Short-Term Complications Following Early Protected Weight Bearing after Flatfoot Reconstruction when Utilizing a Fibertape Device for Spring Ligament Reefing Augmentation

Category: Ankle Introduction/Purpose: In an estimated 70% of cases of Adult Acquired Flatfoot Deformity (AAFD) reconstruction, the spring ligament is elongated and/or damaged. Spring ligament reefing can be performed through several techniques including augmentation with Fibertape devices. In addition, biomechanical studies have demonstrated its safety and suggest early weight bearing may be performed. The purpose of this study is to evaluate the outcomes of early weight bearing following flatfoot reconstruction with use of InternalBrace augmentation for spring ligament reefing when performed in combination with medical displacing calcaneal osteotomy (MCO) and FDL tendon transfer. Methods: From 2016-2018, 45 patients underwent flatfoot reconstruction (MCO, FDL transfer, and gastrocnemius recession) with spring ligament reefing and augmentation with the InternalBrace device. All surgeries were performed by the senior orthopaedic surgeons (PJJ & MCA). Institutional early post-operative weight bearing protocol involves weight bearing as tolerated in a splint with crutches for two weeks, transitioning at 2 weeks to a Cam boot with 1 wedge WBAT. At 4 weeks, the patient is weaned off crutches and recommended to start therapy restricting excessive eversion and concentrating on calf strengthening, gait, and ROM. At weeks 6-8 they are weaned from the Cam boot into lace up ASO and shoe with arch support. Data were recorded at 2 weeks, 6 weeks, 12 weeks, 6 months and at yearly intervals. Outcomes and complications were documented. Results: Of the 45 cases there were no complications related to early weight bearing. Radiographic bony union rate of the MCO was 100% (45/45). Moreover, there was no loss of fixation of either the FDL transfer or spring ligament reefing with InternalBrace augmentation with early weight bearing. Lastly, radiographic evaluation noted no loss of Meary’s talo-first metatarsal angle when comparing initial postoperative radiographic to their final follow up. Additional complications in our cohort included the following: removal of painful hardware (1, 2.22%), sural neuritis (2, 4.44%), superficial cellulitis (1, 4.44%), and delayed lateral wound healing (1, 2.22%). Conclusion: Preliminary data shows that early protected weight bearing after flatfoot reconstruction and augmentation of the spring ligament with the InternalBrace device is safe and demonstrates few complications and no early loss of correction.

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Radiographic Evaluation of Adult Acquired Flatfoot Correction with Augmented Spring Ligament Repair

Foot & Ankle Orthopaedics ◽

10.1177/2473011419s00172 ◽

2019 ◽

Vol 4 (4) ◽

pp. 2473011419S0017

Author(s):

Jason Fogleman ◽

Christopher Kreulen ◽

Aida Sarcon ◽

Patrick Michelier ◽

Rachel Swafford ◽

...

Keyword(s):

Weight Bearing ◽

Radiographic Evaluation ◽

Ligament Repair ◽

First Metatarsal ◽

Spring Ligament ◽

Radiographic Parameters ◽

Metatarsal Angle ◽

Medial Cuneiform ◽

Suture Tape

Category: Flatfoot reconstruction Introduction/Purpose: Adult acquired flatfoot often results from posterior tibial tendon dysfunction followed by attenuation of the ligamentous support of the medial longitudinal arch of the foot. The spring ligament is the strongest ligamentous support for the talonavicular joint making it a viable target for flatfoot reconstruction procedures. There are concerns that direct repair of the spring ligament complex could result in failure as the already attenuated tissues of the ligament stretch out with mobilization and weight bearing. Suture tape augmentation of ligament repairs has shown greater loads to failure in biomechanical testing; however, there is a paucity of data surrounding clinical and radiographic outcomes of flatfoot reconstruction with augmented spring ligament repair. Methods: A retrospective review was performed of patients who underwent flatfoot reconstruction including spring ligament repair with suture tape augmentation between July 2014 and August 2017. Weight bearing radiographs were obtained for all patients both pre-operatively and at their last available follow-up. All radiographs were assessed by two surgeons for validated radiographic parameters including AP talocalcaneal angle, AP talo-first metatarsal angle, AP talar uncoverage, lateral talocalcaneal angle, lateral talo-first metatarsal (Meary) angle, lateral medial cuneiform-fifth metatarsal height, and lateral calcaneal pitch. Paired sample T-tests were used to compare pre-operative and post-operative radiographic measurements to assess for correction of these parameters. Results: 57 patients met inclusion criteria. The average time to final radiographic evaluation was 47 weeks (10 to 200 weeks). All radiographic parameters assessed showed significant correction when compared to pre-operative measurements. The average correction for each parameter included 6.02 degrees for AP talocalcaneal angle (p<0.001), 10.96 degrees for AP talo-first metatarsal angle (p<0.001), 12.65% for AP talar uncoverage percentage (p<0.001), 4.27 degrees for lateral talocalcaneal angle (p<0.001), 11.35 degrees for lateral talo-first metatarsal (Meary) angle (p<0.001), 8.31 mm for lateral medial cuneiform-fifth metatarsal height (p<0.001), and 2.91 degrees for lateral calcaneal pitch (p<0.001). Post-operative complications occurred in 5 patients. Conclusion: Reconstruction of adult acquired flatfoot with spring ligament repair using suture tape augmentation is a safe procedure that resulted in significant weight bearing radiographic correction at an average of 47 weeks follow-up.

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Roentgenographs Study of Cavus Foot Deformity in Friedreich Ataxia Patients: Preliminary Report

Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques ◽

10.1017/s0317167100043791 ◽

1982 ◽

Vol 9 (2) ◽

pp. 113-117 ◽

Cited By ~ 3

Author(s):

P. Allard ◽

J.P. Sirois ◽

P.S. Thiry ◽

G. Geoffroy ◽

M. Duhaime

Keyword(s):

Inclination Angle ◽

Weight Bearing ◽

Friedreich Ataxia ◽

Quantitative Description ◽

Foot Deformity ◽

First Metatarsal ◽

Metatarsal Angle ◽

Cavus Foot ◽

Three Stages

SUMMARY:The preliminary results based on a three year retrospective study in cavus foot deformity of forty-four Friedreich ataxia patients regularly seen at the Neuromuscular Disease Clinic of Sainte-Justine Hospital have been presented. An accurate “weight-bearing” foot stereoradiographic technique has been recently developed by our group. Since the follow-up period with this device is not sufficient to provide statistical information, the conventional non-weight bearing technique has been utilized in this study to enable a possible comparison between the radiographs of ambulant and non-ambulant patients. Due to the present technique, the results of this study must be interpreted with caution.For 132 pairs of radiographs, 28 parameters have been analyzed. Four of these, namely the calcaneal inclination angle, the first metatarsal inclination angle, the inferior cortex of calcaneus-first metatarsal angle and the first-fifth metatarsals angle, were of particular interest. From these parameters, a preliminary quantitative description of cavus foot deformity in Friedreich’s ataxia has been attempted. Three stages of evolution have been tentatively identified for this type of neurological disorder.

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Comparison between Weight Bearing Radiographs and Weight Bearing ConeBeam CT Examinations in the Assessment of Adult Acquired Flatfoot Deformity

Foot & Ankle Orthopaedics ◽

10.1177/2473011417s000152 ◽

2017 ◽

Vol 2 (3) ◽

pp. 2473011417S0001

Author(s):

Cesar de Cesar Netto ◽

Lew Schon ◽

Apisan Chinanuvathana ◽

Francois Lintz ◽

Lucas Furtado Da Fonseca

Keyword(s):

Pearson Correlation ◽

Weight Bearing ◽

Three Dimensional ◽

Imaging Modalities ◽

Anatomical Landmarks ◽

First Metatarsal ◽

Metatarsal Angle ◽

Medial Cuneiform ◽

Adult Acquired Flatfoot Deformity ◽

Conebeam Ct

Category: Hindfoot Introduction/Purpose: Adult acquired flatfoot deformity (AAFD) represents a biomechanical derangement involving the three- dimensional (3D) midfoot and hindfoot osseous complex, and can be challenging to optimally characterize using conventional two- dimensional (2D) plain radiographs. Weightbearing (WB) ConeBeam CT (CBCT) can better demonstrate the deformity of the 3D structures during WB. Therefore, we compared validated AAFD measurements between WB conventional radiographs and WB CBCT images. Methods: In this prospective, IRB approved and HIPAA compliant study, 20 patients (20 feet, 15 right and 5 left) with clinical diagnosis of flexible AAFD were included, 12 males and 8 females, with a mean age of 52.2 years (range, 20 to 88 years of age), and average BMI of 30.35 kg/m2 (range, 19.00 to 46.09 kg/m2). Involved feet underwent standing (WB) anteroposterior (AP) and lateral radiographs, and were also scanned by WB CBCTs. Both imaging modalities were assessed with traditional AAFD measurements obtained at sagittal (lateral view on radiograph) and axial (anteroposterior view on radiograph) planes using predefined anatomical landmarks, by two independent and blinded foot and ankle fellowship-trained observers. Intra- and Inter- observer reliabilities for both imaging modalities were calculated using Pearson correlation. WB radiograph and WB CBCT measurements were compared by T-Test of the means. P- values < 0.05 were considered significant. Results: There was good to excellent intra and inter-observer agreements for most of the measurements on both radiographs and WB CBCT images, with slightly better results favoring WBCT measurements. When comparing WB radiographs and WB CBCT images, we found significant differences in the mean values for some of the measurements, including: talus-first metatarsal angle in the sagittal plane (11.34° x 21.73°, p<0.0001), navicular-medial cuneiform angle (13.19° x 7.63°, p<0.0004), medial cuneiform to floor distance (6.70 mm x 5.50 mm, p<0.0003) and navicular to floor distance (31.34 mm x 23.22 mm, p<0.0001). No significant differences were found when measuring: talus-first metatarsal angle in the axial plane, talar uncoverage angle, cuboid to floor distance and calcaneal inclination angle. Conclusion: Traditional adult acquired flatfoot deformity radiographic measurements are obtainable using high resolution 3D WB CBCT imaging. Measurements performed on WB CBCT have similar intra-observer and overall higher inter-observer reliability when compared to WB radiographs. The statistically significant differences found in some of the measurements, when comparing both imaging techniques, might be related to a better characterization of the three-dimensional deformity on WB CBCT images.

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Radiographic Measurements Associated with the Natural Progression of the Hallux Valgus Deformity during at Least Two Years of Follow-up

Foot & Ankle Orthopaedics ◽

10.1177/2473011417s000255 ◽

2017 ◽

Vol 2 (3) ◽

pp. 2473011417S0002 ◽

Cited By ~ 1

Author(s):

Kyoung Min Lee ◽

Seung Yeol Lee ◽

Sonya Ahmed ◽

Byung Chae Cho ◽

Moon Seok Park ◽

...

Keyword(s):

Hallux Valgus ◽

Weight Bearing ◽

Binary Logistic Regression ◽

Valgus Deformity ◽

Binary Logistic Regression Analysis ◽

First Metatarsal ◽

Hallux Valgus Deformity ◽

Metatarsal Angle ◽

Radiographic Measurements

Category: Bunion Introduction/Purpose: There have been few longitudinal studies regarding hallux valgus deformity. This retrospective study aimed to investigate the radiographic measurements associated with the progression of hallux valgus deformity during at least two years of follow-up. Methods: Seventy adult patients (mean age, 58.0 years; standard deviation [SD], 12.3 years; 13 males and 57 females) with hallux valgus who were followed-up for at least two years and underwent weight-bearing foot radiography were included. Radiographic measurements included the hallux valgus angle (HVA), hallux interphalangeal angle, intermetatarsal angle (IMA), metatarsus adductus angle, distal metatarsal articular angle (DMAA), tibial sesamoid position, anteroposterior (AP) talo-first metatarsal angle, and lateral talo-first metatarsal angle. Progression of hallux valgus deformity was defined as an increase of 5 degrees or more in the HVA during follow-up. Patients were divided into progressive and non-progressive groups. Binary logistic regression analysis was performed to identify factors that significantly affect the progression of hallux valgus deformity. The correlation between change in HVA and changes in other radiographic indices during follow-up was analyzed. Results: Eighteen out of 70 patients showed progression of 5 degrees or more in the HVA during the mean follow-up of 47.0 months (SD, 19.8 months). The DMAA (p=0.027) and AP talo-first metatarsal angle (p=0.034) at initial presentation were found to be significant factors affecting the progression of hallux valgus deformity. Change in the HVA during follow-up was significantly correlated with changes in the IMA (r=0.423; p=0.001) and DMAA (r=0.541; p<0.001). Conclusion: Special attention needs to be given to patients with pes planovalgus and increased DMAA during follow-up. Change in HVA was significantly correlated with changes in IMA and DMAA. Therefore, progression of hallux valgus deformity is considered to be closely related to the progressive instability of the first tarsometatarsal joint.

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Identification of the Medial Column Line collapse variation is Crucial in Flat Foot Management

Foot & Ankle Orthopaedics ◽

10.1177/2473011418s00340 ◽

2018 ◽

Vol 3 (3) ◽

pp. 2473011418S0034 ◽

Cited By ~ 1

Author(s):

Lyndon Mason ◽

Joseph Alsousou ◽

Phil Ellison ◽

Andrew Molloy

Keyword(s):

Weight Bearing ◽

Radiographic Evaluation ◽

Tibialis Posterior ◽

Anatomical Location ◽

Talonavicular Joint ◽

Flat Foot ◽

Pes Planus ◽

Operative Strategy ◽

Spring Ligament ◽

Metatarsal Angle

Category: Midfoot/Forefoot Introduction/Purpose: The incompetence of both dynamic and static structures in the foot is responsible for acquired pes planus deformity. The aim of this study was to identify the anatomical location of the midfoot break in symptomatic pes planus deformity, and its relationship with other pes planus radiographic foot measurements. Methods: We completed the radiographic evaluation of 75 feet diagnosed with symptomatic pes planus. The break in the medial column line (Meary’s line) was measured on the lateral radiograph at the intersection of the anatomical axis of the talus and the first metatarsal. Pes planus measurements were performed on each the weight-bearing AP and lateral radiographs, including talonavicular coverage angle, talar – first/ second metatarsal angle, talar uncoverage, talocalcaneal angle, Meary’s angle line break, calcaneal and talar inclination, talocalcaneal angle, cuneiform - metatarsal, tarsal joints angles and distances. Due to Gaussian distribution, unpaired t-test and ANOVA tests were used. Results: The medial column line collapse was at the talonavicular joint in 77.3%, naviculocuneiform in 20%, and cuneiform metatarsal in 2.6%. The line angle severity was proportional to the talonavicular coverage angle and talar uncoverage (p 0.001, R2 0.4915 and P 0.003, R2 0.223). On comparison of the 3 line-break groups, the talocalcaneal angle was significantly higher when the line break was at talonavicular joint (P 0.001) although Meary’s angle was not significantly more severe. Conclusion: The apex of the medial column collapse occurs not only at the talonavicular joint but also distal to the spring ligament and tibialis posterior insertion. Foot abduction increases with the increase in the line collapse regardless of the breaking point. Talus flexion is worse if the arch collapse is at the talonavicular joint, suggesting incompetency of the spring ligament. Assessing the apex of deformity is essential to decide the correct operative strategy.

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Outcomes after Tibiocalcaneonavicular Ligament Reconstruction in Stage IIB and Stage IV Adult Acquired Flatfoot Deformity

Foot & Ankle Orthopaedics ◽

10.1177/2473011420s00366 ◽

2020 ◽

Vol 5 (4) ◽

pp. 2473011420S0036

Author(s):

Rusheel Nayak ◽

Milap Patel ◽

Anish R. Kadakia

Keyword(s):

Patient Reported Outcomes ◽

Stage Iv ◽

Deltoid Ligament ◽

First Metatarsal ◽

Spring Ligament ◽

Radiographic Outcomes ◽

Radiographic Parameters ◽

Metatarsal Angle ◽

Patient Reported ◽

Adult Acquired Flatfoot Deformity

Category: Hindfoot; Ankle; Midfoot/Forefoot Introduction/Purpose: The tibiocalcaneonavicular ligament (TCNL) is formed from the confluence of the superficial deltoid ligament and the superomedial spring ligament. In advanced flexible adult acquired flatfoot deformity (AAFD), progressive strain on the TCNL can lead to spring ligament tears, deltoid insufficiency, and eventual medial peritalar instability. Historically, medial peritalar instability was corrected using calcaneal osteotomy in conjunction with isolated spring or deltoid reconstruction. A recent study (Brodell et al.) demonstrated the efficacy of TCNL reconstruction in patients with medial peritalar instability. The purpose of this study is to add to this literature using patient-reported and radiographic outcomes in patients undergoing TCNL reconstruction. Patient-reported outcomes were collected using Patient Reported Outcomes Measurement Information System (PROMIS) Physical Function (PF) and Pain Interference (PI) surveys. Methods: Sixteen patients (mean age 50.25 years; 11 female, 5 male) who underwent TCNL reconstruction were prospectively identified. TCNL reconstruction was indicated for stage IIB patients (n=13) with large spring ligament tears (>1.5cm on MRI or intraoperatively) or if osseous correction did not provide adequate talonavicular joint correction. TCNL reconstruction was indicated in stage IV patients (n=3) if deltoid reconstruction required additional medial stabilization. No patients underwent lateral column lengthening osteotomies. PROMIS scores were obtained at baseline and at minimum 12-months follow-up (average 16 months). Surgical success was determined using minimum clinically important differences (MCID), defined as improvement greater than one-half the standard deviation of each pre-operative PROMIS domain (PF: +2.9 and PI: -2.5). Pre- and post-operative radiographic parameters were measured: talonavicular uncoverage angle, talonavicular uncoverage percentage, AP talo-first metatarsal angle, Meary’s angle, and medial cuneiform height (MCH). Correlation coefficients determined the relationship between radiographic parameters and PROMIS scores. Results: PROMIS PF scores improved significantly from 38.1+-5.8 to 44.1+-7.1 (p=0.0087). PROMIS PI scores improved significantly from 62.9+-5.1 to 52.3+-8.9 (p=0.0025). Seventy-nine and 77 percent of patients had successful surgeries, as defined by MCIDs in the PROMIS PF and PI domains, respectively. Talonavicular uncoverage percentage and Meary’s angle improved significantly from 34.4+-13.4 to 26.3+-9.9 percent (p=0.0360) and 19.2+-8.8 to 15.3+-6.2 degrees (p=0.0089), respectively. Talonavicular uncoverage angle improved from 29.3+-9.6 to 23.3+-8.0 degrees (p=0.0562), AP talo-first metatarsal angle improved from 15.2+-10.2 to 10.4+-9.0 degrees (p=0.0555), and MCH improved from 13.5+-6.2 to 15.9+-4.8 millimeters (p=0.1374). Post- operative MCH correlated significantly with post-operative PROMIS PF scores (r=0.5941; p=0.0152). Change in AP talo-first metatarsal angle correlated significantly with change in PROMIS PI scores (r=0.5682; p=0.0427). No other correlations were significant. Conclusion: Patients with stage IIB and stage IV AAFD who undergo TCNL reconstructions have excellent patient-reported and radiographic outcomes. Reconstruction of the medial longitudinal arch, as measured by post-operative MCH, is associated with higher post-operative functionality. Surgical correction of midfoot abduction, as measured by change in the AP talo-first metatarsal angle after surgery, is associated with improvements in pain. In patients with medial peritalar instability, TCNL reconstruction can be a valuable technique to correct the sagittal arch, prevent excessive midfoot abduction, and improve pain and functionality.

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Outcome of Ilizarov assisted ankle arthrodesis

International Surgery Journal ◽

10.18203/2349-2902.isj20180015 ◽

2018 ◽

Vol 5 (2) ◽

pp. 433

Author(s):

Priyajit Chattopadhyay ◽

Paras Kumar Banka ◽

Anindya Debnath ◽

Sanjay Kumar

Keyword(s):

Dynamic Compression ◽

Weight Bearing ◽

Major Complication ◽

Ankle Arthrodesis ◽

Time Interval ◽

Early Weight Bearing ◽

Ilizarov Fixator ◽

American Orthopaedic ◽

Second Procedure

Background: Among the various techniques used for ankle arthrodesis, Ilizarov technique has various advantages along with the potential for treating complex and failed cases.Methods: Eleven cases were undertaken for ankle arthrodesis using the Ilizarov fixator. Two rings were applied along the tibia and one at the talus/calcaneum. The articular cartilage was denuded, and dynamic compression applied. The clinical, functional and radiological outcome were evaluated. The goal was a stable fusion with a well aligned foot.Results: The mean follow-up period was 95 weeks. Fusion was achieved in all cases with no major complication. Only one case had a residual deformity. The average time interval for the ankle fusion was 140.8±25.7 days. The postoperative modified American Orthopaedic Foot and Ankle Society (AOFAS) Hindfoot score was 67.5±9.6 points.Conclusions: Ilizarov assisted ankle arthrodesis aids in early weight bearing, better alignment, and has good functional outcomes even in cases with previously failed procedures. It has the advantage of postoperative readjustment of the arthrodesis without the need of any second procedure with no major complications.

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A Modified Extra-articular Lateral Column Lengthening Procedure for Adult Acquired Flatfoot Deformity

Foot & Ankle International ◽

10.1177/10711007211051359 ◽

2021 ◽

pp. 107110072110513

Author(s):

Yin-Chuan Shih ◽

Chui Jia Farn ◽

Chen-Chie Wang ◽

Chung-Li Wang ◽

Pei-Yu Chen

Keyword(s):

Subtalar Joint ◽

Case Series ◽

Stage Ii ◽

Posterior Tibial Tendon ◽

Lateral Column ◽

Metatarsal Angle ◽

Lateral Column Lengthening ◽

Adult Acquired Flatfoot Deformity ◽

The Mean

Background: Lateral column lengthening (LCL), originally described by Evans, is an established procedure to correct stage II adult acquired flatfoot deformity (AAFD). However, the relative position between the facets is violated, and other problems may include nonunion, malunion, and calcaneocuboid (CC) joint subluxation. Herein, we report a modified extra-articular technique of LCL with hockey-stick osteotomy, which preserves the subtalar joint as a whole, increases bony apposition to enhance healing ability, and preserves the insertion of the calcaneofibular ligament to stabilize the posterior fragment to promote adduction of the forefoot. Methods: We retrospectively recruited 24 patients (26 feet) with stage II AAFD who underwent extra-articular LCL. The mean age was 55.7 ± 15.7 years, and the mean follow-up period was 33.4 ± 12.1 months. Associated procedures of spring ligament repair/reconstruction and posterior tibial tendon plication or flexor digitorum longus transfer were routinely performed and may also include a Cotton osteotomy, heel cord lengthening, or hallux valgus correction. Clinical and radiographic outcomes at the final follow-up were compared with the preoperative assessments. Results: All patients achieved calcaneus union within 3 months of operation. The VAS pain score improved from 5.3 ± 0.75 preoperatively to 1.2 ± 0.79 at the final follow-up ( P < .001), and the AOFAS Ankle-Hindfoot Scale from 63.5 ± 8.5 to 85.8 ± 4.8 points ( P < .001). The radiographic measurements significantly improved in terms of the preoperative vs final angles of 8.9 ± 5.3 vs 15.2 ± 3.6 degrees for calcaneal pitch ( P < .001), 20.5 ± 9.2 vs 4.9 ± 4.8 degrees for Meary angle ( P < .001), 46.5 ± 5.2 vs 41.9 ± 3.2 degrees for lateral talocalcaneal angle ( P < .001), 23.9 ± 8.5 vs 3.9 ± 3.1 degrees for talonavicular coverage angle ( P < .001), and 18.2 ± 9.2 vs 7.3 ± 5.0 degrees for talus-first metatarsal angle ( P = .002). The CC joint subluxation percentage was 7.0% ± 5.4% preoperatively compared with 8.5% ± 2.4% at the final follow-up ( P = .101). No case showed progression of CC joint arthritis or CC joint subluxation (>15% CC joint subluxation percentage). One case showed transient sural nerve territory paresthesia, and 1 had pin tract infection. Three cases had lateral foot pain, which could be relieved by custom insoles. Conclusion: Modified extra-articular LCL as part of AAFD correction is a feasible alternative technique without subtalar joint invasion and may be associated with less CC joint subluxation compared with the Evans osteotomy. Level of Evidence: Level IV, retrospective case series.

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Radiographic Outcomes after Fixation of Distal Metatarsal Osteotomy for Hallux Valgus Using a Tension Band Construct

Foot & Ankle Orthopaedics ◽

10.1177/2473011419s00428 ◽

2019 ◽

Vol 4 (4) ◽

pp. 2473011419S0042

Author(s):

Alexander Volpi ◽

Robert Zbeda ◽

Christopher Katchis ◽

Lon Weiner ◽

Stuart Katchis

Keyword(s):

Hallux Valgus ◽

Postoperative Period ◽

Weight Bearing ◽

Line Tension ◽

Tension Band ◽

Metatarsal Osteotomy ◽

First Metatarsal ◽

Distal Metatarsal Osteotomy ◽

The Mean

Category: Bunion Introduction/Purpose: Hallux valgus is a common deformity of the forefoot. There are over 130 procedures described to correct hallux valgus. Classically, the treatment of mild to moderate hallux valgus is with a distal metatarsal osteotomy. A variety of fixation techniques have been described for use with this osteotomy most of which require partial or non-weight bearing until the osteotomy is healed. Tension Band fixation is a well-known principle in orthopedic surgery. The goal of the present study is to radiographically assess the maintenance of distal first metatarsal osteotomy fixation using a novel tension band device (Re+Line tension band bunion plate system, Nextremity Solutions) with immediate post-operative weight-bearing. Methods: The patient database for one surgeon was retrospectively reviewed for patients that underwent hallux valgus correction with the Re+Line tension band device between 2014 and 2017. Postoperative protocol included a soft dressing, firm surgical shoe, and weight-bearing as tolerated with a cane. Patients were excluded if fixation was achieved with something other than a tension band construct. Radiographs were obtained and reviewed retrospectively by 3 authors. Pre and postoperative hallux valgus (HVA) and intermetatarsal angles (IMA) were measured as described previously in the literature, and the changes in correction compared. Maintenance of correction and hardware integrity were assessed at final follow-up after weight bearing as tolerated in a surgical shoe in the postoperative period. Statistical analysis was performed using a Wilcoxon signed-rank test for the changes in HVA and IMA. Results: There was a total of 72 patients and 76 toes that underwent hallux valgus correction with a tension band construct, at a mean follow-up of 4.36 months. 68 of 72 patients were female. The average age was 60.8 years old. The mean preoperative HVA was 27.1 degrees. The mean postoperative HVA was 6.14 degrees, with a mean correction of 20.22 degrees (p<0.001). The mean preoperative IMA was 14.14 degrees. The mean postoperative IMA was 6.10 degrees, with a mean correction of 7.98 degrees (p<0.001). There was loss of reduction found in 6 of 76 toes (7.89%).There were zero cases of hardware failure. All osteotomies healed at final follow-up. Conclusion: This study shows successful radiographic outcome after hallux valgus correction using a tension band construct and allowing immediate full weight-bearing in a surgical shoe in the postoperative period. Significant deformity correction was achieved and maintained and all osteotomies healed. The Re+Line tension band bunion correction system can be safely used as a successful option to fix distal first metatarsal osteotomies, while allowing patients to fully weight bear in a surgical shoe postoperatively and potentially return to activities faster than when using traditional fixation methods. Future studies are needed to assess functional outcomes and patient satisfaction with this novel technique.

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Suture anchor stabilization of symptomatic accessory navicular in adolescents: Clinical and radiographic outcomes

Journal of Orthopaedic Surgery ◽

10.1177/2309499020918949 ◽

2020 ◽

Vol 28 (2) ◽

pp. 230949902091894

Author(s):

Masataka Kakihana ◽

Yuki Tochigi ◽

Takayuki Yamazaki ◽

Masanori Ohashi ◽

Satoru Ozeki

Keyword(s):

Tilt Angle ◽

Suture Anchor ◽

Weight Bearing ◽

Bone Union ◽

First Metatarsal ◽

Radiographic Outcomes ◽

Metatarsal Angle ◽

Radiographic Measurements ◽

Accessory Navicular ◽

Stabilization Technique

Background: Screw fixation used in modified Kidner procedures to treat persistent symptomatic accessory navicular in adult cases is often challenging in adolescent cases with a small accessory fragment. The present study aimed to document the clinical effect of a suture anchor stabilization technique applicable to such cases where osteosynthesis is considered an ideal outcome. Methods: Consecutive clinical cases who received this surgical treatment from 2009 to 2016 were retrospectively reviewed. The focus of interest included radiographic union of the accessory bone, changes in symptoms evaluated using a validated clinical outcome scale introduced by the Japanese Society for Surgery of the Foot, and changes in the medial arch bony alignment measured in lateral weight-bearing plain radiographs. Results: Twenty-two feet in 15 individuals (11 females and 4 males, age at surgery 10–16 years) were identified. In 14 feet (64%), radiographic bone union was confirmed within 8 weeks postoperatively. At the final follow-up ranging 12–51 months postoperation, the clinical scores have significantly improved ( p < 0.001) to 96 ± 5.71 (mean ± standard deviation, range 87–100), from 54 preoperatively. Radiographic measurements revealed significant postoperative increase of the sagittal talar tilt angle ( p < 0.001, increment 4 ± 3°, range 0–11) and the talo-first metatarsal angle ( p < 0.001, increment 5 ± 4°, range 0–12). No significant changes were identified in the calcaneal pitch angle, first metatarsal tilt angle, calcaneo-navicular angle, and the navicular height. Conclusion: Despite the modest bone union rate, the clinical outcomes suggest distinct symptom-relieving effect, at least in the short- to midterm, while the radiographic measurements suggest positive biomechanical effects. The present suture-anchor stabilization concept appears to be a promising treatment option for persistent symptomatic accessory navicular in adolescent cases.

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