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Tendon transfers

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https://www.readbyqxmd.com/read/29454275/long-term-follow-up-of-patients-undergoing-tibialis-posterior-transfer-is-acquired-pes-planus-a-complication
#1
Mira Pecheva, Adam Devany, Basil Nourallah, Steven Cutts, Chandra Pasapula
In this retrospective study, a series of 10 elective patients treated with transfer of the tibialis posterior (TP) tendon for pes cavus and drop foot are described. Since TP transfer completely subtracts the role of this tendon, this cohort of patients provides an opportunity to examine the consequences of tibialis posterior (TP) deficiency. After a mean follow up period of 44.7 months, only one patient showed evidence of strain in the spring ligament but none of the patients in this series developed clinical or radiological evidence of planovalgus deformity...
November 22, 2017: Foot
https://www.readbyqxmd.com/read/29439365/adaptive-motor-cortex-plasticity-following-grip-reconstruction-in-individuals-with-tetraplegia
#2
Lina Bunketorp Käll, Robert J Cooper, Johanna Wangdell, Jan Fridén, Malin Björnsdotter
BACKGROUND: Tendon transfer is a surgical technique for restoring upper limb motor control in patients with cervical spinal cord injuries (SCI), and offers a rare window into cortical neuroplasticity following regained arm and hand function. OBJECTIVE: Here, we aimed to examine neuroplasticity mechanisms related to re-established voluntary motor control of thumb flexion following tendon transfer. METHODS: We used functional Magnetic Resonance Imaging (fMRI) to test the hypothesis that restored limb control following tendon transfer is mediated by activation of that limb's area of the primary motor cortex...
2018: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29430395/anterior-capsule-reconstruction-technique-with-an-acellular-dermal-allograft
#3
Adam Kwapisz, John M Tokish
An irreparable subscapularis may have a debilitating influence on glenohumeral joint biomechanics. Traditional treatment approaches are focused on tendon transfers, among which the most popular are pectoralis major and latissimus dorsi transfers. However, these techniques present significant retear rates, possible nerve injuries, and altered biomechanics. Other techniques like tibialis anterior or iliotibial autograft grafting also have many reported failures. We describe an all-arthroscopic anterior capsule reconstruction technique with an acellular dermal graft...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29427745/enhanced-tendon-to-bone-repair-through-adhesive-films
#4
Stephen W Linderman, Mikhail Golman, Thomas R Gardner, Victor Birman, William N Levine, Guy M Genin, Stavros Thomopoulos
Tendon-to-bone surgical repairs have unacceptably high failure rates, possibly due to their inability to recreate the load transfer mechanisms of the native enthesis. Instead of distributing load across a wide attachment footprint area, surgical repairs concentrate shear stress on a small number of suture anchor points. This motivates development of technologies that distribute shear stresses away from suture anchors and across the enthesis footprint. Here, we present predictions and proof-of-concept experiments showing that mechanically-optimized adhesive films can mimic the natural load transfer mechanisms of the healthy attachment and increase the load tolerance of a repair...
February 7, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29421351/age-related-remodelling-of-the-myotendinous-junction-in-the-mouse-soleus-muscle
#5
Kathrine B Nielsen, Navneet N Lal, Philip W Sheard
The age-related loss of muscle mass and function predominantly affect muscles of the lower limbs and have largely been associated with decline in muscle fibre size and number, although the exact mechanisms underlying these losses are poorly understood. In addition, consistent reports that the loss of muscle strength exceeds that which can be explained by declines in muscle mass has widened the search for causes of sarcopenia to include supporting tissues such as the extracellular matrix and tendons. Although the changes to both muscle and tendon with age are well characterised, little work has focused on the interface between these two tissues, the myotendinous junction (MTJ)...
January 30, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29421069/technique-of-dynamic-flexor-digitorum-superficialis-transfer-to-lateral-bands-for-proximal-interphalangeal-joint-deformity-correction-in-severe-dupuytren-disease
#6
REVIEW
Michael J Schreck, Hayden S Holbrook, L Andrew Koman
Pseudo-boutonniere deformity is an uncommon complication from long-standing proximal interphalangeal (PIP) joint contracture in Dupuytren disease. Prolonged flexion contracture of the PIP joint can lead to central slip attenuation and resultant imbalances in the extensor mechanism. We present a technique of flexor digitorum superficialis (FDS) tendon transfer to the lateral bands to correct pseudo-boutonniere deformity at the time of palmar fasciectomy for the treatment of Dupuytren disease. The FDS tendon is transferred from volar to dorsal through the lumbrical canal and sutured into the dorsally mobilized lateral bands...
February 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29417158/operative-treatment-algorithm-for-foot-deformities-in-charcot-marie-tooth-disease
#7
REVIEW
J W K Louwerens
The present article presents a short summary concerning the pathomechanisms and clinical presentation of foot deformities in Charcot-Marie-Tooth syndrome. Furthermore, a classification system is introduced and based on a recently performed review of the literature an operative treatment algorithm is provided. The operative technique of the following surgical procedures is described in more detail: 1. dorsiflexion osteotomy at the base of the 1st metatarsus, 2. dorsiflexion osteotomy at the base of a lesser metatarsal bone, 3...
February 7, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29413774/effectiveness-of-the-cobb-stainsby-excision-arthroplasty
#8
A H Matthews, N A Jagodzinski, M Westwood, J E Metcalfe, K T Trimble
BACKGROUND: Dislocated metatarsophalangeal joints from clawed or hammer toes can be a disabling consequence of several conditions. The Cobb-Stainsby forefoot arthroplasty combines partial phalangectomy (Stainsby) with extensor tendon transfer to the metatarsal head (Cobb). We present a retrospective, three surgeon case series of 215 toes in 126 patients. METHODS: Early results and complications were gathered from the medical charts of 126 patients who met the inclusion criteria...
February 2018: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29411900/in-vivo-comparison-of-medialized-dome-and-anatomic-patellofemoral-geometries-using-subject-specific-computational-modeling
#9
Azhar A Ali, Erin M Mannen, Paul J Rullkoetter, Kevin B Shelburne
Successful outcome following total knee arthroplasty (TKA) with patella resurfacing is partly determined by the restoration of patellofemoral (PF) function and recovery of the quadriceps mechanism. The current study compared two patellar TKA geometries (medialized dome and anatomic) to determine their impact on PF mechanics and quadriceps function. In-vivo, subject-specific patellar mechanics were evaluated using a sequential experimental and modeling approach. First, stereo radiography, marker-based motion capture, and force plate data were collected for TKA patients (10 dome, 10 anatomic) performing a knee extension and lunge...
February 7, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29411320/the-role-of-tendon-transfers-for-irreparable-rotator-cuff-tears
#10
REVIEW
Nicholas J Clark, Bassem T Elhassan
PURPOSE OF REVIEW: This review aims to describe the tendon transfer options for treating irreparable rotator cuff tears (RCTs). Options for transfer include latissimus dorsi and lower trapezius transfers for posterior-superior RCTs and pectoralis major and latissimus dorsi transfer for anterior-superior RCTs. RECENT FINDINGS: While the latissimus dorsi tendon transfer has historically been performed for posterosuperior RCTs, the lower trapezius transfer is a more anatomic option and has demonstrated promising results in recent studies...
February 6, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29409420/failed-reconstruction-of-the-extensor-pollicis-longus-in-a-patient-with-a-major-variation-of-the-extensor-indicis-proprius-tendon-a-case-report
#11
Gen Matsumae, Makoto Motomiya, Norimasa Iwasaki
Tendon transfer with extensor indicis proprius (EIP) has been performed widely for reconstructing ruptures of the extensor pollicis longus because of its simplicity and clinical outcome. We experienced a rerupture of the extensor pollicis longus restored by incorrect tendon transfer because of a major unrecognized variation in the anatomy of the EIP. Surgeons should perform such transfer with a detailed knowledge of the possible anatomical variations to avoid such serious complications.
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409413/-silent-ruptures-of-the-flexor-digitorum-profundus-of-the-little-finger-due-to-pisotriquetral-arthroses
#12
Kazufumi Sano, Yosuke Akiyama, Satoru Ozeki
Asymptomatic pisotriquetral arthroses caused ruptures of the flexor digitorum profundus tendon of the little finger in 2 elderly patients. Ruptures occurred with unnoticeable onset, and bilateral ruptures separately occurred with interval of several years in one patient. The tendon was ruptured in zone IV with perforation of the gliding floor through which the degenerative pisiform was visible. The gliding floor was repaired followed with excision of the pisiform, and the ruptured tendon was then transferred to the profundus tendon of the ring finger...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409217/surgical-management-of-chronic-achilles-tendon-ruptures-using-less-invasive-techniques
#13
Nicola Maffulli, Francesco Oliva, Gayle D Maffulli, Angelo Del Buono, Nikolaos Gougoulias
BACKGROUND: Surgical management of chronic Tendo Achillis (TA) ruptures usually requires tendon grafting procedures. Several techniques have been described. We examined the outcome of three different less invasive (incisions length less than 3 cm) tendon transfer techniques in the management of patients with a chronic rupture of the TA. METHODS: Of 62 patients (39 males and 23 females; mean age 44.8 years; range 29.3-62 years) with chronic TA ruptures managed operatively, 21 patients had a ≥6cm gap and underwent free ipsilateral semitendinosus (ST) graft (21 patients), whereas patients with smaller gaps had either ipsilateral peroneus brevis (PB) (20 patients) or ipsilateral flexor hallucis longus (FHL) transfer (21 patients)...
February 16, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29409187/flexor-hallucis-longus-transfer-versus-turndown-flaps-augmented-with-flexor-hallucis-longus-transfer-in-the-repair-of-chronic-achilles-tendon-rupture
#14
Don Koh, Jeremy Lim, Jerry Y Chen, Inderjeet R Singh, Kevin Koo
BACKGROUND: Repairs of chronic Achilles tendon ruptures are technically challenging due to large defects after scar excision. Multiple techniques for repair have been proposed but little consensus on best practice established. This study aims to compare flexor hallucis longus (FHL) transfers versus turndown flaps augmented by FHL transfers. METHODS: Between 2005 and 2015, 49 unilateral repairs of chronic Achilles tendon ruptures were performed. We retrospectively compared the outcomes of 20 patients who underwent FHL transfer with 19 patients who underwent turndown flaps augmented with FHL transfer before surgery and at three time points after surgery (three, six and twelve months)...
November 10, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29409185/reconstruction-of-the-lateral-ankle-ligaments-using-the-anterior-half-of-peroneus-longus-tendon-graft
#15
Yaning Sun, Huijuan Wang, Yuchao Tang, Haitao Zhao, Shiji Qin, Fengqi Zhang
BACKGROUND: This study aimed to report our institution's experience in the treatment of chronic lateral ankle instability using the anterior half of the peroneus longus tendon (AHPLT) to reconstruct the lateral ligament. METHODS: This retrospective study included 32 consecutive patients with chronic lateral ankle instability who underwent surgery from January 2013 to December 2014. All patients had failed to resolve with conservative treatment. A total of 32 ankles underwent AHPLT transfer...
November 23, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29409181/technique-tip-edl-to-ehl-double-loop-transfer-for-extensor-hallucis-longus-reconstruction
#16
Gonzalo F Bastías, Natalio Cuchacovich, Adam Schiff, Giovanni Carcuro, Manuel J Pellegrini
BACKGROUND: Extensor hallucis longus (EHL) tendon injuries often occur in the setting of lacerations to the dorsum of the foot. End-to-end repair is advocated in acute lacerations, or in chronic cases when the tendon edges are suitable for tension free repair. Reconstruction with allograft or autograft is advocated for cases not amenable to a primary direct repair. This is often seen in cases with tendon retraction and more commonly in the chronic setting. In many countries the use of allograft is very limited or unavailable making reconstruction with autograft and tendon transfers the primary choice of treatment...
December 6, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29409178/outcomes-of-flexor-digitorum-longus-fdl-tendon-transfer-in-the-treatment-of-achilles-tendon-disorders
#17
Cesar de Cesar Netto, Apisan Chinanuvathana, Lucas Furtado da Fonseca, Eric J Dein, Eric W Tan, Lew Charles Schon
BACKGROUND: In patients with chronic Achilles tendon disorders, Achilles tendon debridement can be supplemented with a tendon transfer, with the flexor hallucis longus tendon (FHL) transfer representing the most common used technique. Our study describes clinical and functional results of patients treated with flexor digitorum longus (FDL) tendon transfer in the treatment of patients with chronic Achilles tendon disorders. METHODS: Retrospective study of prospectively collected data of thirteen patients (15 feet) that underwent FDL tendon transfer as part of the treatment of chronic Achilles tendon disorders...
December 19, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29405887/arthroscopic-coracoclavicular-ligament-reconstruction-using-a-synthetic-polycaprolactone-based-polyurethane-urea-tendon-graft-a-report-of-5-cases
#18
Juha O Ranne, Terho U Kainonen, Lasse L Lempainen, Jussi A Kosola, Sami A Kajander, Pekka T Niemi
BACKGROUND: Several techniques have been introduced to treat acromioclavicular (AC) separation using the semitendinosus tendon as a graft for coracoclavicular (CC) ligament reconstruction. However, the tendon may have been used previously or the patient may not want it harvested. Hence, synthetic tendon transfers have become increasingly popular. METHODS: Five patients with chronic AC separations were treated. A synthetic polyurethane urea tendon graft (Artelon Tissue Reinforcement [ATR]) was chosen for its ability to partially transform into connective tissue...
February 1, 2018: Surgical Innovation
https://www.readbyqxmd.com/read/29399472/arthroscopic-transfer-of-the-subscapularis-tendon-for-treatment-of-a-reverse-hill-sachs-lesion
#19
Brian J Kelly, Larry D Field
Posterior shoulder instability occurs less often than anterior shoulder instability but is increasingly recognized as a relatively common condition. The reverse Hill-Sachs lesion is present in some patients with posterior instability and is best described as an impaction fracture of the anterior humeral head. These reverse Hill-Sachs lesions can predispose the patient to recurrent instability events and may need to be addressed directly at the time of surgery. Multiple open and arthroscopic procedures have been described to transfer bone or soft tissue structures into this reverse Hill-Sachs defect...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29399464/split-pectoralis-major-transfer-for-chronic-medial-scapular-winging
#20
W Stephen Choate, Adam Kwapisz, John M Tokish
Scapular winging can be a significant source of chronic pain, weakness, and disability of the shoulder. Isolated serratus anterior palsy from long thoracic nerve injury, which is the most common cause of this condition, produces prominent winging and medial malpositioning of the inferior angle of the scapula. In the case of persistent symptoms despite conservative care, treatment options primarily include scapulothoracic fusion and pectoralis major transfer. Outcomes of scapulothoracic fusion are notable for a high complication rate and limited functional improvements...
October 2017: Arthroscopy Techniques
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