and moderate/severe) were defined. Width, thickness, and cross-sectional area (CSA) of tendons of the extensor hallucis longus (EHL) and brevis (EHB), abductor hallucis (AH), and flexor hallucis longus (FHL) were measured. On the clock model created in coronal plane, positional variations of each tendon were determined.
RESULTS
In the moderate/severe HV group, thickness and CSA of the EHB, width and CSA of the AH were smaller, compared to mild HV. Width and CSA of the FHL were smaller in moderate/severe HV than in the normal. Regardless of HV, the width and CSA of the FHL were greater in cases where the FHL was located more lateral, and the width of both FHL and AT were greater in cases where AH located was more plantar.
CONCLUSION
The smaller tendon size of two intrinsic (one plantar and one dorsal) and one extrinsic muscle in the moderate/severe HV group indicates that changes in the tendons are evident in cases of high severity of HV but not in cases of mild HV. Accordingly, the changes do not appear to be due to a factor limited to only one aspect of the foot. It is recommended to consider the possible biomechanical effects of AH, FHL, and EHB tendon dimensional weakness in surgical planning in moderate/severe HV cases.
Topics: Humans; Hallux Valgus; Metatarsal Bones; Tendons; Foot; Muscle, Skeletal; Hallux
PubMed: 36581705
DOI: 10.1007/s00276-022-03066-8 -
Foot & Ankle International Feb 2023Recurrence of the hallux valgus deformity has various causes, and the incomplete reduction of sesamoids may be one of the important issues. However, we have seen several...
BACKGROUND
Recurrence of the hallux valgus deformity has various causes, and the incomplete reduction of sesamoids may be one of the important issues. However, we have seen several patients with postoperative lateral sesamoid displacement on anteroposterior (AP) standing radiographs who did not experience hallux valgus recurrence. Therefore, we hypothesized that lateral displacement of the sesamoid on AP standing radiographs does not cause hallux valgus recurrence.
METHODS
The study included 269 feet (185 patients) with hallux valgus treated with distal chevron metatarsal osteotomy. Mean patient age was 64.26 (range, 15-80) years. Patients were followed up for an average of 33.85 (range, 12-228) months between April 2002 and December 2019. The patients were divided into 4 groups, according to the presence or absence of hallux valgus recurrence and sesamoid reduction.
RESULTS
During outpatient follow-up, we discovered 99 feet (42.1%) in which hallux valgus did not recur despite lateral sesamoid displacement (grade IV-VII) on AP standing radiographs. Hallux valgus angle (HVA, 2.7 to 7.9 degrees), intermetatarsal angle (IMA, 4.6 to 6.2 degrees), and sesamoid grades (2.1 to 3.5) all deteriorated over time after surgery, and each indicator was statistically significantly altered, and changes in the 3 indicators had a statistically significant positive correlation. Changes in HVA and IMA between feet with and without sesamoid reduction on AP standing radiographs increased over time, with the differences in HVA (2.9 degrees) and IMA (0.9 degrees) being significant at final follow-up ( < .05 for each). Regardless of whether sesamoid reduction was achieved on AP standing radiographs, the final analysis showed that HVA and IMA in both groups worsened over time. Further, there were no differences between the 2 groups in the patterns of change over time.
CONCLUSION
In our cohort, postoperative sesamoid position on AP standing radiographs was not associated with hallux valgus recurrence based on radiographic criteria.
LEVEL OF EVIDENCE
Level III, retrospective comparative study.
Topics: Humans; Adolescent; Young Adult; Adult; Middle Aged; Aged; Aged, 80 and over; Hallux Valgus; Retrospective Studies; Metatarsal Bones; Radiography; Bunion; Osteotomy; Treatment Outcome
PubMed: 36576025
DOI: 10.1177/10711007221140868 -
Foot & Ankle Orthopaedics Jan 2020Hallux valgus can alter load bearing in the foot leading to abnormal forces on the second toe. The purpose of this study was to determine demographic and radiographic...
BACKGROUND
Hallux valgus can alter load bearing in the foot leading to abnormal forces on the second toe. The purpose of this study was to determine demographic and radiographic factors associated with second ray hammertoes in hallux valgus using 3-dimensional weightbearing CT scans.
METHODS
Seventy-one patients who underwent a modified Lapidus procedure for hallux valgus with preoperative weightbearing CT scans were separated into 2 groups: (1) hallux valgus only (47 feet) and (2) hallux valgus with second ray hammertoe (29 feet). Preoperative age, body mass index (BMI), sex, hallux valgus angle (HVA), intermetatarsal angle (IMA), absolute and effective metatarsal (MT) lengths, ratios between metatarsal lengths, Meary angle, metatarsus adductus angle (MAA), and pronation were measured. Mean values of continuous variables were compared and both simple and multivariable logistic regression models were used to evaluate associations between variables and hammertoe occurrence.
RESULTS
Patients in the hammertoe group were found to be significantly older and have higher BMIs, HVAs, effective second MT lengths, IMAs, and more apex plantar Meary angles (all < .05). The multivariable analysis demonstrated that a higher IMA and a more apex plantar Meary angle were the only significant predictors of second ray hammertoe risk ( = .03 and = .01, respectively) once corrected for age and BMI.
CONCLUSION
Significant associations were found between older age, higher BMI, and more severe deformity and the occurrence of hammertoe in hallux valgus patients. These results may help clinicians counsel hallux valgus patients about the risk of developing an advanced hammertoe deformity.
LEVEL OF EVIDENCE
Level III, retrospective comparative series.
PubMed: 35097369
DOI: 10.1177/2473011420909088 -
Foot (Edinburgh, Scotland) Mar 2023Bone morphology is one of the factors involved in hallux valgus development. However, previous studies have not evaluated the overall bone shape in three dimensions....
Comparison of the three-dimensional bone morphology of the first proximal phalanx and first metatarsal between normal and hallux valgus foot using the homologous model technique.
Bone morphology is one of the factors involved in hallux valgus development. However, previous studies have not evaluated the overall bone shape in three dimensions. This study aimed to compare the overall shape of the first proximal phalanx and first metatarsal in hallux valgus with those of normal feet.Homologous models were created from computed tomography data of the first proximal phalanx and first metatarsal of 75 healthy men and 53 women in the control group and 10 men and 71 women in the hallux valgus group. Principal component analysis was performed to examine the differences in bone morphology between the control and hallux valgus groups. In men and women with hallux valgus, the proximal articular surface of the first proximal phalanx was characterized by a more lateral inclination and torsion of the pronated first metatarsal. Additionally, the first metatarsal head was characterized by a more lateral inclination in male hallux valgus. This study is the first to reveal the morphological characteristics of the first metatarsal and first proximal phalanx in hallux valgus as a whole bone using a homologous model technique. These characteristics are considered possible causes of hallux valgus development. The shapes of the first proximal phalanx and first metatarsal in hallux valgus were different from those in normal feet. This finding should be useful when considering the pathogenesis and treatment development for hallux valgus.
Topics: Humans; Male; Female; Hallux Valgus; Metatarsal Bones; Radiography; Foot; Lower Extremity
PubMed: 36796254
DOI: 10.1016/j.foot.2023.101968 -
Acta Ortopedica Brasileira 2023Pronation of the first metatarsal in hallux valgus has recently been discussed among foot and ankle surgeons. This study aimed to evaluate the potential radiographic...
OBJECTIVE
Pronation of the first metatarsal in hallux valgus has recently been discussed among foot and ankle surgeons. This study aimed to evaluate the potential radiographic correction of moderate and severe hallux valgus using the percutaneous Chevron and Akin (PECA) technique.
METHODS
We evaluated 45 feet in 38 patients (mean age 65.3 years old [36 - 83]; 4 men; 34 women; 7 bilateral) who underwent surgical correction using the PECA technique. The radiographic images evaluated were anteroposterior radiographs obtained pre- and postoperatively at least 6 months after surgery, including the metatarsophalangeal angle, the intermetatarsal angle, pronation of the first metatarsal, displacement of the distal fragment, medial sesamoid position and bone union.
RESULTS
All parameters evaluated showed significant postoperative improvement, including correction of pronation of the first metatarsal (p < .05) and position of the sesamoid (p < .05). There was a union of osteotomies in all feet. No complications were observed, such as screw loosening or necrosis of the first metatarsal head.
CONCLUSION
The PECA technique can correct pronation of the first metatarsal in moderate and severe hallux valgus, and other deformity-associated parameters. Level of Evidence IV; Case Series.
PubMed: 37323155
DOI: 10.1590/1413-785220233102e265206 -
Revista Brasileira de Ortopedia Aug 2021To present the clinical and radiographic results of hallux valgus surgical correction using four percutaneous techniques, chosen according to a predefined...
To present the clinical and radiographic results of hallux valgus surgical correction using four percutaneous techniques, chosen according to a predefined radiographic classification. We prospectively evaluated 112 feet in 72 patients with hallux valgus operated over the course of 1 year. Percutaneous distal soft tissue release (DSTR) and the Akin procedure (DSTR-Akin) were performed in mild cases. In mild to moderate hallux valgus with distal metatarsal joint angle > 10°, we added the Reverdin-Isham (RI) osteotomy. In moderate cases with joint incongruity, we performed the percutaneous chevron (PCH). Finally, a Ludloff-like percutaneous proximal osteotomy fixed (PPOF) with a screw was proposed in severe cases with an intermetatarsal angle (IMA) > 17°. According to these criteria, 26 DSTRs-Akin, 36 PCHs, 35 RIs, and 15 PPOFs were performed. The mean follow-up was of 17.2 months (range: 12 to 36 months). The mean age at operation was 58.8 years (range: 17 to 83 years), and 89% of the patients were female. The mean preoperative hallux valgus angle (HVA) and the IMA decreased from 21° to 10.2° and from 11.2° to 10.3° respectively in the DSTR-Akin. In the RI, the mean HVA decreased from 26.6° to 13.7°, and the IMA, from 11.2° to 10.3°; in the PCH, the mean HVA decreased from 31° to 14.5°, and the IMA decreased 14.9° to 10.7°; as for the PPOF, the mean HVA decreased from 39.2° to 17.7°, and the IMA, from 11.8° to 6.8°. The average ankle and hindfoot score of the American Orthopaedic Foot and Ankle Society (AOFAS) increased from 49.2 to 88.6. The rate of complications was of 11%. Our treatment protocol does not differ much from the classic ones, with similar results as well. We have as advantages less aggression to soft tissues and better cosmetic results. Level of Evidence: level IV, prospective case series.
PubMed: 34483396
DOI: 10.1055/s-0040-1721367 -
Skeletal Radiology Sep 2023Hallux valgus surgery concerns many patients and various techniques are performed. The assessment of the first toe deformity correction is mainly visual and imaging is... (Review)
Review
Hallux valgus surgery concerns many patients and various techniques are performed. The assessment of the first toe deformity correction is mainly visual and imaging is required to analyze the intermetatarsal angle and depict complications. However, it is often difficult for the radiologist to distinguish normal and pathological conditions, especially in case of osteotomies which may show various aspects of bone mineralization and healing. In this review, the most relevant imaging features of the post-operative hallux valgus are summarized.
Topics: Humans; Hallux Valgus; Osteotomy; Foot Deformities; Diagnostic Imaging; Radiologists; Metatarsal Bones; Treatment Outcome; Retrospective Studies
PubMed: 36949167
DOI: 10.1007/s00256-023-04322-7 -
The Journal of Foot and Ankle Surgery :... 2020Hallux valgus is one of the most common and painful deformities, occurring due to adductor/abductor imbalance of the big toe. Many structural foot disorders have been...
Hallux valgus is one of the most common and painful deformities, occurring due to adductor/abductor imbalance of the big toe. Many structural foot disorders have been suggested as the cause of hallux valgus deformity. In this study, we aimed to show the relationship between hallux valgus and pes planus in adult males. A total of 213 patients were included in this study between May 2013 and May 2014. 54 patients with hallux valgus angle (HVA) >20° and intermetatarsal angle (IMA) >9° were evaluated in the case group and 159 patients randomly selected from those admitted for a recent foot ankle trauma with the HVA <15° and IMA <9° were the control group. All patients' HVA, IMA, and talonavicular coverage angle on anteroposterior (AP) foot radiographs and talar-first metatarsal angle (Meary's angle), calcaneal pitch angle, and lateral talocalcaneal angle on lateral foot radiographs were measured. There was no significant difference in talonavicular and Meary's angles between the groups. Calcaneal pitch angle was significantly lower in the case group, whereas talonavicular angle was higher in the control group. Calcaneal pitch angle and lateral talocalcaneal angle showed significant negative correlation with HVA and IMA. There are few reports in the literature about the relationship between pes planus and hallux valgus. Our results strongly showed a high correlation between pes planus and hallux valgus. Further larger patient cohort studies are needed to support our results.
Topics: Adult; Calcaneus; Case-Control Studies; Flatfoot; Hallux Valgus; Humans; Male; Radiography; Range of Motion, Articular; Risk Factors; Weight-Bearing; Young Adult
PubMed: 31866373
DOI: 10.1053/j.jfas.2019.09.037