Inconsistency in the Reporting Terminology of Adverse Events and Complications in Hallux Valgus Reconstruction: A Systematic Review

Surgical complications are inevitable in any surgical subspecialty. Throughout the years, many classification systems have been developed to better understand and report such complications. The aim of this systematic review is to investigate the variability and frequency of reporting terms used to describe adverse events and complications in hallux valgus reconstruction. We hypothesized that the terms used would be highly inconsistent, which further promotes a need for a standardized terminology reporting system. Studies related to hallux valgus reconstruction outcomes that met our predetermined inclusion criteria were investigated to identify and report the related adverse terms and complications. Adverse terms and complications were grouped into 9 categories. Of the 142 studies included, 376 distinct terms that described adverse events or complications related to hallux valgus reconstruction were identified. Of these, 73.4% (276/376) were mentioned only once in their respective studies. Five of 376 terms were mentioned in at least 25% of the papers, and only 2 of 376 were mentioned in at least 50%. The most frequently reported adverse events were "Recurrence," mentioned in 77 of 142 studies (54%), followed by "Nonunion," mentioned in 76 of 142 studies (53%). The most reported category was "Bone/Joint" with 135 related terms, mentioned in 135 of 376 of the papers (95.1%). The terminology used in reporting adverse events and complications in surgical hallux valgus correction was highly inconsistent and variable. This represents yet another barrier in accurate reporting of these terms, and subsequently a difficult analysis of the outcomes related to hallux valgus reconstruction. To overcome these challenges, we suggest developing a standardized terminology reporting system.Levels of Evidence: Level III; systematic review of Level III studies and above.

Tension Side Fixation for Lapidus Arthrodesis: A Retrospective Analysis

Moderate to severe hallux valgus deformity often requires a Lapidus procedure (first-tarsometatarsal arthrodesis). Traditional methods include a dorsal approach with dorsal or medial fixation. However, studies demonstrate plantar/tension-side fixation, provides superior load to failure and fixation strength. This could improve outcomes, address comorbidities, and accelerate postoperative protocols; however, a paucity exists for patient outcomes in the literature regarding tension-side-fixation. The purpose of this study is to report the outcomes for tension-side Lapidus fixation. A retrospective analysis was performed of 81 patients who underwent tension-side-fixation Lapidus. Data collection consisted of: time to weight-bear, time to return to regular shoegear, hardware removal rate, revision rate, recurrence rate, relative metatarsal shortening, and nonunion rates. Mean patient age was 44 years old (range: 16-82). There were 65 females, and 16 males. The average time to weightbearing was 10.4 days. Time to return to regular shoegear was a mean of 6 weeks (ranging 2-10 weeks). Hardware removal rate was 1.2%. The recurrence rate was 8.6% (7 of 81 patients) and 5 of those 7 patients experienced recurrence before frontal-plane-correction was adopted by the surgeon. The revision rate was 0% and despite 8.6% recurrence, no patients were dissatisfied or requested a revisional procedure. The first-metatarsal shortening was a mean of 0.42 mm. The complications were as follows: 7% superficial dehiscence, 1.2% superficial wound infection, 0% deep infection, and 1.2% asymptomatic nonunion. This study suggests tension-side-fixation for Lapidus arthrodesis may allow for safe early return to weightbearing, early return to regular shoegear, low hardware removal rate, low revision rate, low metatarsal shortening, and low nonunion rate.

Combined Distal Metatarsal and Akin Osteotomies for Concomitant Metatarsophalangeal and Interphalangeal Hallux Valgus: Clinical and Radiological Outcomes

Combined metatarsal and Akin-type proximal phalanx osteotomies represent a surgical solution for concomitant metatarso-phalangeal and inter-phalangeal hallux valgus. This retrospective observational study aimed to evaluate clinical and radiographic outcomes following combined distal linear metatarsal and Akin osteotomies. The study included 42 feet from 37 patients, with a mean follow-up of 27.1 (range 24-37) months. Mean surgical time was 16.54 ± 4.17 minutes. Pre- and postoperative clinical scores and radiological parameters were collected. Positive outcomes with a low recurrence and complications rates were reported. A statistically significant improvement in the Manchester-Oxford foot questionnaire, the EuroQol 5D-5L dimensions instrument, the visual analogue scale, the intermetatarsal angle, the hallux valgus angle, the distal metatarsal articular angle, and the interphalangeal angle correction was observed. Despite the results reported, further prospective studies are needed to identify the most suitable patients for this combined osteotomy approach.

The Triplanar Hallux Abducto Valgus Classification System: Is it Valid?

Historically, 2-dimensional radiographic study techniques have been used to classify deformity and guide treatment of hallux valgus deformities in the transverse plane. Recently, a triplanar hallux abducto valgus classification system was proposed. The key elements of this classification system are the pathologic alignments in 3 anatomic planes. The triplanar hallux abducto valgus classification system is intended to clarify the deformity and apply a triplanar anatomic algorithm for treatment. To our knowledge, this classification system has not been validated. Our objective was to assess reliability of the triplanar hallux valgus classification system. Patients with hallux abducto valgus were identified from a foot and ankle registry. Digital radiographs were assembled in a digital slide presentation. The eligibility criteria required complete radiographic studies and represented varying degrees of hallux abducto valgus. The reviewers included 3 board-certified, fellowship-trained orthopedic foot and ankle surgeons. Each reviewer independently classified the hallux abducto valgus deformity for a total of 75 observations. After an 8-week washout period, the order of the hallux abducto valgus cases was randomized in the digital slide presentation and redistributed to the reviewers. The average kappa value from 3 readers was 0.241 with 95% CI (0.093-0.374), indicating a fair agreement. The inter-reader agreement was 0.046 with 95% CI (-0.041 to 0.112), showing poor agreement between readers. Our results indicate the triplanar hallux abducto valgus is not a reliable classification system. While this is the first known triplanar hallux abducto valgus classification system, it lacks prognostic value and reliability.

What Do Patients Report Regarding Their Real-World Function Following Concurrent Arthrodesis of the First Tarsometatarsal and First Metatarsophalangeal Joints

First metatarsal phalangeal joint and the first Tarsometatarsal arthrodesis have both been used for deformity correction and treatment of pain and arthritis. Concomitant arthrodesis of the first metatarsophalangeal and first tarsometatarsal joints (Double First Ray Arthrodesis) has rarely been described. We surveyed 29 patients who underwent double first-ray arthrodesis for primary or revision correction of hallux valgus. A custom questionnaire was used to assess their activities of daily living and sports activity at a mean follow-up of 19.6 months (median 18.4 months). Secondary endpoints were return to activity, deformity correction, and arthrodesis healing rate. The primary outcomes showed an excellent return to activities of daily living with 96.6% of patients capable of walking as much as they liked after surgery at a normal pace. About 96.6% reported they felt that their surgery was successful, they had no pain, and the loss of motion at the joint fusion sites did not affect their ability to perform daily activities. Protected walking in a fracture boot was initiated at a mean (SD) of 9.8 (9.9) days. Return to an athletic shoe occurred at a mean (SD) of 44.2 (11.7) days. Full unrestricted activity was at a mean (SD) of 105.2 (19.3) days with 65% of the patient group reporting that their recovery was easier than expected. There was 1 nonunion and no other complications. This data set supports the hypothesis that patients undergoing double first-ray arthrodesis can return to activities of daily living and sports with and low complication rate.

Radiological Analysis of the Syndesmosis Concept in Metatarsus Primus Varus and Hallux Valgus Deformities Recurrence Prevention

Hallux valgus (HV) is a common deformity of the foot. Its postoperative recurrence is not uncommon and is closely related to the recurrence of its underlying metatarsus primus varus (MPV) deformity. The syndesmosis procedure uses 1 to 2 intermetatarsal cerclage sutures to realign the first metatarsal and then induces a biological bonding between the 2 metatarsals to prevent the MPV deformity from recurring. This radiological study aimed to assess its effectiveness in long-term MPV and HV deformities recurrence prevention. Ninety-two feet of 51 consecutive patients had syndesmosis procedures that were prospectively followed up for more than 1 y and up to 14 y, averaging 100.5 (SD 45.2) months. Patients underwent X-ray examinations regularly at fixed intervals of their feet. We used Hardy's methods in measuring the intermetatarsal angle (IMA), hallux valgus angle (HVA), and medial sesamoid position from standing foot X-rays. More than 450 relevant X-ray and photo images were submitted as Supplementary Material for online viewing and reference. There was a significant final correction of IMA from 14.30° (SD 2.70) to 6.70° (SD 1.75) (p < .0001). There was no significant increase in IMA after the sixth postoperative month to their final follow-up endpoints, regardless of their lengths. There was a significant final correction of HVA from 31.95° (SD 7.45) to 19.1° (SD 7.45) (p < .0001). This study reconfirmed past findings that the MPV deformity could be corrected without osteotomies. Creating a syndesmosis-like intermetatarsal bonding was effective for long-term MPV recurrence prevention. Three feet had postoperative stress fracture of the second metatarsal. However, the HV deformity correction was less satisfactory, and the reasons were explained.

Hallux Valgus Bunion Splint: Surgical Dressing Technique

BACKGROUND

Hallux valgus is a common condition with a complex etiology resulting in numerous treatment options. Recurrence of the deformity can occur following correction. Surgical technique and possibly also postoperative care play a role in reducing recurrence rates. This article highlights a postoperative surgical dressing technique which allows for semirigid support during the immediate postoperative period.

METHODS

A wooden tongue depressor placed along the medial border of the hallux comprises the primary support for the dressing. The rigidity of the tongue depressor allows for the hallux to be drawn toward the depressor, encouraging neutral alignment of the hallux. Dressings are removed 2 weeks postoperatively, with new dressings applied in similar fashion and maintained in place until 6 weeks postoperatively.

RESULTS

Based upon our observations, our surgical dressing technique provides sufficient support following hallux valgus correction surgery while being straightforward to replicate without the need for frequent dressing changes. The dressing materials are of negligible cost and are typically readily available. No associated wound complications have been observed.

CONCLUSIONS

We present an easily replicable and affordable option for postoperative hallux valgus correction surgical dressings.

LEVELS OF EVIDENCE

Level V: Expert Opinion.

Immediate Weightbearing Following First Metatarsal Phalangeal Joint Arthrodesis With 2 Nickel Titanium Alloy Staples

The use of staples has been shown to be a reasonable fixation technique to achieve stability of a first MTPJ arthrodesis. Although it has been shown to be a weaker construct than crossed screws or plate and screw combinations, their ease of insertion, low profile, and stability make them a desirable choice for first MTPJ arthrodesis fixation. However, because of this relative weakness, the question remains whether immediate weightbearing when using staples is advisable. The aim of this study is to determine whether the use of 2 nickel-titanium alloy (NITINOL) staples, placed at 90 degrees to one another is a stable enough construct to support full, immediate weightbearing following first MTPJ arthrodesis. We performed a retrospective chart review of patients undergoing first MTPJ arthrodesis by a single surgeon utilizing 2 NITINOL staples placed at 90 degrees to one another. Patients were allowed to be fully weightbearing immediately postoperatively. Forty-seven of 50 (94%) patients achieved complete radiologic consolidation of fusion at 12 weeks, with only 3 requiring revision surgery for nonunion. All of the patients requiring revision surgery for nonunion, had preoperative diagnosis of hallux abducto valgus. We concluded that the use of 2 NITINOL staples placed at 90 degrees to one another is a viable option for first MTPJ arthrodesis, and immediate weightbearing does not increase rate of nonunion or incidence of revision surgery when compared to other fixation techniques.

Are sesamoids and proximal phalanx of metatarsus primus varus deformity of hallux valgus feet displaced? A radiological study

BACKGROUND

The hallux valgus deformity is made up of misaligned first metatarsal, hallux, and sesamoids. Their angular deformities are well-studied, but not their positional displacements. A few available reports claimed the proximal end of the proximal phalanx and sesamoids were not shifted medially along with the first metatarsal head. However, the general observation is otherwise. This study revisits the issue.

METHODS

A radiological study of 189 feet with and without the hallux valgus deformity was carried out to analyze the first metatarsal, hallux, and sesamoid positional changes in relation to the second metatarsal and among themselves. A total of 194 X-ray images with all relevant measurements that formed the raw database for this study were submitted for online viewing and reference.

RESULTS

There was a statistically significant change in the first metatarsal, hallux, and sesamoid positions of feet with hallux valgus deformity compared to normal feet. All have migrated medially but to different degrees. It was contrary to the past findings of no change in sesamoid and hallux positions.

CONCLUSIONS

We agree with past findings that the metatarsus primus varus deformity is directly related to the failed medial metatarsosesamoid ligament. We also believe in the failure of the deep 1-2 transverse metatarsal ligament responsible for the sesamoid migration.

Arthrodesis of the first metatarsophalangeal joint for severe hallux valgus in adolescents with cerebral palsy: A retrospective comparison study of three surgical techniques

Purpose

We compared the outcomes of arthrodesis of the first metatarsophalangeal joint for severe hallux valgus in 31 adolescents with cerebral palsy, using three different methods of fixation: K-wires, non-locking plates, and locking plates.

Methods

Clinical outcomes included time to weight-bearing, fusion rates and surgical complications. Radiographic assessment included comparing pre- and post-operative hallux valgus angles, intermetatarsal angles, interphalangeal angles, and lateral metatarsophalangeal angles. Patient-reported outcomes included pre- and post-operative visual analogue scales addressing bunion pain and concerns, difficulties with wearing shoes and braces, and difficulties with foot hygiene.

Results

Of the 31 adolescents (16 male), 10 patients had K-wire fixation, 11 had a non-locking dorsal plate, and 10 had fixation with a dorsal locking plate. Mean age at surgery was 16 years (12-18 years) and mean follow-up was 4 years (2.7-6.5 years). Patients with K-wire fixation had delayed weight-bearing and had more complications than those managed by dorsal plating. There were significant improvements in radiographic parameters (except interphalangeal angle) and in patient-reported outcomes, in all groups (p < 0.001). However, radiographic and clinical outcomes were better in the dorsal plating groups compared to the K-wire group.

Conclusion

Arthrodesis of the first metatarsophalangeal joint gave good correction of deformity with improvements in symptoms and radiographic parameters in adolescents with cerebral palsy. We recommend dorsal plating that allowed early weight-bearing and had fewer complications with better clinical and radiographic outcomes, than K-wire fixation.

Level of evidence

IV: Retrospective case series.

Lived experience of people with painful hallux valgus: A descriptive qualitative study

OBJECTIVE

Hallux valgus has a detrimental impact on health-related quality of life. Education is crucial for the management of all musculoskeletal conditions, although no previous research has evaluated the sources and quality of education accessed by patients with hallux valgus. Therefore, we aimed to evaluate the perceptions and attitudes of individuals with hallux valgus, including their educational experiences.

METHODS

A qualitative descriptive design was employed to gather data from individuals diagnosed with painful hallux valgus. Semi-structured interviews explored the perceptions, attitudes and educational experiences of participants. Interviews were recorded, transcribed verbatim, and analysed using the Framework Method. Respondent validation was used to ensure the rigour of the study findings.

RESULTS

Ten participants were interviewed, ages 26-72. Data analysis revealed five themes including the impact of hallux valgus, coping with hallux valgus, cause of hallux valgus, health professional support and education received. Hallux valgus was associated with a negative impact on health-related quality of life. Participants described a lack of high quality, accurate and reliable educational resources, and a variable experience with health professionals, which was often characterised by a lack of engagement and commitment and an overemphasis of referrals for specialist opinion.

CONCLUSION

Hallux valgus has a negative influence on well-being, including physical, mental, and social impacts. Health professionals should be responsive to patient needs and strive to implement person-centred care when indicated. There is also a need for the development of high-quality educational resources to help people with hallux valgus make informed decisions about their condition.

Correlation Analysis Between Clinical Hypermobility Measurement and Radiographic Parameters of the Hallux Valgus Deformity

The finding of "hypermobility" has conventionally been considered as a dichotomous categorical variable in both clinical practice and in the literature. In other words, it is defined as being either "present" or "absent" in patients with hallux valgus. Yet it might be far more likely that this represents a continuous variable described by a bell-shaped distribution. Therefore the objective of this investigation was to consider hypermobility as a continuous variable, and to compare the sagittal plane first ray motion to radiographic parameters commonly used in the evaluation of the hallux valgus deformity by means of correlation analyses. The radiographs and measurements of 86 feet were included and measurement of sagittal plane first ray motion was performed with the validated Klaue device. No statistically significant correlation was observed between the total first ray motion with the first intermetatarsal angle (Pearson correlation coefficient 0.106; p = .333), hallux valgus angle (Pearson correlation coefficient -0.106; p = .330), nor sesamoid position (Pearson correlation coefficient 0.155; p = .157). The results of this investigation uniquely consider measurement of hypermobility as a continuous variable, and find no correlation between first ray sagittal plane motion and radiographic parameters associated with the hallux valgus deformity. These results might indicate that although the concept of hypermobility has traditionally been coupled with presentation of the hallux valgus deformity, this might simply represent the result of a historical confirmation bias.

The Role of First Tarsometatarsal Joint Morphology and Instability in the Etiology of Hallux Valgus: A Case-Control Study

BACKGROUND

The morphology of foot joints is widely accepted as a significant factor in the development of various foot disorders. Nevertheless, the role of the first tarsometatarsal joint (TMT1) morphology in hallux valgus (HV) remains unclear, and its impact on TMT1 instability has not been fully explored. This study aimed to investigate the TMT1 morphology and its potential correlation with HV and TMT1 instability.

METHODS

Weightbearing computed tomography (WBCT) scans of 82 consecutive feet with HV and 79 controls were reviewed in this case-control study. Three-dimensional (3D) models of TMT1 were constructed using Mimics software and WBCT scans. The height of the TMT1 facet (FH) and the superior, middle, and inferior facet width (SFW, MFW, and IFW) were measured on anteroposterior view of the first metatarsal base. On the lateral view, the inferior lateral facet height and angle (ILFH and ILFA) were measured. TMT1 instability was evaluated using the TMT1 angle.

RESULTS

Compared with the control group, the HV group had a significantly wider MFW (9.9 mm in HV, 8.7 mm in control), lower ILFH (1.7 mm in HV, 2.5 mm in control), smaller ILFA (16.3 degrees in HV, 24.5 degrees in control), and larger TMT1 angle (1.9 degrees in HV, 0.9 degrees in control) (all P < .05). No significant differences were found between the 2 groups in FH, SFW, and IFW (all P > .05). The study identified 4 types of TMT1 morphology: continuous-flat, separated-flat, continuous-protruded, and separated-protruded. The continuous-flat type possessed significantly larger HVA, IMA, and TMT1 angles compared with other types (all P < .001).

CONCLUSION

This study indicates a potential association between TMT1 morphology and the severity of HV and identifies 4 TMT1 types. Notably, the continuous-flat type is found to be associated with more severe HV and TMT1 instability.

LEVEL OF EVIDENCE

Level III, retrospective comparative study.

Insights Into Patients Questions Over Bunion Treatments: A Google Study

Background

Approximately 1 in 4 adults will develop hallux valgus (HV). Up to 80% of adult Internet users reference online sources for health-related information. Overall, with the high prevalence of HV combined with the numerous treatment options, we believe patients are likely turning to Internet search engines for questions relevant to HV. Using Google's people also ask (PAA) or frequently asked questions (FAQs) feature, we sought to classify these questions, categorize the sources, as well as assess their levels of quality and transparency.

Methods

On October 9, 2022, we searched Google using these 4 phrases: "hallux valgus treatment," "hallux valgus surgery," "bunion treatment," and "bunion surgery." The FAQs were classified in accordance with the Rothwell Classification schema and each source was categorized. Lastly, transparency and quality of the sources' information were evaluated with the Journal of the American Medical Association's (JAMA) Benchmark tool and Brief DISCERN, respectively.

Results

Once duplicates and FAQs unrelated to HV were removed, our search returned 299 unique FAQs. The most common question in our sample was related to the evaluation of treatment options (79/299, 26.4%). The most common source type was medical practices (158/299, 52.8%). Nearly two-thirds of the answer sources (184/299; 61.5%) were lacking in transparency. One-way analysis of variance revealed a significant difference in mean Brief DISCERN scores among the 5 source types, F(4) = 54.49 (P < .001), with medical practices averaging the worst score (12.1/30).

Conclusion

Patients seeking online information concerning treatment options for HV search for questions pertaining to the evaluation of treatment options. The source type encountered most by patients is medical practices; these were found to have both poor transparency and poor quality. Publishing basic information such as the date of publication, authors or reviewers, and references would greatly improve the transparency and quality of online information regarding HV treatment.

Level of Evidence

Level V, mechanism-based reasoning.

Republication of "Treatment of Hallux Valgus Deformity Using a Suture Button Device: A Preliminary Report"

Background

Hallux valgus (HV) is commonly treated with proximal or distal first metatarsal osteotomy. Despite good correction, these procedures have inherent risks such as malunion, nonunion, metatarsal shortening, loss of fixation, and avascular necrosis. Suture button fixation has been used for HV treatment. It avoids the risks of corrective osteotomies while maintaining reduction of the intermetatarsal angle (IMA). The goal of this study was to assess the radiographic and functional outcomes of patients undergoing HV correction with a distal soft tissue procedure and proximal suture button fixation.

Methods

The authors retrospectively reviewed the charts and radiographs of 22 patients who had undergone HV correction using a distal soft tissue correction and proximal fixation with a miniature suture button device (Mini TightRope; Arthrex, Inc, Naples, FL). Mean follow-up was 27.7 months. The IMA, hallux valgus angle (HVA), and sesamoid station were measured on radiographs obtained preoperatively as well as in the immediate postoperative period and at final follow-up. Preoperative and postoperative Short Form-36 (SF-36) and Foot and Ankle Ability Measure (FAAM) scores were collected. Postoperative complications, and any additional operative procedures performed were also recorded.

Results

The mean preoperative IMA and HVA were 16.9 and 32.6 degrees, respectively. The mean immediate postoperative IMA was 5.2 degrees (P < .0001) and the mean HVA was 9.8 degrees (P < .0001). At final follow-up, the mean IMA was 8.2 degrees (P < .0001) and the mean HVA was 16.7 degrees (P < .0001). The average change in HVA from preoperative to final follow-up was 16.0 degrees and the average change in IMA from preoperative to final follow-up was 8.6 degrees (P < .0001). Sesamoid station assessment at the 2-week follow-up showed that 22 patients (100%) were in the normal position group; at final follow-up, 17 patients (77%) had normal position and 5 patients (23%) had displaced position. Although there were no clinically symptomatic recurrences, asymptomatic radiographic recurrence was noted in 5 patients (23%) who had a final HVA >20 degrees. All components of the FAAM and the SF-36 showed improvement from preoperative to final follow-up, although these changes were not statistically significant. Three patients experienced complications, including an intraoperative second metatarsal fracture, a postoperative second metatarsal stress fracture, and a postoperative deep vein thrombosis.

Conclusion

The use of a distal soft tissue procedure in conjunction with proximal suture button fixation is a safe and effective procedure for treating symptomatic HV deformity. Our results show that this technique can correct the IMA, HVA, and sesamoid station without the need for osteotomy.

Level of evidence

Level IV.

Radiographic and Patient-Reported Outcomes of a Low-Cost Modified Lapidus Bunion Correction Technique

Background

The modified Lapidus (ML) is a powerful procedure for correction of hallux valgus (HV) with emerging techniques. Studies considering patient-reported outcomes, radiographic measures, complications, and implant costs are currently limited.

Methods

Retrospective cohort with prospectively collected Patient Reported Outcome Information System Physical Function (PROMIS-PF) Computerized Adaptive Test (CAT) scores, radiographic parameters (intermetatarsal angle, IMA; hallux valgus angle, HVA; and tibial sesamoid position, TSP), complications, and total operative time and implant costs were reviewed from 2014 to 2019.

Results

Seventy-three feet (68 patients) underwent bunion correction by ML with lag-screw fixation. Median age was 55.8 years (IQR 45.6, 53.9), 4 of 73 (5.5%) were male, 11 of 73 (15.1%) were smokers, and 15 of 73 (20.6%) were diabetic (median HbA1c 6.4% [IQR 6.0, 7.4], none insulin dependent, 5 of 15 with neuropathy). Complications included 6 of 73 (8.2%) wound issues resolved with topical or oral treatment, 9 of 73 (12.3%) painful or broken hardware requiring hardware removal. Two of 73 (2.7%) had persistent pain despite union. One of 73 (1.4%) was overcorrected and required first MTP arthrodesis. Of 3 nonunions (2.7%), 1 resolved with corrected hypothyroidism, 1 was asymptomatic and required no treatment, 1 had a hallux valgus recurrence and sought revision surgery elsewhere. Preoperative radiographic angles were HVA 35 degrees, IMA 14 degrees which improved at final postoperative follow up to HVA 10 degrees, IMA 6 degrees. Tibial sesamoid position improved from 6.05 ± 1.00 to 2.22 ± 1.38. Thirty-two patients had preoperative and 42 had 1-year postoperative outcomes. PROMIS-PF (51% collection rate) was 43 (IQR 37,52) preoperatively, 37 (31, 39) at 6 weeks, 46 (42, 51) at 3 months, and 49 (41, 53) at >360 days postoperatively. The drop in PROMIS-PF between preoperative and 6 weeks and the rise from 6 weeks to 3 months were statistically significant. Pre- and postoperative PROMIS-PF scores were not significantly different. Implant cost averaged US$146.

Discussion/Conclusion

We report low complication rates and costs with high patient postoperative functional and radiographic outcomes. PROMIS-PF decreased acutely postoperatively but recovered and maintained high levels by 3 months postoperatively.

Level of Evidence

Level IV, case series.

A Systematic Review and Meta-Analysis of the Prevalence of Hallux Valgus in the General Population

The objective of this systematic review was to determine the prevalence of hallux valgus (HV) in the general population by conducting a review and meta-analysis of existing studies. Published articles on the incidence of HV were systematically searched and evaluated on reputable medical databases such as PubMed. The keywords "the prevalence of hallux valgus and/or bunions"were used to create the search syntax on the various databases. Data were gathered on prevalence, population under study, and methodology. A total of 11 articles that met the search criteria were identified and included in this review for a total of 10,886 participants across the studies. The pooled prevalence of HV across the studies was3.75 (95% confidence interval = 0.388-0.517). Therefore, the prevalence varied widely across the studies reviewed. Prevalence was observed to be high among females and increased with risk factors such as body mass index, which were identified as significant across the studies. This review was limited by insufficient data and the lack of a standard HV diagnosis method. Therefore, a standard HV diagnosis tool is recommended.

Biomechanical Comparison of Medio-Plantar and Plantar Plate Fixation for First Tarsometatarsal Joint Arthrodesis

Plantar plate positioning has been demonstrated as biomechanically superior. However, some operators remain resentful about the morbidity of the surgical approach. To provide improved plate fixation for first tarsometatarsal joint arthrodesis with respect to the tibialis anterior tendon, a medio-plantar plate was developed. The purpose of this biomechanical study was to compare its construct stability to that of a plantar plate construct. Twelve pairs of fresh frozen human specimens were used in a matched pair test. Each pair was fixed with a 4 mm compression screw and either a plantar locking plate or a medio-plantar locking plate. A cantilever beam test was performed in dorsiflexion. Before and after cyclic loading (5000 cycles; 40 N), bending stiffness and relative movements at the joint space were monitored in a quasi-static test including optical motion tracking. Maximum load and bending moment to failure were investigated in a load-to-failure ramp test. The bending stiffness of both groups did not significantly differ before (plantar 49.9 N/mm ± 19.2; medio-plantar 53.9 N/mm ± 25.4, p = 0.43) or after (plantar 24.4 N/mm ± 9.7; medio-plantar 35.3 N/mm ± 22.0, p = 0.08) cyclic loading but decreased significantly in both groups (p < 0.01) after cyclic loading. Relative movement increased significantly during cyclic testing in both groups (p < 0.01) but did not differ significantly between the groups before (p = 0.29) or after (p = 0.16) cyclic loading. Neither load nor bending moment to failure were significantly different (plantar 225 N ± 78, 10.8 Nm; medio-plantar 210 N ± 86, 10.1 Nm, p = 0.61). Both plate constructs provided equivalent construct stability, both being well suited for Lapidus arthrodesis.

Early Outcomes of Third-Generation Minimally Invasive Chevron-Akin (MICA) Osteotomy for Symptomatic Hallux Valgus Deformity

Hallux valgus is a common progressive forefoot deformity. Although open techniques have shown good outcomes, no technique has been shown to be superior to other techniques. The current third generation of minimally invasive Chevron-Akin (MICA) technique features a percutaneous procedure with a stable internal fixation. The technique used in this study resulted in stable internal fixation; however, 1 screw was used in intramedullary fashion in the majority of cases. The purpose of this study is to review the early outcomes of MICA. Electronic Health Records (EHR) were queried for patients who underwent MICA to treat hallux valgus (HV) deformity, by a single surgeon. The primary clinical outcomes assessed were visual analog pain score (VAS), rate of revision surgery, and recurrence. Radiographic outcomes were assessed including pre and postoperative hallux valgus angle (HVA), intermetatarsal angle (IMA), and bony foot width. The secondary outcomes included postoperative complications. A total of 91 feet underwent MICA to correct symptomatic HV deformity. The mean age of this cohort was 53.63 ± 15.42 years, mean body mass index (BMI) of 26.81 ± 6.21 kg/m², mean follow-up of 6.33 ± 6.39 months and 87 feet belonged to female patients. Patients showed significant improvement in VAS and radiographic outcomes at final follow-up, with a mean improvement of 10.70° ± 6.42°, 2.39° ± 3.55°, and 5.30 mm ± 4.23 mm for the HVA, IMA, and bony foot width, respectively. Two patients (2.2%) required revision surgery for nonunion and removal of symptomatic hardware. One patient had a second metatarsal fracture treated nonoperatively. No feet had recurrence, hardware loosening, infection, or scar hypersensitivity. The current study reported on early outcomes for MICA. This technique appears to be effective and safe with no failure of fixation in our patients. We showed in our short-term follow-up, MICA led to significant improvement in pain and radiographic scores.Levels of Evidence: III, retrospective study.

Perspectives and trends for minimally invasive surgery for hallux valgus deformity in the Asia Pacific region

BACKGROUND

Evolving evidence and improved instrumentation have led to increasing importance of minimally invasive surgery (MIS) surgery in the treatment of hallux valgus deformity. This study aims to investigate the current trends of the practice of MIS hallux valgus surgery in the Asia Pacific region.

METHOD

A survey was sent via email to 30 fellowship-trained foot and ankle surgeons in 11 Asia Pacific countries, all registered with their respective national orthopaedic societies. The survey consisted of 8 questions and was designed to assess surgeon experience with MIS hallux valgus surgery, including common contraindications, satisfaction levels, learning curves and post-operative rehabilitation after MIS hallux valgus surgery.

RESULTS

The vast majority of surgeons (63%) performed MIS hallux valgus surgery. However, only 18% of surgeons performed MIS surgery in more than half of their hallux valgus cases. A severe deformity was the most common contraindication (81%), followed by the instability of the first tarsometatarsal joint (50%), and abnormal DMAA (Distal Metatarsal Articular Angle) (38%). There was no statistically significant difference between the satisfaction score of MIS versus open surgery (p-value 0.1). The median number of cases the surgeons needed to perform before they considered themselves comfortable performing the surgery was 10 cases (range 1-100). Most surgeons allowed full weight bearing at 4-6 weeks after surgery.

CONCLUSIONS

MIS hallux valgus surgery is gaining popularity in the Asia Pacific region, with the majority of surgeons adopting this practice. The fact that severe deformity is seen as the most frequent contraindication and that MIS surgery is still not the most popular alternative demonstrates that surgeons are still circumspect when it comes to MIS surgery. Surgeons can use the findings of this study to guide their adoption of MIS practices in hallux valgus surgery and gauge well they perform in comparison to their counterparts in the Asia Pacific region.

Opioid Usage After Hallux Valgus Correction Surgery

BACKGROUND

Given the lack of objective data on opioid use and the difficulty of addressing a patient's postoperative pain, we sought to quantify patient's narcotic use after hallux valgus surgery. The purpose of our study was to determine the average quantity and type of postoperative opioids consumed after hallux valgus surgery and to assess potential predictive factors for increased opioid consumption.

METHODS

At the preoperative visit, patients were consented and completed a demographical questionnaire. Data were collected from the operative record, 2, 6, and 12-week postoperative visits. Type and number of pills prescribed were recorded as well as number of pills consumed at each postoperative visit. A logistic regression was performed to determine the average quantity consumed postoperatively and any statistically significant correlations.

RESULTS

The average number of opioid pills collectively consumed at the 2-week and 12-week postoperative visit was 20 and 23, respectively. At the 2-week postoperative visit, only patient body mass index (BMI) showed a correlation with increased opioid use.

CONCLUSION

Patients consumed an average of 23 of 40 (57.5%) narcotic pain pills prescribed after hallux valgus reconstruction surgery through the 12-week postoperative period. Owing to the opioid epidemic and potential for narcotic diversion, surgeons should counsel their patients on proper nonopioid postoperative pain management.

LEVEL OF EVIDENCE

II Therapeutic.

Maintenance of Correction of the Modified Lapidus Procedure With a First Metatarsal to Second Metatarsal Screw With "Spot Weld" Technique: A Retrospective and Radiographic Analysis

Lapidus first tarsometatarsal (TMT) arthrodesis gained popularity for its ability to correct large deformities especially in cases of medial column instability. Despite solid first TMT fusion, instability between the first and second columns can result in loss of intermetatarsal (IM) angle correction over time. A "spot weld" or fusion between the first and second metatarsal may improve maintenance of correction. This retrospective study reviewed cases of Lapidus arthrodesis with first to second metatarsal base screw fixation for maintenance of IM correction and determine whether a "spot weld" is predictive of maintenance. A total of 90 cases (77 patients) performed by a single surgeon met inclusion with average follow-up of 309 days. First TMT fusion occurred in 87/90 (96.7%) cases with 76 dorsal plate, 10 dorsal staple, and 4 all screws. No incidence of complications related to the 1-2 screw was noted. Mean preoperative IM 1-2 angle 14.90°, mean correction to 6.22° post-operative and final maintained correction at 7.10°, mean loss of correction 0.87°. There were "spot welds" in 65/90 (72.2%) with mean loss of 0.48° versus loss of 1.88° in "no spot weld" subgroup (p < .001). Cases with no spot weld and screw lucency lost 2.25° (p < .001). Loss of IM 1-2 correction can occur due to first and second ray intra-column instability even in cases of solid first TMT arthrodesis. Incorporating a completed "spot weld" with bone grafting and first to second metatarsal screw was found to maintain correction with minimal loss (0.87°).

The Surgical Treatment of Hallux Valgus Utilization Minimally Invasive and Percutaneous Techniques with a Shannon Burr: A Systematic Review

Category:

Midfoot/Forefoot; Bunion

Introduction/ Purpose:

Recently there has been an increase in minimally invasive surgery (MIS) for the correction of hallux valgus deformity. This systematic review aims to evaluate and present the current literature on MIS hallux valgus correction in studies reporting the use of the Shannon burr with distal metatarsal osteotomies to help establish evidence-based guidelines for surgeons utilizing this technique.

Methods:

Two independent authors performed a systematic literature search using the following databases: PubMed, Embase, and the Cochrane library. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) protocol and the Cochrane Handbook guidelines were followed. All studies included were published from 2008 to 2022 and included the use of the Shannon burr during distal metatarsal osteotomies minimally invasive surgery for hallux valgus and at least 12-month follow-up.

The MINORS score criteria was utilized to evaluate the strength and quality of 17 studies by three authors. Statistical analysis and meta-analysis were not performed due to the heterogeneity of the included studies and the data being descriptive.

Results:

A total of 17 studies were reviewed. A total of 911 subjects were included, and 1088 MIS procedures were performed. The average follow-up was 23.8 (12-59.1) months. AOFAS and VAS scores improved from 52.1 (41-62.5) to 90.3 (83.3-97.1) and 4.9 (3-8.2) to 0.8 (0-1.9). Satisfaction rates were very high among the studies that reported it. The HVA, IMA and DMAA angle improved from 31.4 (23.5-44.1) to 11.1 (7-17.2).), 13.4 (8.1-18.6) to 7.3 (4.2-10.3), and 12.3 (9-16.3) to 4.1 (1-6.7). Complication rate was 16.6%. Recurrence was 2.2%. Nonunion 0.4%, infections 1.1%, nerve injury 2.2%, avascular necrosis 0%, hallux varus 0.09%, transfer metatarsalgia 0.1% and hardware removal 6.2%.

Conclusion:

Minimally invasive surgery for the treatment of hallux valgus utilizing the Shannon burr appears to be a safe and effective therapy with appropriate correction of the hallux valgus deformity, improvement in functional outcomes, high patient satisfaction, low recurrence, and acceptable complication rates.

Forefoot Function after Hallux Valgus Surgery: A Systematic Review and Meta-Analysis on Plantar Load Measurement

While hallux valgus (HV) surgeries are useful for correcting skeletal alignment problems, their effects on plantar load, which reflects forefoot functions, are less understood. The objective of this study is to conduct a systematic review and meta-analysis on the plantar load change after HV surgeries. A systematic search of Web of Science, Scopus, PubMed, CENTRAL, EMBASE, and CINAHL was performed. Studies that assessed the pre- and post-operative plantar pressure of HV patients undergoing surgeries and reported load-related parameters over the hallux, medial metatarsal, and/or central metatarsal regions were included. Studies were appraised by using the modified NIH quality assessment tool for before-after study. Studies suitable for meta-analysis were pooled with the random-effects model, using the standardized mean difference of the before-after parameters as an effect measure. Twenty-six studies containing 857 HV patients and 973 feet were included for the systematic review. Meta-analysis was conducted on 20 of them, and most studies did not favor HV surgeries. Overall, HV surgeries reduced the plantar load over the hallux region (SMD -0.71, 95% CI, -1.15 to -0.26), indicating that forefoot function worsened after surgeries. For the other five outcomes, the overall estimates were not statistically significant, indicating that surgeries did not improve them either. There was substantial heterogeneity among the studies, which in most cases could not be resolved by pre-planned subgroup analyses by surgical classification, year of publication, median age of patients, and length of follow-up. Sensitivity analysis removing lower-quality studies showed that the load integrals (impulse) over the central metatarsal region significantly increased (SMD 0.27, 95% CI, 0 to 0.53), indicating that surgeries increased the risk of transfer metatarsalgia. There is no solid evidence that HV surgeries could improve forefoot functions from a biomechanical point perspective. Currently available evidence even suggests that surgeries might reduce the plantar load over the hallux and adversely affect push-off function. The reasons behind and the effectiveness of alternative surgical methods warrant further investigation.

Incidence of Nonunion Following First Metatarsophalangeal Joint Arthrodesis for Hallux Valgus Deformity: A Retrospective Analysis of Four Different Constructs

Arthrodesis of the great toe joint is a valuable procedure for hallux valgus deformities. The primary aim of this study was to determine nonunion rates of a first metatarsophalangeal joint (MTPJ) arthrodesis for bunion deformity. This was a retrospective review of 166 consecutive limbs that underwent a first metatarsal phalangeal joint arthrodesis at Wake Forest Baptist Medical Center (WFBMC). Procedures were performed using 4 different constructs for the arthrodesis. Incidence of nonunion, intermetatarsal correction, infection, and recurrence were measured. Overall, 20 patients (12%) experienced nonunion following a first metatarsophalangeal joint arthrodesis. Eighty-seven patients (86%) of plate and screw patients achieved union while 14 (78%) of crossing screw patients achieved union. The minimum time of follow-up was 3 months and the maximum time was 15.4 months. The mean change in intermetatarsal and hallux valgus angle correction was 3.4° and 20.3°, with no statistical difference based on hardware construct or being diabetic. First metatarsophalangeal joint arthrodesis is a viable option for hallux valgus. However, the results of the present study suggest that there is a lower fusion rate of the first MTPJ using crossing screws for bunion deformities.

Are Radiographs Associated With Patient Satisfaction After Scarf Bunionectomy?

There are over 350,000 bunion surgeries performed in the USA annually, making it one of the most common elective forefoot surgeries. Studies have suggested that as many as 10% of patients remain dissatisfied after bunion surgery. The purpose of this study is to evaluate if radiographic variables are associated with patient satisfaction at 1 year postoperatively. We performed a secondary analysis of prospectively collected data on 69 consecutive adult patients (mean age 45 ± 14 years, 91% female [63/69]) who underwent isolated hallux valgus surgery from January 2016 to January 2017. Subjects completed a standardized 4-item survey inquiring about their satisfaction with regards to pain relief, overall operative result, cosmetic appearance, and ability to wear desired shoe gear. Conventional radiographic indices for hallux valgus were examined preoperatively and 3 months postoperatively. An association model using backward stepwise logistic regression was utilized to determine which variables, if any, are most important in explaining patient satisfaction after surgery. Sixty-nine subjects completed the 4-item satisfaction survey with 53.6% (37/69) of subjects answering they were fully satisfied on all aspects of the survey at 12 months postoperatively. In the final regression model, no radiographic or demographic variables were associated with patient satisfaction including shoe gear, cosmetic appearance, pain relief, and overall operative result. Radiographic variables did not appear to be associated with patient satisfaction at one year postoperatively in our study. Factors such as quality of life, anxiety levels, fear of surgery, and/or preoperative expectations may offer more insight into satisfaction; however, further research should be performed to examine this further.

The Learning Curve of Third-Generation Percutaneous Chevron and Akin Osteotomy (PECA) for Hallux Valgus

The learning curve to reach technical proficiency for third-generation percutaneous or minimally invasive chevron and Akin osteotomies (PECA/MICA) is recognized to be steep however it is poorly defined in the literature. This study is a retrospective review of the first 58 consecutive PECA cases of a single surgeon. The primary outcome was the number of cases required to reach technical proficiency as defined by the operation time. Secondary outcomes included radiation exposure, radiographic deformity correction, and complication rates. Between November 2017 and March 2019, 61 consecutive PECA cases were performed with outcome data available for 58 of these (95%). Technical proficiency was reached after 38 cases. Operation time and radiation exposure significantly decreased after this transition point (p < .05). There was no difference in complication rate or radiographic deformity correction regardless of position along the learning curve (p > .05). In conclusion, the mean number of cases required to reach technical proficiency in third-generation PECA is 38 cases. The complication rate does not correlate to the number of cases performed, therefore surgeons interested in learning minimally invasive surgery can be reassured that there is unlikely to be an additional risk of harm to a patient during the learning curve.

Opiate Free Multimodal Pain Pathway in Elective Foot and Ankle Surgery: A Prospective Study

Category:

Bunion; Other

Introduction/Purpose:

Orthopedic surgeons frequently prescribe and overprescribe narcotic pain medications during the postoperative period, despite our increased understanding of the opioid crisis. In an effort to minimize narcotic analgesia and its potential side effects, opiate free multimodal pain pathways have been developed with promising results. However, there is a lack of published literature looking at opiate free multimodal pain protocols for elective outpatient foot and ankle surgeries. At our institution we have been implementing a novel opiate free multimodal post-operative pain protocol for elective outpatient foot and ankle surgeries. The purpose of this study was to explore the efficacy, feasibility, outcomes and satisfaction of an opioid-free, multimodal postoperative pathway in patients undergoing elective outpatient foot and ankle surgery.

Methods:

This study was approved by our IRB and was a prospective study. Data was collected from December 1st, 2020 through February 9th, 2022 for patients who underwent a primary elective outpatient foot and ankle surgery including bunion correction surgery with or without a lesser toe procedure(s). These patients completed a comprehensive opioid-free, multimodal pain management protocol and a follow up with one of two fellowship trained orthopedic foot and ankle surgeons. The multimodal treatment protocol included oral Lyrica, Tylenol, Toradol and flexeril to begin POD#0. Mobic was given to POD #4 once Toradol was completed. All data was collected in a prospective manner. At POD#1, #3, and #8, patients were contacted to collect VAS scores, complications, ED and Urgent care visits, and pain medication needs. At two week follow up these were again collected in addition to overall satisfaction rates.

Results:

33 patients enrolled with a mean age of 55 (19-81) years old. The average follow up was 11.5 weeks. On POD#1, #3, #8, and at 2 week follow up our patients’ average VAS pain score was a 4.0, 2.5, 1.6, and 1.4 out of 10, respectively. 18% of patients required narcotics within the first 2 weeks, but by 2 weeks no patients were taking narcotics. No patients visited an ED or urgent care during the first 2 weeks post operatively. Common side effects were drowsiness/tiredness and constipation. Only 4 reported nausea or GI upset at 2 week follow up. Overall, 91% were satisfied with their pain control, 78% would follow the same protocol again, and 82% would recommend this pain management regimen to others.

Conclusion:

An opioid-free, multimodal pain management pathway is a safe and effective option in properly selected patients undergoing elective outpatient foot and ankle surgery with a very low risk of requiring rescue opioids, having significant side effects, and/or needing an ED or urgent care evaluation within the first 2 week post operative period.

Perioperative Opioid Analgesics and Hallux Valgus Correction Surgery: Trends, Risk Factors for Prolonged Use and Complications

In the setting of an opioid epidemic, this study aims to provide evidence on opioid use trends, risk factors for prolonged use, and complications from perioperative opioid consumption in hallux valgus surgery. A national database was queried for patients who underwent hallux valgus correction. Regression analysis identified: (1) risk factors for prolonged postoperative narcotic use; and (2) association between preoperative/prolonged postoperative narcotic use and postoperative complications. A linear regression analysis was used to determine trends. About 20,749 patients were included, of which 3464 patients were prescribed narcotics preoperatively and 4339 were identified as prolonged postoperative narcotic prescription users. Preoperative prescriptions were identified as risk factors for prolonged use. Perioperative narcotic use was observed to be a risk factor for poor outcomes. About 21% of patients were identified as prolonged postoperative narcotic prescription users. Patients undergoing hallux valgus corrective surgery should be counseled regarding their increased risk of complications when using narcotics.

Plantar Plating in the Modified Lapidus Procedure: Evaluation of Function and Impairment of the Tibialis Anterior Tendon

The modified "Lapidus" procedure (MLP) describes the arthrodesis of the first tarsometatarsal joint. We investigate if there are detectable changes of the tendon or the function of the muscle and clinical outcome after MLP. We reviewed 22 feet. All patients underwent magnetic resonance imaging (MRI) at an average of 27 (range, 12-49) months. Clinical outcome was evaluated using the European Foot and Ankle Society score. Strength was measured and complications were assessed. MRI revealed signs of tendinopathy of the tibialis anterior tendon in 13 feet (59%). The mean total European Foot and Ankle Society score at final follow-up was 17 (range, 6-24) points. The mean postoperative Visual Analog Scale score was 1.4 (range, 0-5). Range of motion and force data were not significantly different to the contralateral side. In conclusion, MRI showed signs of tendinopathy in 59%, which does not seem to affect clinical outcome, but has to be considered when choosing the desired implant and placement. MLP leads to high patient satisfaction rates and significant improvement at midterm follow up.

Minimally Invasive Chevron-Akin for Correction of Moderate and Severe Hallux Valgus Deformities: Clinical and Radiologic Outcomes With a Minimum 2-Year Follow-up

BACKGROUND

The minimally invasive chevron-Akin (MICA) technique has already demonstrated efficacy compared with other known surgical treatments for mild to moderate hallux valgus (HV). MICA combines percutaneous osteotomies with the benefits of modern, rigid internal fixation. The aim of study was to evaluate the radiographic parameters, clinical improvement, and potential complications in moderate to severe HV cases, operated using the MICA technique.

METHODS

Retrospective study including 70 feet with HV operated using the MICA technique. The AOFAS hallux MTP-IP score and radiographics for HV evaluation were applied preoperatively, and after 6 months, 1 year, and 2 years of follow-up. The following radiographic parameters were measured: metatarsophalangeal hallux valgus angle (HVA), distal metatarsal articular angle (DMAA), interphalangeal angle (IPA), and intermetatarsal angle (IMA).

RESULTS

The average preoperative VAS pain score was 8.2 ± 1.5, which improved to 1.2 ± 2.2 at 24 months. The mean preoperative IMA was 14.8 ± 3.6 degrees compared with a mean of 7.5 ± 2.1 degrees (P < .01) at 24 months. The preoperative HVA value averaged 30.4 ± 9.8 degrees and at 6 months postoperatively 11.1 ± 6.8 degrees (P < .01), which remained stable until measured at 24 months. The mean preoperative DMAA was 16.3 ± 8.6 degrees and at the 6-month follow-up was 7.8 ± 5.4 degrees (P < .01). The mean preoperative IPA was 7.63 ± 4.4 degrees compared with a mean of 6.28 ± 3.5 degrees (P > .05) at 24 months. Complications included painful hardware (14.28%), neuropathic pain (2.85%), and loss of correction (4.28%).

CONCLUSION

In this retrospective review from a single center, we found the MICA technique to be an effective procedure for correcting moderate to severe HV, with a low rate of recurrence and an acceptable rate of complications. Patients undergoing the surgical procedure in our series showed a significant reduction in radiographic parameters and a significant improvement in clinical scores, maintaining these results over time.

LEVEL OF EVIDENCE

Level IV, retrospective study.

Addressing Transverse Plane Instability in the Modified Lapidus Arthrodesis: A Comparative Study of Screw Versus Suture and Button Fixation Device Technique

The Lapidus arthrodesis is a powerful procedure for the correction of hallux valgus with metatarsus primus varus. Yet, first ray instability may persist despite correction of the primary deformity with 2 crossed screw fixation. A third screw is often utilized as the additional point of fixation for noteworthy residual transverse plane motion, but it is not without potential complications. The suture and button fixation device may be an appropriate alternative to the third screw construct. This retrospective cohort study identified clinical / radiographic outcomes and complication rates following a third point of fixation with either a screw or suture and button fixation device in patients undergoing a modified Lapidus arthrodesis. One surgeon performed all of the Lapidus procedure with a third screw while the other surgeon performed all with a suture and button fixation device. Of 136 consecutive patients who underwent a modified Lapidus arthrodesis, 83 (61%) patients required a third point of fixation for satisfactory stabilization of the first ray. Surgical technique was similar between the 2 surgeons; however, one utilized the suture and button fixation device method (n = 36), while the other used a third screw for fixation (n = 47). Many of the clinical outcomes, radiographic results, and the union rate were similar between the 2 methods. Nineteen (40%) complications occurred in the third screw group compared to 6 (17%) in the suture and button fixation device group. However, the third screw group demonstrated 100% maintenance of deformity correction at 1 year versus 95% in the suture and button fixation device group. Although fixation with a suture and button fixation device was associated with fewer complications, a larger study is necessary to determine if these variations are statistically significant.

Do Patient Personality Traits and Self-Reported Physical and Psychosocial Symptoms Help to Predict Hallux Valgus Surgery Outcomes?

As many as 10% of patients remain unsatisfied after hallux valgus surgery. We explored the effects of patient personality traits and other preoperative patient characteristics on patient-reported outcomes following surgery. Eighty consecutive adult patients (mean age 45 ± 14 years, 91% female [73/80]) undergoing scarf bunionectomy at our practice were prospectively enrolled from January 2016 to January 2017 and followed for 12 months. Predictor variables included preoperative physical and psychosocial complaints (determined via Brief Battery for Health Improvement-2 questionnaire), patient aggression level, and personality traits (extraversion, agreeableness, conscientiousness, emotional stability and openness). Primary outcome measures included the Foot and Ankle Outcome Score (FAOS) with its 5 subscales, and patient satisfaction. Multiple multivariable regression models were used to determine preoperative patient characteristics associated with FAOS outcome and satisfaction at 12 months. Seventy subjects (70/80, 87.5%) completed the study. All patients experienced technically successful surgery. In the multivariable regression analyses, none of the combinations of potentially important predictor variables explained more than 19.8% of the variance in any of the 5 FAOS subscales at 12 months (range: 6.1%-19.8%). Furthermore, no predictor was associated with patient satisfaction in either the univariate or multivariable analyses. We conclude that patient personality traits, aggression level, and self-reported physical and psychological symptoms do very little to predict outcomes in hallux valgus surgery. As healthcare delivery in the United States has increasingly prioritized patient satisfaction, we will need to broaden the quest for predictors associated with our best (and worst) patient-reported outcomes after hallux valgus surgery.

The Effect of Hallux Valgus Surgery on the Transverse Plane Hallux Proximal Phalanx Position

The objective of this investigation was to evaluate the apparent movement of the hallux proximal phalanx in the transverse plane relative to the second metatarsal following hallux valgus surgery. Pre- and postoperative radiographs of a consecutive series of 45 feet undergoing hallux valgus surgery were analyzed. Significant improvements were observed in the first intermetatarsal angle (12.4 vs 7.5 degrees; p < .001), hallux valgus angle (24.3 vs 13.4 degrees; p < .001), tibial sesamoid position (4.6 vs 2.7; p < .001), and second metatarsal-hallux proximal phalanx angle (80.1 vs 84.6 degrees; p < .001). No difference was observed in the distance between the second metatarsal bisection and the medial aspect of the tibial sesamoid (31.7 vs 31.5 mm; p = .756) nor between the second metatarsal bisection and medial aspect of the hallux proximal phalanx base (34.6 vs 34.2 mm; p = .592). Significant differences were observed between the second metatarsal bisection and the central aspect of hallux proximal phalanx base (26.5 vs 23.9 mm; p < .001) and between the second metatarsal bisection and the lateral aspect of the hallux proximal phalanx base (19.3 vs 15.4 mm; p < .001). A statistically significant difference was observed in the change of distance between the second metatarsal bisection and the medial, central, and lateral aspects of the hallux proximal phalanx base (-0.4 vs -2.6 vs -3.9 mm; p = .002). These results indicate that the hallux proximal phalanx does not translocate in the transverse plane following hallux valgus surgery, but instead pivots about the medial aspect of the joint.

Clinical Outcomes of Scarf-Akin Osteotomy for Hallux Valgus With Simultaneous Bunionette Correction: A Propensity Score-Matched Cohort Analysis

Hallux valgus and bunionette (Tailor's bunion) deformities are debilitating forefoot deformities that may occur together. Successful outcomes of surgery for either pathology have been well-described; however, the literature is sparce on outcomes of patients undergoing simultaneous surgery for both deformities. Between 2007 and 2018, 429 patients underwent a scarf-Akin osteotomy, and 20 patients underwent simultaneous bunionette surgery. Propensity score matching was used to match the scarf + bunionette group in a 1:2 ratio to a corresponding scarf only group using logistic regression. Their hallux and fifth metatarsal visual analogue scale (VAS), American Orthopaedic Foot & Ankle Society (AOFAS) Hallux Metatarsophalangeal-Interphalangeal Scale, Short Form-36 (SF-36), expectations and satisfaction scores were recorded at preoperative, 6-month and 2-year intervals. There were no differences in baseline characteristics between groups after matching (p > .05). At 6 months, the scarf + bunionette group had a significantly worse fifth metatarsal AOFAS (80.7 vs 92.9, p = .002) and VAS (1.5 vs 0.1, p = .008). However, at 2 years, greater improvements in the scarf + bunionette group resulted in no significant differences for fifth metatarsal AOFAS and VAS. The scarf + bunionette group had better SF-36 scores in the domains of physical functioning, bodily pain, general health and mental health (p < .05). Scarf + bunionette patients trended toward higher satisfaction (100.0% vs 85.0%, p = .165) and expectation fulfilment (95.0% vs 80.0%, p = .249) at 2 years, although not significant with the available numbers. In patients with similar baseline hallux and fifth metatarsal pain and function, simultaneous surgery and a scarf osteotomy alone result in similar improvements to pain and function at 2 years. However, patients who undergo both procedures have higher quality of life scores.

The Syndesmosis Procedure Correction of Hallux Valgus Feet Associated With the Metatarsus Adductus Deformity

Metatarsus adductus and hallux valgus are common foot deformities. Corrective surgery of hallux valgus feet with metatarsus adductus deformity can be challenging and experience a high deformity recurrence rate. The purpose of this study was to demonstrate if the syndesmosis procedure can correct such feet satisfactorily without osteotomies and arthrodesis. 75 hallux valgus feet in 45 patients with a Sgarlato's metatarsal adductus angle ≥15° were studied after having undergone the syndesmosis procedure for an average of 20.22 months. Their average preoperative intermetatarsal angle of 12.56° was improved to 6.00° (p < .001) and metatarsophalangeal angle from 35.61° to 23.46° (p < .001) significantly. Their average American Orthopedic Foot and Ankle Society's clinical scores improved significantly from 56.41 to 90.53 points (p < .001). Fifty-five feet (73.33%) had preoperative metatarsal calluses, and all but 3 had a noticeable reduction in severity. Forty-one patients (91.11%) were able to return to their desired activities and footwear. All relevant raw data formed this study, including x-ray and photographic images, were submitted as Supplementary Material for online viewing and reference. Despite the possible intrinsic rigidity of metatarsus adductus forefoot, this study demonstrated that hallux valgus feet with metatarsus adductus deformity could be corrected anatomically and functionally with the soft tissue syndesmosis procedure and without correcting the preexisting metatarsus adductus deformity. This study also supports the notion that the MA deformity accentuates hallux valgus alignment preoperatively and postoperatively, and possibly all feet in general.

Incidental Finding of Chronic Lymphocytic Leukemia After Podiatric Surgery: Case Report

Chronic lymphocytic leukemia (CLL) is hematopoietic neoplasm that typically remains insidious and undetected until symptoms arise. We present a patient that underwent podiatric surgery for a symptomatic bunion at the Veteran Affairs Medical Center Northport with resultant incidental finding of CLL. This facility mandates that all excised bone and tissue be submitted for gross examination by a pathologist. This case highlights the potential benefit of pathological examination of bone specimens for potential early detection of pathologies.

Association Between Hindfoot Alignment and First Metatarsal Rotation

BACKGROUND

The association between forefoot and hindfoot position for planus and cavus feet is fundamental to the treatment of these deformities. However, no studies have evaluated the association between hindfoot alignment and first metatarsal (M1) axial rotation. Understanding this possible relationship may help to understand the deformity and improve patient care. The purpose of this study is to determine a correlation between hindfoot alignment and metatarsal rotation as assessed by weightbearing computed tomography (WBCT).

METHODS

Patients who underwent weightbearing plain radiography (WBPR) and WBCT between 2015 and 2018 were evaluated. Hindfoot alignment was measured with the calcaneal moment arm (CMA). M1 rotation was measured using the Kim and Saltzman angles. Patient subgroups were created according to the severity of valgus/varus hindfoot alignment. Statistical analyses were performed to evaluate for association between variables.

RESULTS

Among the 196 patient feet included in the study, the average CMA was 6.0 ± 16.2 mm. The average Kim and Saltzman angles were 7.7 ± 12.9 degrees and 2.8 ± 13.1 degrees, respectively. The average Meary angle was 182.0 ± 11.9 degrees. A moderately strong association was found between the CMA and the Saltzman (r = 0.641, P < .01) and Kim angles (r = 0.615, P < .01). Hindfoot valgus was associated with M1 pronation and hindfoot varus with M1 supination. Additionally, inverse relationships between the Meary angle and the Saltzman (r = -0.600, P < .01) and Kim angles (r = -0.529, P < .01) were identified.

CONCLUSION

In this well-defined cohort, we found substantial correlation between hindfoot alignment and M1 rotation. Hindfoot valgus was associated with M1 pronation, and hindfoot varus was associated with M1 supination. Surgeons correcting cavovarus/planovalgus deformities should be aware of this association and evaluate the need for first-ray derotation.

LEVEL OF EVIDENCE

Level III, retrospective cohort study.

Clinical and Radiographic Outcomes of Percutaneous Chevron-Akin Osteotomies for the Correction of Hallux Valgus Deformity

BACKGROUND

Hallux valgus is a common cause of pain and dysfunction of the foot, sometimes requiring surgical correction when conservative measures fail. Although there are many methods of correction, one of the newer techniques is minimally invasive chevron-Akin (MICA). The aim of the current study is to evaluate clinical and radiographic effectiveness of MICA and narcotic use in a large patient cohort.

METHODS

All patients in this retrospective study were treated by a single fellowship-trained foot and ankle orthopaedic surgeon. Patient demographics were collected for all cases. Preoperative and postoperative intermetatarsal angle (IMA) and hallux valgus angle (HVA) were measured in all patients on weightbearing 3-views radiographs. The Foot Function Index (FFI) was obtained pre- and postoperatively at each visit. All patients were prescribed regular use of ibuprofen for 3 days with acetaminophen and oxycodone reserved for breakthrough pain. Use of narcotic pain medication was recorded.

RESULTS

A total of 274 feet in 248 patients were included in the study. Overall, 87.9% were female and 12.1% were male. The mean preoperative IMA and HVA were 13.4 and 29.1 degrees, respectively. The postoperative IMA and HVA were 4.9 and 8.9 degrees, respectively. The mean FFI score part A was 92 preoperatively and 43 postoperatively. Patient satisfaction was 91.6%. The mean postoperative 5 mg oxycodone pill consumption was 2.2.

CONCLUSION

MICA is good method to correct hallux valgus deformity with low postoperative narcotic use.

LEVEL OF EVIDENCE

Level III, restrospective cohort study of a single surgeon practice.

The Hallux Metatarsophalangeal Capsule: An Anatomic Study With Respect to Percutaneous Hallux Valgus Correction

BACKGROUND

Minimally invasive surgery for the treatment of hallux valgus deformities has become increasingly popular. Knowledge of the location of the hallux metatarsophalangeal (MTP) proximal capsular origin on the metatarsal neck is essential for surgeons in planning and executing extracapsular corrective osteotomies. A cadaveric study was undertaken to further study this anatomic relationship.

METHODS

Ten nonpaired fresh-frozen frozen cadaveric specimens were used for this study. Careful dissection was performed, and the capsular origin of the hallux MTP joint was measured from the central portion of the metatarsal head in the medial, lateral, dorsal, plantarmedial, and plantarlateral dimensions.

RESULTS

The ten specimens had a mean age of 77 years, with 5 female and 5 male. The mean distances from the central hallux metatarsal head to the MTP capsular origin were 15.2 mm dorsally, 8.4 mm medially, 9.6 mm laterally, 19.3 mm plantarmedially, and 21.0 mm plantarlaterally.

CONCLUSION

The MTP capsular origin at the hallux metatarsal varies at different anatomic positions. Knowledge of this capsular anatomy is critical for orthopaedic surgeons when planning and performing minimally invasive distal metatarsal osteotomies for the correction of hallux valgus.

TYPE OF STUDY

Cadaveric Study.

Prevalence and Predisposing Factors for Recurrence after Hallux Valgus Surgery: A Systematic Review and Meta-Analysis

Recurrence is a frequent and undesirable outcome after hallux valgus (HV) surgery. However, the prevalence of HV recurrence and the pre- and postoperatory factors associated with it have not been adequately studied. This study aimed to quantify the prevalence rate of HV recurrence and to analyze its predisposing factors. MEDLINE and EMBASE databases were systematically searched for observational studies including individuals undergoing HV surgical correction. The random-effects restricted maximum likelihood model was used to estimate the pooled effect size (correlation coefficient (r)). Twenty-three studies were included, yielding a total of 2914 individuals. Pooled prevalence of HV recurrence was 24.86% (95% confidence interval (CI), 19.15 to 30.57, I² = 91.92%, p = 0.00). Preoperative HV angle (HVA) (r = 0.29; 95% CI, 0.14 to 0.43) and preoperative intermetatarsal angle (IMA) (r = 0.13; 95% CI, 0.00 to 0.27) showed a moderate positive relationship with recurrence. Postoperative HVA (r = 0.57; 95% CI, 0.21 to 0.94) and sesamoid position (r = 0.46; 95% CI, 0.31 to 0.60) showed strong relationships with recurrence. In conclusion, preoperative HVA, IMA, and postoperative HVA and sesamoid position are significant risk factors for HV recurrence, and the association of these factors with recurrence is affected by age.

Short-Term, Retrospective Radiographic Evaluation Comparing Pre- and Postoperative Measurements in the Chevron and Minimally Invasive Distal Metatarsal Osteotomy for Hallux Valgus Correction

Various techniques exist for correction of mild to moderate hallux valgus (HAV) deformity. Recently, minimally invasive distal metatarsal osteotomy (MIDMO) has gained popularity for HAV correction. This retrospective radiographic review aims to report the surgical correction obtained by the chevron and MIDMO osteotomies at a single institution between January 2012 and December 2017. Radiographic parameters, such as intermetatarsal angle (IMA), hallux abductus angle (HAA), and tibial sesamoid position (TSP), were compared on weight-bearing anterior-posterior and lateral radiographs. Sixty-one patients who underwent distal first metatarsal osteotomies were separated into 2 groups. Group A included 30 patients with a chevron bunionectomy performed by Surgeon A; Group B consisted of 31 patients who had MIDMO performed by Surgeon B. Mean follow-up was 26.6 months for Group A and 18.7 months for Group B. Both groups had statistically significant radiographic correction for pre- and postoperative IMA, HAA, and TSP. Group A: IMA measured preoperatively 11.6° ± 4.0° to 6.8° ± 4.1° postoperatively, HAA preoperative 22.2° ± 9.1° to 12.3° ± 6.9° postoperative, and TSP preoperative 1.3 ± 0.9 to 0.7 ± 0.6 postoperative. Group B: IMA measured preoperatively 12.0° ± 2.9° to 5.9° ± 3.3° postoperatively, HAA preoperative 27.9° ± 8.6° to 12.0° ± 6.6° postoperative, and TSP preoperative 2.0 ± 0.8 to 0.7 ± 0.6 postoperative. Postsurgical retrospective radiographic review demonstrated chevron and MIDMO procedures provide comparable radiographic correction of IMA, HAA, and TSP.

Hallux Valgus Deformities: Preferred Surgical Repair Techniques and All-Cause Revision Rates

INTRODUCTION

Hallux valgus is a commonly treated condition by foot and ankle surgeons with more than 200 different described correction techniques. Recurrence rates range from 5% to 50%, with increasing support of the theory that arthrodesis procedures may have a lower recurrence rate than osteotomies. Arthrodesis procedures to the first metatarsophalangeal (MTP) joint or tarsometatarsal (TMT) joint for correction of hallux valgus deformity are becoming more commonly utilized. The purpose of this study is to investigate the surgical incidence and revision rates of hallux valgus deformities corrected by arthrodesis compared to osteotomy in the state of South Carolina.

METHODS

The South Carolina Revenue and Fiscal Affairs Office was queried from 2000 to 2017 to identify all surgically treated hallux valgus deformities. Data extraction included patient demographics, ICD-9 diagnoses, CPT procedure codes, and dates of surgery. A logistic regression model was used for statistical inference.

RESULTS

A total of 22 199 feet had surgical treatment for hallux valgus during this time period, with 20 422 (92.0%), 592 (2.7%), and 1185(5.3%) receiving an osteotomy, arthrodesis, or other procedure at initial treatment, respectively. There was an all-cause revision rate of 5.6% in the osteotomy group and 6.4% in the arthrodesis group. Demographic factors such as female sex, white race, and surgery pre-2010 were associated with higher revision rates. Multiple comorbidities were correlated with higher revision rates such as tobacco use, hypothyroidism, osteoarthritis, recurrent dislocations, hallux rigidus, lesser toe deformities, metatarsus varus, and talipes cavus.

CONCLUSION

Despite the recent increase in arthrodesis procedures for the treatment of hallux valgus deformity, our results suggest that osteotomy procedures are more commonly performed and there is no difference in all-cause revision surgery. However, there are multiple patient demographics and comorbidities that are associated with higher rates of revision surgery and should be considered and discussed during the preoperative planning period.

LEVEL OF EVIDENCE

Level IV.

A Prospective Evaluation of First Metatarsophalangeal Fusion Using an Innovative Dorsal Compression Plating System

Numerous techniques have been described for first metatarsophalangeal joint (MTPJ) fusion. The aim of this study was to prospectively evaluate an innovative plating system which uses a cross plate compression screw. Thirty consecutive first MTPJ fusions in 28 patients were evaluated. All procedures were performed by a single fellowship trained consultant foot and ankle surgeon. Patient function was evaluated preoperatively at 6 and at 12 months using the Manchester-Oxford Foot Questionnaire (MOXFQ). Union rates and complications were recorded. Postoperative MOXFQ scores demonstrated significant improvement in all domains, with mean improvement at 12 months of 35, 27, 17 and 106 points for pain, walking/standing, social interactions and combined scores respectively (p value ≤.0001). In all 30 cases, clinical and radiological evidence of union was achieved by 6 months. Superficial infection occurred in 1 (3%) case. One (3%) case required plate removal due to soft tissue irritation. There were no plate failures. This evaluation study demonstrates that this cross-plate compression plating system is safe, provides high patient satisfaction and reliable union, with low complication rates. Prospective comparative research is now required to determine the optimal technique for first MTPJ fusion.

Triplanar Correction for First Metatarsophalangeal Fusion

Successful deformity correction utilizing first metatarsophalangeal (MTP) fusion for hallux valgus with concomitant degenerative changes of the first MTP joint is well documented. Currently, there is limited discussion in the literature focusing on triplanar correction of the first MTP arthrodesis. Presented is a novel approach for triplane correction and fusion of the first MTP joint utilizing a biplanar locked plating system.

Symmetry of bilateral hallux valgus deformity: A radiographic study

Hallux valgus (HV) is a common anatomical deformity leading to pain and difficulty with footwear and mobility. Bilateral HV deformity is much more common than unilateral although it remains unclear whether the severity of deformity is equal between feet. The objective was to investigate the severity and symmetry of HV in patients with bilateral symptomatic deformity presenting for surgery. Weight-bearing radiographs of patients presenting with symptomatic bilateral HV were reviewed. The hallux valgus angle (HVA) and intermetatarsal angle (IMA) were measured and classified as mild, moderate, or severe. Left-to-right comparison was undertaken to assess whether the degree of deformity was similar for each foot. The relationship between age, HVA, and IMA was also assessed. Between July 2014 and June 2020, 322 ft (161 patients with bilateral deformity) underwent corrective HV surgery. Of those, 6.8%, 64.6%, and 28.4% were classified as mild, moderate, and severe, respectively on the left side, and on the right 6.2%, 67.7%, and 26.1% were classified as mild, moderate, and severe respectively. There was no statistically significant difference between feet for either IMA (p = 0.06) or HVA (p = 0.85). There was a moderate correlation (R = 0.41, p ≤ 0.001) between HVA and IMA. There was only a 'weak' or 'very weak' correlation between age and HVA or IMA. Patients presenting for surgery with symptomatic bilateral HV have symmetrical moderate radiographic deformity at the time they present for consideration of surgical intervention.