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Scandinavian Journal of Medicine &... Sep 2016
Topics: Achilles Tendon; Aponeurosis; Biomechanical Phenomena; Biomedical Research; Humans; Tendons; Ultrasonography
PubMed: 27511119
DOI: 10.1111/sms.12731 -
The Journal of Craniofacial Surgery Oct 2017The authors innovated the levator aponeurosis and Muller muscle plication reinforced with levator sheath advancement (AMPSA) for blepharoptosis correction. The orbital...
The authors innovated the levator aponeurosis and Muller muscle plication reinforced with levator sheath advancement (AMPSA) for blepharoptosis correction. The orbital septum was opened 1 mm above its fusion with the levator aponeurosis. The preaponeurotic fat was retracted and the thickened part of the levator sheath was identified. Two plication sutures were made: medial suture at the medial border of the pupil and lateral between the lateral border of the pupil and the lateral limbus. A needle with 6-0 nylon thread first bit the tarsal plate approximately 1 mm below its upper border, then bit the levator aponeurosis and the Muller muscle together at 3 to 6 mm above the upper border of the tarsal plate. The needle bit 1 to 3 mm of the thickened part of the levator sheath and the suture was tied. A total of 116 eyes were operated on using levator aponeurosis and Muller muscle plication (AMP), and 79 eyes using AMPSA. The mean follow-up period was 11.4 months. In the AMP group, the postoperative marginal reflex distance-1 (MRD-1) (3.8 ± 0.2 mm) was significantly greater than the preoperative MRD-1 (2.7 ± 0.3 mm) (P < 0.001). In the AMPSA group, the postoperative MRD-1 (3.5 ± 0.3 mm) was also significantly greater than the preoperative MRD-1 (1.7 ± 0.4 mm) (P < 0.001). The improvement in MRD-1 was greater in the AMPSA group (1.7 ± 0.4 mm) than in the AMP group (1.1 ± 0.3 mm) (P < 0.001). The difference in the MRD-1 outcome between AMPSA and AMP (0.6 mm) was obtained by advancing the thickened part of the levator sheath. AMPSA may be an effective procedure for correcting blepharoptosis.
Topics: Aponeurosis; Blepharoplasty; Blepharoptosis; Eyelids; Female; Humans; Male; Needles; Oculomotor Muscles; Orbit; Suture Techniques; Young Adult
PubMed: 28857984
DOI: 10.1097/SCS.0000000000003815 -
European Journal of Applied Physiology Jan 2019Examination of the mechanical behavior of the hamstrings when acting as antagonists provides information about loading of this muscle group and its role for joint...
INTRODUCTION
Examination of the mechanical behavior of the hamstrings when acting as antagonists provides information about loading of this muscle group and its role for joint stability during forceful quadriceps contractions. The aim of this study was to quantify biceps femoris long head fascicle length (FL), angle of pennation (PA) and distal tendon/aponeurosis strain during maximum voluntary contraction efforts of the knee extensors using real-time ultrasound.
METHODS
Fourteen participants performed passive joint movements and maximum voluntary knee extension and flexion efforts of the knee flexors at 0°, 45° and 90° of knee flexion. An ultrasound probe was used to visualize FL, PA and tendon/aponeurosis strain from the distal part of the muscle.
RESULTS
Two-way analysis of variance designs indicated that: (a) antagonist BFlh tendon/aponeurosis strain increased significantly up to 2.77 ± 1.25% relative to rest (p < 0.05). The FL increased non-significantly (2.86 ± 6.81%) while the PA was unaltered during isometric MVC efforts of the knee extensors (p > 0.05) (b) FL, PA and tendon/aponeurosis strain of the BFlh when acting as antagonist were not significantly affected by knee joint angular position (p > 0.05).
CONCLUSIONS
Antagonist hamstring function takes the form of a lengthened tendon/aponeurosis, no fascicle shortening and submaximal neural activation. Future research could examine whether exercise interventions that aim to alter tendon/aponeurosis mechanical properties of the hamstrings when acting as antagonists are beneficial for injury prevention and rehabilitation.
Topics: Aponeurosis; Humans; Isometric Contraction; Male; Muscle, Skeletal; Tendons; Ultrasonography; Young Adult
PubMed: 30284028
DOI: 10.1007/s00421-018-4000-2 -
Journal of Plastic, Reconstructive &... Jan 2023The partial-incision double-eyelid surgery remains a popular esthetic procedure in Asia, most of the previous partial-incision double-eyelid operations involved...
Small-incision, mini-dissection, orbicularis-preservation, and orbicularis-levator aponeurosis fixation technique: A modified partial-incision double-eyelid blepharoplasty.
BACKGROUND
The partial-incision double-eyelid surgery remains a popular esthetic procedure in Asia, most of the previous partial-incision double-eyelid operations involved resection of the pretarsal orbicular muscle, resulting in a depressed and firm eyelid crease. In order to create a more natural, dynamic, and durable double-eyelid crease with less visible scar and shorter postoperative recovery time, we describe a modified small-incision, mini-dissection, orbicularis-preservation, and orbicularis-levator aponeurosis fixation technique for Chinese patients.
METHODS
A total of 132 patients who underwent bilateral modified partial-incision double-eyelid surgery were retrospectively reviewed. In this technique, three 2 mm incisions were designed, the orbicularis oculi muscle was preserved and conservatively dissected to expose the levator aponeurosis, and buried suture was used to fix the orbicularis oculi muscle to levator aponeurosis. The skin and orbicularis oculi muscle were then sutured together with the levator aponeurosis.
RESULTS
With a follow-up period of more than 6 months, most of the double eyelids were natural and dynamic, and the crease was stable. The majority of the swelling faded in 2 weeks and completely faded in the first month for most patients. The scars of the small incision became invisible after 3 months of recovery. One patient (0.8%) complained of bilateral fold disappearance. Asymmetries occurred in 4.5% (6 of 132) patients. 97.7% (129 of 132) patients were satisfied with the postoperative appearance. No severe complications were reported during the follow-up period.
CONCLUSION
The modified small-incision, mini-dissection, orbicularis-preservation, and orbicularis-levator aponeurosis fixation double-eyelid blepharoplasty technique can create a more natural, dynamic, and durable double-eyelid crease with fast recovery and no visible scar or serious complications.
Topics: Humans; Blepharoplasty; Aponeurosis; Cicatrix; Retrospective Studies; Eyelids; Surgical Wound
PubMed: 36428197
DOI: 10.1016/j.bjps.2022.10.010 -
Hand Clinics Aug 2018Dupuytren contracture is a progressive disease involving collagen within the palmar fascia. When the contracture progresses to meet specific parameters, intervention is... (Review)
Review
Dupuytren contracture is a progressive disease involving collagen within the palmar fascia. When the contracture progresses to meet specific parameters, intervention is considered and includes collagenase injection, percutaneous or open fasciotomy, or palmar fasciectomy. Complications after treatment include contracture recurrence, digital nerve injury or postoperative neurapraxia, flexor tendon injury/rupture, delayed wound healing or skin necrosis, dysvascular digit/arterial injury, hematoma, and infection. Patients with severe or recurrent Dupuytren contracture are more likely to experience complications. Patient education is paramount; one must consider the patient's goals for treatment, functional requirements, time frame for recovery, and tolerance for complications when deciding about treatment.
Topics: Aponeurosis; Arteries; Clostridium histolyticum; Dupuytren Contracture; Fasciotomy; Fingers; Hematoma; Humans; Injections, Intralesional; Intraoperative Complications; Microbial Collagenase; Necrosis; Needles; Orthopedic Procedures; Peripheral Nerve Injuries; Postoperative Complications; Recurrence; Skin; Tendon Injuries; Wound Healing; Wound Infection
PubMed: 30012298
DOI: 10.1016/j.hcl.2018.03.007 -
Hand Clinics Aug 2018Despite more than a hundred years of publications on Dupuytren disease, there has been a lack of consensus on definitions and outcomes until recently. Staging and... (Review)
Review
Despite more than a hundred years of publications on Dupuytren disease, there has been a lack of consensus on definitions and outcomes until recently. Staging and classifications systems have an important historical context; however, more recently, outcomes rely on patient-reported outcomes, angular correction, and definitions of recurrence. This article reviews commonly used assessments, classifications, and staging systems for Dupuytren disease.
Topics: Adipose Tissue; Aponeurosis; Clostridium histolyticum; Disability Evaluation; Dupuytren Contracture; Fasciotomy; Humans; Microbial Collagenase; Needles; Orthopedic Procedures; Patient Reported Outcome Measures; Randomized Controlled Trials as Topic; Surgical Flaps
PubMed: 30012297
DOI: 10.1016/j.hcl.2018.03.006 -
Minerva Pediatrica Aug 2019To investigate the effect of frontal muscle aponeurosis flap suspension surgery for severe congenital ptosis in children.
BACKGROUND
To investigate the effect of frontal muscle aponeurosis flap suspension surgery for severe congenital ptosis in children.
METHODS
Recent results of 30 cases (45 eyes) of children with severe congenital ptosis were evaluated and follow-up observation was conducted.
RESULTS
One week after the surgery, the success rate was 97.7% and it was 95.5% after three months.
CONCLUSIONS
The suspension of frontal muscle aponeurosis should be the first choice for children with severe congenital ptosis for its simplicity, safety and fewer complications.
Topics: Aponeurosis; Blepharoptosis; Child; Child, Preschool; Female; Follow-Up Studies; Humans; Male; Severity of Illness Index; Surgical Flaps
PubMed: 26354415
DOI: 10.23736/S0026-4946.17.04382-1 -
Annals of Plastic Surgery Mar 2021
Topics: Aponeurosis; Blepharoptosis; Humans; Muscles
PubMed: 32756255
DOI: 10.1097/SAP.0000000000002497 -
[Zhonghua Yan Ke Za Zhi] Chinese... Sep 2018To observe pathological features of levator aponeurosis in patients with involutional ptosis. A prospective study. Twenty-nine consecutive patients with involutional...
To observe pathological features of levator aponeurosis in patients with involutional ptosis. A prospective study. Twenty-nine consecutive patients with involutional blepharoptosis who underwent levator aponeurosis advancement surgery for blepharoptosis correction were enrolled at Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University from 2007 to 2013. Twenty-nine specimens of the levator aponeurosis were obtained during surgery. Hematoxylin-eosin staining, Van Gieson staining, Masson staining, immunohistochemistry and transmission electron microscope observations were performed to observe the features of levator aponeurosis. Twelve normal specimens of fresh levator aponeurosis were obtained from Beijign Tongren Eyebank as control group. Mann-Whitney's -test and multiple linear regression were used for statistical analysis. Among the enrolled cases, there were 19 males and 10 females;14 cases were diagnosed with moderate ptosis and 15 cases with severe ptosis;9 cases involved with both eyes, 9 cases with right eyes, and 11 cases with left eyes. The mean age was 59 years. Among the 12 normal cases, there were 5 males and 7 females. The mean age was 56 years. Histopathological observation showed fascicle disruption(+++, ++, + 24, 2, 3 . 0, -5.666, 0.001), scarcity of cross-striations(+++, ++, + 23, 2, 4 . 0, -5.582,0.001), collagen fibers hyperplasia(+++, ++, + 15, 10, 4 . 0, -5.223,0.001), fatty infiltration(+++, ++, + 24, 5, 0 . 0, -5.671,0.001), and a decrease of myoglobin expression(+++,++,+,- 9, 1, 1, 15 . 8, 1, 0, 0, -3.004, 0.005) in levator aponeurosis. Transmission electron microscope recorded presence of collagen fiber hyperplasia and cellular degeneration including mitochondria swelling and hyperplasia, vacuoles, lipid droplets, nucleus pycnosis, chromosome condensation, disintegrated organelles, myeloid body and autophagy. Multivariate linear regression showed a correlation between fat infiltration and age(β=0.425, 0.043) while suspicious related clinical features as independent variables and observed histopathological features as dependent variables. The levator aponeurosis appears to be involved with muscle fiber degeneration, collagen fiber hyperplasia and cellular degeneration in patients with involutional blepharoptosis. .
Topics: Aponeurosis; Blepharoplasty; Blepharoptosis; Eyelids; Female; Humans; Male; Middle Aged; Oculomotor Muscles; Prospective Studies
PubMed: 30220182
DOI: 10.3760/cma.j.issn.0412-4081.2018.09.007 -
International Journal of Sports Medicine Jun 2024Biceps femoris long head (BF) aponeurosis size was compared between legs with and without prior hamstring strain injury (HSI) using within-group (injured vs. uninjured...
Biceps femoris long head (BF) aponeurosis size was compared between legs with and without prior hamstring strain injury (HSI) using within-group (injured vs. uninjured legs of previous unilateral HSI athletes) and between-group (previously injured legs of HSI athletes vs. legs of No prior HSI athletes) approaches. Currently healthy competitive male athletes with Prior HSI history (=23; ≥1 verified BF injury; including a sub-group with unilateral HSI history; most recent HSI 1.6 ± 1.2 years ago) and pair-matched athletes with No prior HSI history (=23) were MRI scanned. Anonymised axial images were manually segmented to quantify BF aponeurosis and muscle size. Prior unilateral HSI athletes' BF aponeurosis maximum width, aponeurosis area, and aponeurosis:muscle area ratio was 14.0-19.6% smaller in previously injured vs. contralateral uninjured legs (paired t-test, 0.008≤≤0.044). BF aponeurosis maximum width and area were also 9.4-16.5% smaller in previously injured legs (=28) from prior HSI athletes vs. legs (=46) of No prior HSI athletes (unpaired t-test, 0.001≤≤0.044). BF aponeurosis size was smaller in legs with Prior HSI vs. those without prior HSI. These findings suggest BF aponeurosis size, especially maximum width, could be a potential cause or consequence of HSI, with prospective evidence needed to support or refute these possibilities.
PubMed: 38897227
DOI: 10.1055/a-2348-2605