Arthroscopic subtalar arthrodesis – results and complications

Objective: The objective of this study is to evaluate the results and complications of the subtalar arthrodesis technique conducted via arthroscopy. Methods: Searches were run on PubMed/Medline and Google Scholar for publications dated from 2007 to 2020. Original articles were included that reported the results of at least one comparative postoperative scale. Methodological quality was assessed using the PRISMA tool. Union rate, complications, and the American Orthopedic Foot and Ankle Society (AOFAS) score were prioritized. Results: A total of 124 references were identified and, after application of the inclusion and exclusion criteria and the PRISMA tool, 9 articles were eligible. A total of 180 patients were analyzed, with mean postoperative follow-up of 18 months (± 6) and with before and after AOFAS scores varying from 44 to 79 with p<0.001, demonstrating statistical relevance with significant improvement of AOFAS scores during the postoperative period. Deformity correction, improvement of pain, and rates of union were good and there was clinical improvement according to postoperative AOFAS scores, with few complications. However, the heterogeneous nature of studies, withvariations in techniques and samples, prevents generalization of the findings. Conclusion: The results of arthroscopic surgery for subtalar arthrodesis are good and rates of complications are low, but there are stillfew studies with high evidence levels that demonstrate the efficacy of the technique, although preliminary results are encouraging. Level of Evidence I; Therapeutic Studies; Systematic Review.

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Hip Dislocation and Subluxation in Athletes: A Systematic Review

The American Journal of Sports Medicine ◽

10.1177/03635465211036104 ◽

2021 ◽

pp. 036354652110361

Author(s):

Deepak V. Chona ◽

Paul D. Minetos ◽

Christopher M. LaPrade ◽

Mark E. Cinque ◽

Geoffrey D. Abrams ◽

...

Keyword(s):

Systematic Review ◽

Arthroscopic Surgery ◽

Treatment Strategies ◽

Hip Dislocation ◽

Return To Play ◽

Exclusion Criteria ◽

Level Of Evidence ◽

Radiographic Outcomes ◽

Center Edge

Background: Hip dislocation is a rare occurrence during sports but carries serious implications for athletes. Purpose: To systematically review treatment strategies and outcomes for hip dislocation in athletes, with the ultimate goal of providing sports medicine physicians with the information necessary to appropriately treat and counsel patients sustaining this injury. Study Design: Systematic review; Level of evidence, 4. Methods: PubMed, MEDLINE, and Embase were searched for studies relating to hip instability and athletics from January 1, 1989 to October 1, 2019. Abstracts and articles were evaluated on the basis of predefined inclusion and exclusion criteria. Inclusion criteria were the following: (1) data from ≥1 patients, (2) native hip dislocation or subluxation occurring during sports, (3) patients aged at least 10 years, and (4) written in English. Exclusion criteria were (1) patients younger than 10 years; (2) nonnative or postoperative hip dislocation or subluxation; (3) a native hip injury without dislocation or subluxation; (4) patients with dislocation or subluxation secondary to neuromuscular, developmental, or syndromic causes; (5) dislocation or subluxation not occurring during sports; (6) patients with physeal fractures; or (7) review articles or meta-analyses. Data were recorded on patient demographics, injury mechanism, treatment strategies, and clinical and radiographic outcomes. Where possible, pooled analysis was performed. Studies were grouped based on reported outcomes. Meta-analysis was then performed on these pooled subsets. Results: A total of 602 articles were initially identified, and after screening by 2 reviewers, 27 articles reporting on 145 patients were included in the final review. There were 2 studies that identified morphological differences between patients with posterior dislocation and controls, including decreased acetabular anteversion ( P = .015 and .068, respectively), increased prevalence of a cam deformity ( P < .0035), higher alpha angles ( P≤ .0213), and decreased posterior acetabular coverage ( P < .001). No differences were identified for the lateral center edge angle or Tonnis angle. Protected postreduction weightbearing was most commonly prescribed for 2 to 6 weeks, with 65% of reporting authors recommending touchdown, toe-touch, or crutch-assisted weightbearing. Recurrence was reported in 3% of cases. Overall, 4 studies reported on findings at hip arthroscopic surgery, including a 100% incidence of labral tears (n = 27; 4 studies), 92% incidence of chondral injuries, 20% incidence of capsular tears, and 84% incidence of ligamentum teres tears (n = 25; 2 studies). At final follow-up, 86% of patients reported no pain (n = 14; 12 studies), 87% reported a successful return to play (n = 39; 10 studies), and 11% had radiographic evidence of osteonecrosis (n = 38; 10 studies). Conclusion: Various treatment strategies have been described in the literature, and multiple methods have yielded promising clinical and radiographic outcomes in patients with native hip dislocation sustained during sporting activity. Data support nonoperative treatment with protected weightbearing for hips with concentric reduction and without significant fractures and an operative intervention to obtain concentric reduction if unachievable by closed means alone. Imaging for osteonecrosis is recommended, with evidence suggesting 4- to 6-week magnetic resonance imaging and follow-up at 3 months for those with suspicious findings in the femoral head.

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In Search of the Spherical Femoroplasty: Cam Overresection Leads to Inferior Functional Scores Before and After Revision Hip Arthroscopic Surgery

The American Journal of Sports Medicine ◽

10.1177/0363546518779064 ◽

2018 ◽

Vol 46 (9) ◽

pp. 2061-2071 ◽

Cited By ~ 26

Author(s):

Yosif Mansor ◽

Itay Perets ◽

Mary R. Close ◽

Brian H. Mu ◽

Benjamin G. Domb

Keyword(s):

Femoral Head ◽

Arthroscopic Surgery ◽

Alpha Angle ◽

Harris Hip Score ◽

Level Of Evidence ◽

Neutral Group ◽

Common Procedure ◽

Functional Scores ◽

Before And After

Background: Femoroplasty performed for the treatment of cam-type femoroacetabular impingement (FAI) has become a common procedure. Underresection may result in residual FAI. Conversely, overresection may disrupt the labral seal, which is responsible for chondroprotective fluid dynamics of the hip. Hypothesis/Purpose: It was hypothesized that cam overresection negatively affects hip function. The purpose was to examine the effect of the accuracy of previous femoroplasty on hips presenting for revision hip arthroscopic surgery. Study Design: Cohort study; Level of evidence, 3. Methods: Data were prospectively collected for patients presenting for revision hip arthroscopic surgery between June 2010 and August 2014. On the basis of measurements on Dunn view radiographs, cases were divided into 3 groups: overresection (OR group) in which overresection measured over 5% of the diameter of the femoral head, underresection (UR group) in which there was a residual cam lesion (alpha angle >60°), and neutral resection (neutral group). Data collection included the modified Harris Hip Score (mHHS), Nonarthritic Hip Score (NAHS), Hip Outcome Score–Sports-Specific Subscale, and visual analog scale at presentation and at a minimum 2-year follow-up after revision hip arthroscopic surgery and rates of conversion to total hip arthroplasty (THA). Results: One hundred thirty hips (120 patients) were included. Twenty hips (15.4%) were classified as the OR group, 16 (12.3%) as the UR group, and 94 (72.3%) as the neutral group. The mean follow-up was 39.6 ± 15.9 months. The mHHS and NAHS values at presentation were lower in the OR group compared with the UR group (50.2 ± 15.5 vs 64.7 ± 19.4 [ P = .033] and 48.5 ± 18.6 vs 63.0 ± 19.1 [ P = .044], respectively). The mHHS value at a minimum 2-year follow-up after revision was lower for the OR group (66.7 ± 19.8) than for the UR group (81.0 ± 14.5) ( P = .031). Conversion to THA was more common in the OR group than in the UR group (30% vs 0%, respectively; P = .024). Fifty percent of cases in the OR group, 69.9% in the neutral group, and 75% in the UR group met the minimal clinically important difference for the mHHS (Δ). The latest mHHS value reached the patient acceptable symptomatic state (PASS) in 35% of the cases in the OR group, 53.2% in the neutral group, and 75% in the UR group. Hips in the OR group had a significantly lower chance of reaching the PASS than the UR group (odds ratio, 0.1795 [95% CI, 0.0418-0.7711]; P = .0209). Conclusion: Cam overresection of more than 5% of the diameter of the femoral head on the Dunn view predicts inferior clinical outcomes compared with cam underresection in this population. Furthermore, overresection predicts inferior outcomes after revision hip arthroscopic surgery and higher rates of conversion to THA.

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Lateral open wedge calcaneus osteotomy with bony allograft augmentation in adult acquired flatfoot deformity. Clinical and radiological results

European Journal of Orthopaedic Surgery & Traumatology ◽

10.1007/s00590-021-02888-3 ◽

2021 ◽

Author(s):

Gabriele Colo’ ◽

Mattia Alessio Mazzola ◽

Giulio Pilone ◽

Giacomo Dagnino ◽

Lamberto Felli

Keyword(s):

Range Of Motion ◽

Case Series ◽

Deformity Correction ◽

Tibialis Posterior ◽

Open Wedge ◽

Foot And Ankle ◽

Retrospective Case ◽

Level Of Evidence ◽

Adult Acquired Flatfoot Deformity

Abstract The aim of this study is to evaluate the results of patients underwent lateral open wedge calcaneus osteotomy with bony allograft augmentation combined with tibialis posterior and tibialis anterior tenodesis. Twenty-two patients underwent adult-acquired flatfoot deformity were retrospectively evaluated with a minimum 2-year follow-up. Radiographic preoperative and final comparison of tibio-calcaneal angle, talo–first metatarsal and calcaneal pitch angles have been performed. The Visual Analog Scale, American Orthopedic Foot and Ankle Score, the Foot and Ankle Disability Index and the Foot and Ankle Ability Measure were used for subjective and functional assessment. The instrumental range of motion has been also assessed at latest follow-up evaluation and compared with preoperative value. There was a significant improvement of final mean values of clinical scores (p < 0.001). Nineteen out of 22 (86.4%) patients resulted very satisfied or satisfied for the clinical result. There was a significant improvement of the radiographic parameters (p < 0.001). There were no differences between preoperative and final values of range of motion. One failure occurred 7 years after surgery. Adult-acquired flatfoot deformity correction demonstrated good mid-term results and low recurrence and complications rate. Level of evidence Level 4, retrospective case series.

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Comparing Midterm Outcomes of High-Level Athletes Versus Nonathletes Undergoing Primary Hip Arthroscopy: A Propensity-Matched Comparison With Minimum 5-Year Follow-up

The American Journal of Sports Medicine ◽

10.1177/03635465211041763 ◽

2021 ◽

pp. 036354652110417

Author(s):

Andrew E. Jimenez ◽

Peter F. Monahan ◽

David R. Maldonado ◽

Benjamin R. Saks ◽

Hari K. Ankem ◽

...

Keyword(s):

Hip Arthroscopy ◽

Statistical Significance ◽

Arthroscopic Surgery ◽

Harris Hip Score ◽

Control Group ◽

Level Of Evidence ◽

Femoroacetabular Impingement Syndrome ◽

Patient Reported ◽

High Level

Background: High-level athletes (HLAs) have been shown to have better short-term outcomes than nonathletes (NAs) after hip arthroscopy. Purpose: (1) To report midterm outcomes of HLAs after primary hip arthroscopy and (2) to compare their results with a propensity-matched cohort of NA patients. Study Design: Cohort study; Level of evidence, 3. Methods: Data were prospectively collected and retrospectively reviewed between February 2008 and November 2015 for HLAs (professional, college, or high school) who underwent primary hip arthroscopy in the setting of femoroacetabular impingement syndrome (FAIS). HLAs were included if they had preoperative, minimum 2-year, and minimum 5-year follow-up data for the modified Harris Hip Score (mHHS), Non-Arthritic Hip Score (NAHS), and Hip Outcome Score Sports-Specific Subscale (HOS-SSS). Radiographic and intraoperative findings, surgical procedures, patient-reported outcomes (PROs), patient acceptable symptomatic state (PASS), minimal clinically important difference (MCID), and return to sport were reported. The HLA study group was propensity-matched to a control group of NA patients for comparison. Results: A total 65 HLA patients (67 hips) were included in the final analysis with mean follow-up time of 74.6 ± 16.7 months. HLAs showed significant improvement in all PROs recorded, achieved high rates of MCID and PASS for mHHS (74.6% and 79.4%, respectively) and HOS-SSS (67.7% and 66.1%, respectively), and returned to sport at high rates (80.4%). When compared with the propensity-matched NA control group, HLAs reported higher baseline but comparable postoperative scores for the mHHS and NAHS. HLA patients achieved MCID and PASS for mHHS at similar rates as NA patients, but the HLA patients achieved PASS for HOS-SSS at higher rates that trended toward statistical significance (66.1% vs 48.4%; P = .07). NA patients underwent revision arthroscopic surgery at similar rates as HLA patients (14.9% vs 9.0%, respectively; P = .424). Conclusion: Primary hip arthroscopy results in favorable midterm outcomes in HLAs. When compared with a propensity-matched NA control group, HLAs demonstrated a tendency toward higher rates of achieving PASS for HOS-SSS but similar arthroscopic revision rates at minimum 5-year follow-up.

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Lateral Thoracolumbar Listhesis as an Independent Predictor of Disability in Adult Scoliosis Patients: Multivariable Assessment Before and After Surgical Realignment

Neurosurgery ◽

10.1093/neuros/nyab356 ◽

2021 ◽

Author(s):

Alan H Daniels ◽

Wesley M Durand ◽

Renaud Lafage ◽

Andrew S Zhang ◽

David K Hamilton ◽

...

Keyword(s):

Cobb Angle ◽

Multivariable Analysis ◽

Deformity Correction ◽

Adult Scoliosis ◽

Leg Pain ◽

Minimally Clinically Important Difference ◽

Before And After ◽

Plane Deformity ◽

Numeric Scale

Abstract BACKGROUND Lateral (ie, coronal) vertebral listhesis may contribute to disability in adult scoliosis patients. OBJECTIVE To assess for a correlation between lateral listhesis and disability among patients with adult scoliosis. METHODS This was a retrospective multi-center analysis of prospectively collected data. Patients eligible for a minimum of 2-yr follow-up and with coronal plane deformity (defined as maximum Cobb angle ≥20º) were included (n = 724). Outcome measures were Oswestry Disability Index (ODI) and leg pain numeric scale rating. Lateral thoracolumbar listhesis was measured as the maximum vertebral listhesis as a percent of the superior endplate across T1-L5 levels. Linear and logistic regression was utilized, as appropriate. Multivariable analyses adjusted for demographics, comorbidities, surgical invasiveness, maximum Cobb angle, and T1-PA. Minimally clinically important difference (MCID) in ODI was defined as 12.8. RESULTS In total, 724 adult patients were assessed. The mean baseline maximum lateral thoracolumbar listhesis was 18.3% (standard deviation 9.7%). The optimal statistical grouping for lateral listhesis was empirically determined to be none/mild (<6.7%), moderate (6.7-15.4%), and severe (≥15.4%). In multivariable analysis, listhesis of moderate and severe vs none/mild was associated with worse baseline ODI (none/mild = 33.7; moderate = 41.6; severe = 43.9; P < .001 for both comparisons) and leg pain NSR (none/mild = 2.9, moderate = 4.0, severe = 5.1, P < .05). Resolution of severe lateral listhesis to none/mild was independently associated with increased likelihood of reaching MCID in ODI at 2 yr postoperatively (odds ratio 2.1 95% confidence interval 1.2–3.7, P = .0097). CONCLUSION Lateral thoracolumbar listhesis is associated with worse baseline disability among adult scoliosis patients. Resolution of severe lateral listhesis following deformity correction was independently associated with increased likelihood of reaching MCID in ODI at 2-yr follow-up.

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Return to Play After Hip Arthroscopy Among Tennis Players: Outcomes with Minimum Five-Year Follow-up

10.21203/rs.2.14819/v4 ◽

2020 ◽

Author(s):

David R. Maldonado ◽

Mitchell J. Yelton ◽

Philip J. Rosinsky ◽

Jacob Shapira ◽

Mitchell Meghpara ◽

...

Keyword(s):

Hip Arthroscopy ◽

Cartilage Damage ◽

Arthroscopic Surgery ◽

Return To Sport ◽

Return To Play ◽

Harris Hip Score ◽

Level Of Evidence ◽

Tennis Players ◽

Patient Reported

Abstract Background: Playing tennis is associated with various movements that can lead to labral injuries and may require arthroscopic surgery. While hip arthroscopies have demonstrated good outcomes in athletes, there is limited literature reporting Patient Reported Outcomes (PROs) and return to play in competitive or recreational tennis players after hip arthroscopic surgery. Therefore, the purpose of the present study was to (1) report minimum five-year PROs and return to sport in tennis players who underwent hip arthroscopic surgery and (2) compare outcomes between recreational and competitive tennis players.Methods: Data for patients who underwent hip arthroscopy surgery in the setting of femoroacetabular impingement (FAI) and labral tears between March 2009 and January 2014 and who played tennis at any level within one-year of surgery were retrospectively reviewed. Patients with preoperative and minimum five-year postoperative scores for the following PROs were included: modified Harris Hip Score (mHHS), Non-Arthritic Hip Score (NAHS), Hip Outcome Score-Sport Specific Subscale (HOS-SSS), and visual analog scale (VAS) for pain. Patients with preoperative Tönnis osteoarthritis Grade >1, Workers’ Compensation claims, age > 60 years old, or previous ipsilateral hip surgeries or conditions were excluded. Patient Acceptable Symptomatic State (PASS) and Minimal Clinically Important Difference (MCID) for mHHS and HOS-SSS were calculated. Results: Of 28 patients, 31 hips met all inclusion and exclusion criteria of which 28 (90.3%) had minimum 5-year follow-up (mean: 72.8 ± 13.9 months). There were 3 professional, 3 collegiate, 2 high school, 2 organized amateur, and 18 recreational level tennis players. All PROs significantly improved at latest follow-up: mHHS from 67.0 to 86.7 (P < 0.001), NAHS from 65.9 to 87.2 (P < 0.001), HOS-SSS from 50.0 to 77.9 (P = 0.009), and VAS from 5.4 to 1.8 (P < 0.001). There was a 75.0% return to sport rate. Additionally, 66.7% of patients achieved MCID and 83.3% achieved PASS for mHHS, and 63.6% achieved MCID and 58.3% achieved PASS for HOS-SSS.Conclusion: Regardless of the level of participation, tennis players who underwent hip arthroscopic surgery reported statistically significant PRO improvements. A favorable rate of return to sport was also achieved by players with a continued interest in playing. The severity of cartilage damage was shown to not influence rate of returned to sport nor PROs in this population. The data here may be useful in counseling tennis players of various levels who are considering arthroscopic treatment of a hip injury. Level of Evidence: IV

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Non-vascularized toe phalanx transfer for correction of severe clinodactyly of the thumb in Rubinstein–Taybi syndrome

Journal of Hand Surgery (European Volume) ◽

10.1177/1753193420909784 ◽

2020 ◽

Vol 45 (7) ◽

pp. 715-721

Author(s):

Marie Le Mapihan ◽

Alina Badina ◽

Stéphanie Pannier ◽

Arielle Salon ◽

Chrisophe Glorion ◽

...

Keyword(s):

New Method ◽

New Technique ◽

Level Of Evidence ◽

Before And After ◽

Long Term Follow Up ◽

Osteotomy Technique ◽

Toe Transfer ◽

Delta Phalanx

In Rubinstein–Taybi syndrome, patients may have a particularly severe clinodactyly of the thumb. We evaluated a new method for correction of these severe clinodactylies using non-vascularized toe phalanx transfer as a replacement for the abnormal delta phalanx. Results of the new technique are presented, together with those of an osteotomy technique. We retrospectively recorded the angle of the clinodactyly before and after surgery and at long-term follow-up of 11 osteotomies and five transfers in nine patients from 1990 to 2017. The pre-operative angle of clinodactyli was similar between the two groups with a mean of 59°. After surgery, the correction was equivalent (7° and 11°). At the last follow-up (7 and 18 years), the relapse of clinodactyly was 17° for osteotomies and 1° for phalanx transfers. We noticed growth of the transferred phalanx, resulting in an excellent thumb length. We conclude that non-vascularized toe transfer can be an effective correction of severe clinodactyly and may be more stable than osteotomy in the long-term. Level of evidence: IV

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Arthroscopic-Assisted Versus All-Arthroscopic Ankle Stabilization Technique

Foot & Ankle International ◽

10.1177/1071100720938672 ◽

2020 ◽

Vol 41 (11) ◽

pp. 1360-1367 ◽

Cited By ~ 3

Author(s):

Matteo Guelfi ◽

Gustavo Araujo Nunes ◽

Francesc Malagelada ◽

Guillaume Cordier ◽

Miki Dalmau-Pastor ◽

...

Keyword(s):

Ankle Instability ◽

Clinical Results ◽

Pain Scale ◽

Chronic Ankle Instability ◽

Percutaneous Technique ◽

Aofas Score ◽

Level Of Evidence ◽

Vas Score ◽

The Mean

Background: Both the percutaneous technique with arthroscopic assistance, also known as arthroscopic Broström (AB), and the arthroscopic all-inside ligament repair (AI) are widely used to treat chronic lateral ankle instability. The aim of this study was to compare the clinical outcomes of these 2 arthroscopic stabilizing techniques. Methods: Thirty-nine consecutive patients were arthroscopically treated for chronic ankle instability by 2 different surgeons. The AB group comprised 20 patients with a mean age of 30.2 (range, 18-42) years and a mean follow-up of 19.6 (range, 12-28) months. The AI group comprised 19 patients with a mean age of 30.9 (range, 18-46) years and mean follow-up of 20.7 (range, 13-32) months. Functional outcomes using the American Orthopaedic Foot & Ankle Society (AOFAS) hindfoot score and visual analog pain scale (VAS) were assessed pre- and postoperatively. Range of motion (ROM) and complications were recorded. Results: In both groups the AOFAS and VAS scores significantly improved compared with preoperative values ( P < .001) with no difference ( P > .1) between groups. In the AB group the mean AOFAS score improved from 67 (range, 44-87) to 92 (range, 76-100) and the mean VAS score from 6.4 (range, 3-10) to 1.2 (range, 0-3). In the AI group the mean AOFAS score changed from 60 (range, 32-87) to 93 (range, 76-100) and the mean VAS score from 6.1 (range, 4-10) to 0.8 (range, 0-3). At the final follow-up 8 complications (40%) were recorded in the AB group. In the AI group 1 complication (5.3%) was observed ( P < .05). Conclusion: Both the AB and AI techniques are suitable surgical options to treat chronic ankle instability providing excellent clinical results. However, the AB had a higher overall complication rate than the AI group, particularly involving a painful restriction of ankle plantarflexion and neuritis of the superficial peroneal nerve. Level of Evidence: Level III, retrospective comparative study.

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Limb lengthening in the treatment of posteromedial bowing of the tibia

Journal of Children s Orthopaedics ◽

10.1302/1863-2548.14.200111 ◽

2020 ◽

Vol 14 (5) ◽

pp. 480-487

Author(s):

J. Eric Gordon ◽

Perry L. Schoenecker ◽

Thomas R. Lewis ◽

Mark L. Miller

Keyword(s):

Skeletal Maturity ◽

Deformity Correction ◽

Limb Lengthening ◽

Limb Length Discrepancy ◽

Single Institution ◽

Level Of Evidence ◽

Tibial Lengthening ◽

The Mean ◽

Ankle Valgus

Purpose Posteromedial bowing of the tibia is an uncommon but recognized congenital lower extremity deformity in children that can lead to limb length discrepancy (LLD) and residual angulatory deformity. The purpose of this study is to report a series of children at a single institution with posteromedial bowing treated by lengthening. Methods A retrospective review was carried out at our institution identifying 16 patients who were treated with limb lengthening for posteromedial bowing of the tibia and followed to skeletal maturity. Projected LLD was a mean of 7.7 cm (range 5.0 cm to 14.2 cm). Three patients were treated in a staged fashion with lengthening and deformity correction at age three to four years and subsequent definitive tibial lengthening. The remaining 13 patients were treated with limb lengthening approaching adolescence using circular external fixation. Results All patients were pain free and ambulated without a limp at final follow-up. The mean final LLD was 0.3 cm short. In spite of correction of distal tibial shaft valgus in 11 of the 16 patients, eight of the 16 (50%) required later correction of persistent, symptomatic ankle valgus by either hemiepiphyseodesis (seven patients) or osteotomy (one patient). Conclusions Children with posteromedial bowing of the tibial with projected LLD over 5cm can be effectively treated with lengthening. Patients with severe valgus of more than 30° of shaft valgus and difficulty ambulating at age three years can be successfully treated with a two-stage lengthening procedure. Attention should be paid in patients with posteromedial bowing to ankle valgus. Level of Evidence IV

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Derotation of the Talus and Arthrodesis Treatment of Stages II-V Müller-Weiss Disease: Midterm Results of 36 Cases

Foot & Ankle International ◽

10.1177/1071100719829457 ◽

2019 ◽

Vol 40 (5) ◽

pp. 506-514 ◽

Cited By ~ 1

Author(s):

Chengjie Yuan ◽

Chen Wang ◽

Chao Zhang ◽

Jiazhang Huang ◽

Xu Wang ◽

...

Keyword(s):

Case Series ◽

Deformity Correction ◽

Stage Iv ◽

Staging System ◽

Functional Improvement ◽

Midterm Results ◽

Retrospective Case ◽

Level Of Evidence ◽

Metatarsal Angle

Background: Various operative procedures have been reported for the treatment of Müller-Weiss disease (MWD). This study reports the midterm operative treatment results for stages II to V MWD with derotation of the talus and arthrodesis. Methods: Thirty-four patients (36 feet) with MWD were treated by talonavicular (TN) or talonavicular-cuneiform (TNC) arthrodesis in our center from 2008 to 2015. The affected feet were staged according to the Maceira staging system (stage II: 9; stage III: 10; stage IV: 9; stage V: 8). The American Orthopaedic Foot & Ankle Society (AOFAS) midfoot scale, the visual analog scale (VAS), and relative radiologic parameters were evaluated preoperatively and also during follow-up. The mean follow-up duration was 38.2 (range, 25-113 months). Results: The final follow-up showed satisfactory outcomes. Overall, the AOFAS scores improved from 41.5 (range, 20-56) to 85.3 (range, 68-100) points ( P <.001), and the VAS score decreased from 5.7 (range, 3-8) to 0.9 (range, 0-4) points ( P <.001). The Tomeno-Méary angle decreased from −6.7 (range, −26.4 to 17.7) to 0.7 (range, −5.3 to 7) degrees ( P=.001). The calcaneal pitch angle increased from 13.7 (range, 4.1-26.2) to 22.0 (range, 13.3-28.9) degrees ( P < .001). The anteroposterior (AP) talar–first metatarsal angle decreased from −15.8 (range, −30.1 to −13.7) to −7.0 (range, −25.9 to −8.9) degrees ( P < .001), and the AP talocalcaneal angle increased from 14.7 (range, 4.7-22.3) to 22.1 (range, 13.4-29.5) degrees ( P=.005). The AP talonavicular coverage angle decreased from −27.0 (range, −40.4 to −13.3) to −7.8 degrees (range, −20.7 to −1.8) degrees ( P < .001). Conclusion: The midterm results found that the TN or TNC joint fusion could achieve a favorable clinical and radiologic outcome for patients with MWD. Even for the patients with severe deformities (stages IV-V), this treatment strategy could also achieve satisfactory deformity correction and functional improvement. Intraoperative restoration of talus rotation was the key to normal alignment of the subtalar joint/TN joint. Level of Evidence: Level IV, retrospective case series.

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