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Minimally invasive surgey for hallux valgus

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  #1  
Old 12th December 2012, 03:12 PM
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Default Minimally invasive surgey for hallux valgus

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Minimally invasive distal linear metatarsal osteotomy for correction of hallux valgus: a preliminary study of clinical outcome and analytical radiographic results via a mapping system.
Angthong C, Yoshimura I, Kanazawa K, Hagio T, Ida T, Naito M.
Arch Orthop Trauma Surg. 2012 Dec 8

Quote:
PURPOSES:
To date, actual results of a minimally invasive distal linear metatarsal osteotomy (DLMO) via more explicit radiographic delineation are poorly understood and radiographic findings and clinical results have not been systematically correlated. Purposes of this study were (1) to evaluate the effectiveness of DLMO using a precise radiographic mapping system; and (2) to determine the relationship between radiographic outcomes and clinical results.

MATERIALS AND METHODS:
In 2008-2011, DLMO was performed in 30 patients (36 feet) who had reducible symptomatic hallux valgus. Clinical data were assessed using American Orthopaedic Foot and Ankle Society (AOFAS) score. Radiographs were reviewed at preoperative and final follow-up for delineations of first ray construct, hallux valgus angle (HVA), intermetatarsal angle (IMA), distal metatarsal articular angle, and other radiographic profiles. Correlation between postoperative AOFAS score and degree of malalignment was also analyzed.

RESULTS:
A total of 36 feet had predominantly moderate hallux valgus (26 feet with HVA: 21-39°; 23 feet with IMA: 12-17°). Mean preoperative and postoperative AOFAS scores were 70.2 ± 11.3 and 95 ± 6.4, respectively (p < 0.001). Mapping system revealed improvements of first ray construct deformity (p < 0.05). Significant reductions in all angular measurements were observed at final follow-up period (p < 0.001) and correlated significantly with changes in AOFAS score (p < 0.001). Nine feet (25 %) were observed with recurrence of deformity which showed HVA >15°. Significant sesamoid lateralization was observed (p < 0.05). Twenty-four feet (66.7 %) showing overall sagittal malunions were found with significant plantar angulation (p = 0.026) and non-significant plantar displacement compared with preoperative reference (p = 0.43). These radiographic abnormalities were not related to clinical outcomes including postoperative AOFAS scores (p > 0.05).

CONCLUSION:
DLMO is an acceptable procedure to correct reducible hallux valgus in most patients with moderate level of severity. Sagittal malunion, recurrence, and sesamoid lateralization are possibly radiographic abnormalities but are not associated with clinical impairments.
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Old 12th December 2012, 04:41 PM
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Default Re: Minimally invasive surgey for hallux valgus

Related threads:
Other threads tagged with : bunions, hav surgery and minimally invasive surgery
Is minimal incision surgery (MIS) making a comeback?
Minimally invasive procedure for metatarsal osteotomy
Percutaneous minimally invasive surgery for HV
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Old 5th January 2013, 07:15 AM
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Default Re: Minimally invasive surgey for hallux valgus

Modified Minimal Incision Subcapital Osteotomy for Hallux Valgus Correction
Andrea Scala, Domenico Vendettuoli
Foot Ankle Spec January 4, 2013
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The potential advantages of minimal incision surgery for hallux valgus (HV) correction are the following: reduced surgical exposure, diminished soft-tissue stripping, and less blood supply impairment. These advantages imply fewer complications. We retrospectively reviewed patients who were consecutively treated with a modified minimally invasive osteotomy from January 2006 until December 2009 for HV deformity. We radiographically assessed the HV angle, 1-2 intermetatarsal (IM) angle, and tibial sesamoid position. Clinical outcomes were determined using the American Orthopaedic Foot and Ankle Society Hallux Metatarsophalangeal Interphalangeal (AOFAS HMI) Clinical Rating Scale. A paired Student’s t test was used to determine significance, with P < .01. There were 126 patients (146 feet) with an average age of 52.6 years and an average postoperative follow-up of 29.1 months. Preoperatively, the average HV angle was 32.3°, and postoperatively, it was 4.5° (P < .01). The preoperative average IM angle was 14.4°, whereas postoperatively, it was 4.8° (P < .01). The average tibial sesamoid position was 6.3 preoperatively and 2.5 postoperatively (P < .01). The average AOFAS HMI score was 54.6 preoperatively and 85.3 postoperatively (P < .01). There were 15 postoperative complications (10.3%) that included hallux varus, painful hardware, and delayed union. The results are comparable with those of traditional open techniques, with the additional advantages of a minimally invasive procedure.
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Old 7th March 2013, 06:28 PM
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Default Re: Minimally invasive surgey for hallux valgus

Midterm Results and Complications After Minimally Invasive Distal Metatarsal Osteotomy for Treatment of Hallux Valgus.
Iannò B, Familiari F, De Gori M, Galasso O, Ranuccio F, Gasparini G.
Foot Ankle Int. 2013 Mar 5.
Quote:
BACKGROUND:
Minimally invasive distal metatarsal osteotomy (MIDMO) is a common technique used to correct the hallux valgus deformity, but controversy remains regarding the expected outcomes of this surgery.

METHODS:
Seventy-two patients (85 feet) suffering from hallux valgus underwent MIDMO with a modified Bösch technique. Patients were prospectively evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) hallux score, and the AOFAS recovery rate was calculated. Before surgery and at follow-up, the hallux valgus (HVA), intermetatarsal (IMA), and distal metatarsal articular (DMAA) angles were measured, and the severity of disease was categorized according to the preoperative HVA. The tibial sesamoid position and articular congruence were evaluated. Postoperative complications were noted.

RESULTS:
After an average follow-up of 73.3 ± 38.1 months, the total AOFAS score improved from 47.6 ± 13.3 to 87.3 ± 11.5 (P < .001). The HVA decreased from 34.7 ± 8.2 to 14.8 ± 7.8 degrees, the IMA from 14.7 ± 4 to 6.6 ± 3.6 degrees, and the DMAA from 20.9 ± 9.8 to 9 ± 6.6 degrees (P < .001 for all). Postoperative improvement in AOFAS was inversely related to the preoperative severity of disease (P < .001, β = -.378). Sixteen (18.8%) deformity recurrences were noted, 9 of which were observed in patients with preoperative HVA more than 40 degrees. Worse preoperative congruence of the metatarsophalangeal joint and tibial sesamoid position correlated with a higher rate of recurrence of the disease after surgery (P = .001, β = -.353 and P < .001, β = .427, respectively).

CONCLUSIONS:
Satisfactory clinical and radiological results can be expected after MIDMO, but caution should be exercised when using this technique because of the likelihood of possible complications (29.4% overall complication rate). Predictors of surgical outcomes can be used to select the best candidates for this surgery.
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Old 30th August 2013, 04:35 PM
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Default Re: Minimally invasive surgey for hallux valgus

Minimally invasive hallux valgus surgery: a critical review of the evidence
Hans-Joerg Trnka, Sabine Krenn, Reinhard Schuh
International Orthopaedics; August 2013
Quote:
This systematic review aims to illustrate the published results of “minimally invasive” procedures for correction of hallux valgus. Based on former systematic reviews on that topic, the literature search was organised by two independent investigators. MEDLINE was systematically searched for available studies. The keywords used were “hallux valgus”, “bunion”, “percutaneous surgery”, “minimally invasive surgery”, “arthroscopy”, “Bosch” and “SERI”. Studies were assessed using the level of evidence rating. A total of 21 papers were included in this review. These studies described a total of 1,750 patients with 2,195 instances of percutaneous, minimally invasive or arthroscopic hallux valgus surgery. Clinical reports of results after minimally invasive hallux valgus surgery at meetings are common. Published results in peer-reviewed journals are less common and the majority of papers are level IV studies according to the level of evidence ratings. We found one level II and three level III studies. Reported complications seem to be less than one may see in one’s own clinical practice. This possible bias may be related to the fact that most studies are published by centres performing primarily minimally invasive hallux valgus surgery.
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Old 14th September 2013, 01:28 AM
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Default Re: Minimally invasive surgey for hallux valgus

Bösch technique for hallux valgus surgery in a tropical setting
Essoh J.B. Sié, Aka D. Kacou, A. Traoré, C. Mobiot, Y. Lambin
Journal of Clinical Orthopaedics and Trauma; Available online 6 September 2013
Quote:
Objectives
To evaluate the early clinical and radiological results using the Bösch technique to treat hallux valgus.

Material and methods
We reviewed retrospectively four patients with 6 feet undergoing the Bösch technique for mild and moderate hallux valgus from 2009 to 2012 with an average follow-up of 10.8 months. All patients complained of pain around the first metatarsophalangeal joint. They had cosmetic concerns, and difficulty in wearing shoes. At final follow-up patients were asked about the improvement of pain, cosmetic appearance of the foot, problems with wearing shoes, the ability to walk, and their satisfaction with the operation. Complications encountered were also recorded. The radiographic evaluation considered osteotomy site union, the hallux valgus angle, and the intermetatarsal angle.

Results
All patients complained of mild or no pain. They had a satisfactory cosmetic result, wore normal shoes without problems with no limitation of walking ability. They were satisfied with the procedure. One case of superficial infection was noticed. All osteotomies healed primarily within three months. The average hallux valgus angle improved from 32.7° preoperatively to 14.8° at final follow-up and the average intermetatarsal angle from 17.5° to 9.2°.

Conclusion
The Bösch technique is a cost effective procedure that yields good clinical and radiological results while correcting mild and moderate symptomatic hallux valgus with reduced risk of surgery related complications.
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Old 24th January 2014, 03:53 PM
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Default Re: Minimally invasive surgey for hallux valgus

Sheldon Nadal D.P.M. lectures on minimally invasive bunion surgery at the World Congress of Podiatry in Rome, Italy in November of 2013.

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