scholarly journals The Hallux Metatarsophalangeal Capsule: An Anatomic Study with Respect to Percutaneous Hallux Valgus Correction

2019 ◽  
Vol 4 (4) ◽  
pp. 2473011419S0001
Author(s):  
Kenneth M. Chin ◽  
Nicholas S. Richardson ◽  
John T. Campbell ◽  
Clifford L. Jeng ◽  
Matthew W. Christian ◽  
...  

Category: Bunion Introduction/Purpose: Minimally invasive surgery for the treatment of hallux valgus deformities has become increasingly popular. Knowledge of the location of the hallux MTP proximal capsular origin on the metatarsal neck is critical for surgeons in planning and executing extra-capsular 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, five female and five male. The mean distances from the central hallux metatarsal head to the MTP capsular origin was 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.

2021 ◽  
pp. 107110072110272
Author(s):  
Kenneth M. Chin ◽  
Nicholas S. Richardson ◽  
John T. Campbell ◽  
Clifford L. Jeng ◽  
Matthew W. Christian ◽  
...  

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 orthopedic surgeons when planning and performing minimally invasive distal metatarsal osteotomies for the correction of hallux valgus. Type of Study: Cadaveric Study.


2020 ◽  
Vol 25 (1) ◽  
pp. 79-95 ◽  
Author(s):  
Jorge Javier Del Vecchio ◽  
Mauricio Esteban Ghioldi

2020 ◽  
Vol 134 (2) ◽  
pp. 145-149
Author(s):  
M Casale ◽  
A Costantino ◽  
L Sabatino ◽  
A Luchena ◽  
A Moffa ◽  
...  

AbstractObjectiveThis paper aims to report our experience with a minimally invasive surgical procedure for the treatment of chronic rhinosinusitis with nasal polyps, performed in a day-surgery setting under local anaesthesia.MethodsA retrospective study of 30 patients with chronic rhinosinusitis with nasal polyps was conducted. Sino-Nasal Outcome Test 22 and modified Lund–Kennedy scores were collected. Intra- and post-operative pain was evaluated using a 10-point visual analogue scale.ResultsThe mean Sino-Nasal Outcome Test 22 score decreased from 41.8 ± 15.8 pre-operatively to 13.3 ± 9.5 post-operatively (p < 0.001). Accordingly, the mean endoscopic score decreased from 6.8 ± 1.8 to 0.2 ± 0.7 (p < 0.001). The mean intra-operative pain score was 2.9 ± 3.2, and 29 patients (96.7 per cent) reported no pain in the post-operative period (visual analogue scale score = 0).ConclusionOur study confirms that minimally invasive surgery represents a safe, repeatable procedure that results in remarkable subjective and objective improvement, without intra- and post-operative pain or discomfort.


2010 ◽  
Vol 28 (3) ◽  
pp. E9 ◽  
Author(s):  
Michael Y. Wang ◽  
Praveen V. Mummaneni

Object Adult degenerative scoliosis can be a cause of intractable pain, decreased mobility, and reduced quality of life. Surgical correction of this problem frequently leads to substantial clinical improvement, but advanced age, medical comorbidities, osteoporosis, and the rigidity of the spine result in high surgical complication rates. Minimally invasive surgery is being applied to this patient population in an effort to reduce the high complication rates associated with adult deformity surgery. Methods A retrospective study of 23 patients was undertaken to assess the clinical and radiographic results with minimally invasive surgery for adult thoracolumbar deformity surgery. All patients underwent a lateral interbody fusion followed by posterior percutaneous screw fixation and possible minimally invasive surgical transforaminal lumbar interbody fusion if fusion near the lumbosacral junction was necessary. A mean of 3.7 intersegmental levels were treated (range 2–7 levels). The mean follow-up was 13.4 months. Results The mean preoperative Cobb angle was 31.4°, and it was corrected to 11.5° at follow-up. The mean blood loss was 477 ml, and the operative time was 401 minutes. The mean visual analog scale score improvement for axial pain was 3.96. Clear evidence of fusion was seen on radiographs at 84 of 86 treated levels, with no interbody pseudarthroses. Complications included 2 returns to the operating room, one for CSF leakage and the other for hardware pullout. There were no wound infections, pneumonia, deep venous thrombosis, or new neurological deficits. However, of all patients, 30.4% experienced new thigh numbness, dysesthesias, pain, or weakness, and in one patient these new symptoms were persistent. Conclusions The minimally invasive surgical treatment of adult deformities is a promising method for reducing surgical morbidity. Numerous challenges exist, as the surgical technique does not yet allow for all correction maneuvers used in open surgery. However, as the techniques are advanced, the applicability of minimally invasive surgery for this population will likely be expanded and will afford the opportunity for reduced complications.


10.15417/633 ◽  
2017 ◽  
Vol 82 (1) ◽  
pp. 19 ◽  
Author(s):  
Jorge Javier Del Vecchio ◽  
Mauricio Esteban Ghioldi ◽  
Nicolás Raimondi

<p><strong>Objetivo</strong></p><p><strong></strong>El objetivo del presente estudio, fue analizar los resultados radiológicos de una osteotomía en tejadillo (“Chevron”) con técnica MIS (<em>Minimally invasive surgery</em>) del primer metatarsiano en una población uniforme de pacientes (hallux valgus moderado).</p><p><strong>Material y Métodos</strong></p><p><strong></strong>Entre octubre del año 2013 y noviembre del año 2014, se realizó el tratamiento quirúrgico del hallux valgus mediante una osteotomía en tejadillo (“Chevron”) con técnica MIS del primer metatarsiano en 24 pies correspondientes a 21 pacientes. Todos los pacientes presentaban diagnóstico de hallux valgus moderado.</p><p><strong>Resultados</strong></p><p><strong></strong>El ángulo intermetatarsiano entre primero y segundo metatarsiano preoperatorio promedio fue de 12,46°  (Rango: 11 a  15°; Desvío estándar o DE 1,03). En el postoperatorio se obtuvo el siguiente valor promedio: 8,13° (Rango: 5 a 10°; DE 1,16). La corrección angular fue de 4,33° promedio. El ángulo de hallux valgus preoperatorio promedio fue de  33,96° (Rango: 20 a 40°; DE 4,93). En el postoperatorio, el ángulo metatarsofalángico fue de 8,16° promedio, con rango entre 3° y 15° y con un DE 2,86. La mejoría promedio del ángulo MTF fue de 25,86°.</p><p><strong>Discusión</strong></p><p><strong></strong>La corrección radiológica obtenida mediante la técnica mínimamente invasiva de la osteotomía en “tejadillo” confirma un seguro y efectivo procedimiento  para el tratamiento del hallux valgus moderado, con correcciones angulares satisfactorias a mediano plazo. El mencionado procedimiento remeda de manera fidedigna la técnica quirúrgica abierta con todas sus virtudes conocidas y no fue encontrado estudio equivalente en la bibliografía.</p>


Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
W. Andrew Mould ◽  
John Muschelli ◽  
Nichol McBee ◽  
Karen Lane ◽  
Mario Zuccarello ◽  
...  

Introduction: Minimally invasive surgery plus alteplase has been shown to effectively reduce the volume of intracerebral hemorrhage in patients with supratentorial bleeds. Removal of these catheters is a unique timepoint when bleeding may restart due to mechanical forces and/or the presence of alteplase/plasmin in the brain. We hypothesized that surgically-treated patients in the MISTIE III trial who had increased bleeding post catheter removal would have shorter periods of time between last dose and catheter removal and be less likely to have lobar ICH. Methods: MISTIE III is a prospective, randomized trial testing the efficacy of minimally invasive surgery plus alteplase for hematoma removal compared to medical management. We analyzed 107 surgically-treated patients. Semi-automated threshold based segmentation of the ICH volumes for all time points were performed using OsiriX. Results: Of the 107 surgical patients, 16 experienced an increase in ICH volume >10% between T1, the scan taken 24 hours prior to cath removal, and T2, the scan taken 24 hours post catheter removal. Mean percent difference between T1 and T2 was 37.5% for those that expanded versus those that did not, -17.4% (p<0.001) with an absolute difference in ICH volume of 3.0 cc and -2.2 cc (p<0.001). The mean residual volume at T2 for both groups was similar at 12.84 cc and 12.71 cc, respectively (p=0.96). Time from last dose to catheter removal in days was 1.27 for those that expanded and 1.44 for those that did not (p=0.09). Furthermore, 14/16 (87.5%) patients with expansion had ICH’s located in deep structures compared to 55/91 (60.4%) of patients that did not expand (p<0.01). Conclusion: Overall, incidence of bleeding following ICH catheter removal in MISTIE III was low. When bleeding was seen, it was more often found in patients with deep ICH locations and whose catheters were removed sooner after the last dose of alteplase.


2016 ◽  
pp. 81-81
Author(s):  
Donato Bardelli ◽  
Andrea Losana ◽  
Claudia Pesce ◽  
Enrico Balboni ◽  
Charlie Jowett

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