SEARCH · Search PubMed

Results for “Tenotomy”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

SourceResearch connectionFrom yearThrough year

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 163 records · Page 9Linked to original sources

PubMed1980

Late results of superior oblique muscle tenotomy in true Brown's syndrome.

We re-assessed nine patients (aged 2 to 28 years) in whom true Brown's syndrome had been diagnosed and superior oblique muscle tenotomy performed. The postoperative period ranged from three to 12 years. The final results were divided into three groups: (1) Patients with partial residual Brown's syndrome postoperatively who gradually improved spontaneously over several years, with one exception. (2) Patients who had minimal or moderate superior oblique muscle paresis, secondary overaction of the homolateral inferior oblique muscle, and excellent binocular single vision postoperatively who improved spontaneously. In Groups 1 and 2, the study showed that the long-term results are better than those immediately after surgery, and the surgeon should not be too hasty in reoperating. (3) Patients with marked superior oblique muscle paresis and secondary homolateral inferior oblique muscle overaction postoperatively did not improve spontaneously and required a weakening procedure on the homolateral inferior oblique muscle.

Adult↗

PubMed1993

Electrical stimulation partly reverses the muscle insulin resistance caused by tenotomy.

It was shown that 15-min electrical stimulation of the rat sciatic nerve greatly increases the in vitro measured sensitivity of lactate formation, glucose transport, and glycogen synthesis to insulin, impaired by previous tenotomy. The insulin sensitivity of all these processes was, however, still below that found in the stimulated intact soleus muscle. Extending the stimulation up to 30 min did not cause any further changes in insulin sensitivity either in tenotomized or in intact muscles.

Achilles Tendon↗

PubMed1989

Effects of tenotomy on muscle histology and energy metabolism in normal and dystrophic mice.

Creatine, phosphocreatine, ATP and phosphate concentrations were measured in extracts of tibialis anterior and gastrocnemius muscles from 42 normal and 39 dystrophic mice from 1 to 16 weeks of age. No differences were observed at 1 week, prior to the onset of histological abnormalities in dystrophic animals. Creatine and phosphocreatine concentrations were significantly reduced in older dystrophic mice, and phosphate levels were higher, while ATP levels generally did not differ. Tenotomy of gastrocnemius at 1 week prevented the development of dystrophy in this muscle but this was not associated with an increase in phosphogen concentrations. Serum creatine kinase levels were significantly higher in dystrophic mice than normal mice but only during the first two weeks of life; levels in older mice were not significantly different. This study shows that the reported deficits in phosphogen concentrations in dystrophic muscles are likely to reflect the results, rather than the cause, of the dystrophic process.

Age Factors↗

PubMed1993

Fowler's tenotomy for mallet deformity.

35 patients with established mallet finger deformities were treated with Fowler's tenotomy of the central extensor tendon. The mean lack of extension before operation was 45 degrees. 26 patients regained full extension, eight patients had a residual deformity of 10-20 degrees and one patient of 30 degrees.

Female↗

PubMed2006

Arthroscopic psoas tenotomy.

Tenotomy may be indicated for psoas tendinitis or painful snapping if conservative treatment remains unsuccessful. Because of significant complications with open techniques, endoscopic operations have been developed. We present a new arthroscopic technique to access and release the psoas tendon from the hip joint. This procedure can be performed in addition to other arthroscopic procedures of the hip joint or alone. To exclude additional hip disease, a diagnostic round of the joint should be completed. After hip arthroscopy of the central compartment has been performed, traction is released and the 30 degrees arthroscope is placed via the proximal anterolateral portal lying on the anterior femoral neck. The medial synovial fold can be identified. This fold lies slightly medially underneath the anteromedial capsule at the level of the psoas tendon. The arthroscope is turned toward the anterior capsule. Sometimes, the tendon shines through a thin articular capsule, or it may even be accessed directly via a hole connecting the hip joint and the iliopectineal bursa at the level of the anterior head-neck junction. If this cannot be done, an electrothermic probe is introduced via the anterior portal to make a 2-cm transverse capsular incision. The tendon is released with the back side of the electrothermic device turned to the iliacus muscle that lies anterior to the psoas tendon. A complete release is achieved when the tendon stumps can be seen gapping at a distance and the fibers of the iliacus muscle are visible. The first 9 patients who underwent surgery performed according to this technique developed no complications, and their hip flexion strength was restored to normal within 3 months.

Arthroscopy↗

PubMed2006

An autopsy case of intraoperative death due to pulmonary fat embolism--possibly caused by release of tourniquet after multiple muscle-release and tenotomy of the bilateral lower limbs.

We report a case of a juvenile male with muscle rigidity caused by cerebral palsy who experienced intraoperative sudden death due to pulmonary fat embolism after multiple muscle-release and tenotomy of the bilateral lower limbs. Data were obtained through review of the surgical and anesthesia records, as well as from autopsy and histopathological examination. All surgical procedures were performed within the same operation, beginning with the right lower limb and then proceeding with the left lower limb, with application of a pneumatic tourniquet to avoid intraoperative hemorrhage. Slight changes in the hemodynamics were noticed after release of the right tourniquet. Further, sudden onset of hypotension, severe bradycardia, and a marked decrease in percutaneously monitored oxygen saturation occurred just after release of the left tourniquet when the left limb was raised for casting. The patient died despite immediate and vigorous cardiopulmonary resuscitation. At autopsy performed 20 h after death, examination of the lungs revealed a pale surface, slight edema, and obvious fat droplets in the vessels at the cut surfaces. Histopathological examination with fat staining was notable for the presence of pulmonary fat embolism. These results suggest that restoration of venous return after removal of the tourniquet combined with massive fat embolism from dead spaces was the likely cause of death.

Adolescent↗

PubMed2005

Partial rupture of the distal semitendinosus tendon treated by tenotomy--a previously undescribed entity.

Hamstring strains are common. They are usually treated conservatively, with good results. Thus far, the only subset of patients who have been considered for surgery are those with complete avulsions of the attachments. We describe a new clinical entity: partial rupture of the distal semitendinosus tendon; which has failed to settle with conservative treatment; and has been successfully treated by tenotomy.

Football↗

PubMedDate not supplied

Effects of neurectomy and tenotomy on the bone mineral density and strength of tibiae.

The right hindlimbs of 5 or 6-week old Wistar male rats were sciatic/femoral neurectomized, tenotomized or sham operated. The rats were sacrificed 2 weeks after the surgery and the tibiae were removed. pQCT measurement was performed on total, cortical, and trabecular bone separately at different regions. Reduction of the bone mineral density by unloading was observed more significantly at metaphysis than at diaphysis due to histological heterogeneity between metaphysis and diaphysis; metaphysis is rich in trabecular bone and diaphysis is abundant in cortical bone. Trabecular bone might be more sensitive to unloading because the reduction rate of volumetric bone mineral density in trabecular bone was approximately 10 times and 3 times larger than that of cortical bone in both neurectomy and tenotomy rats, respectively, Unloading also reduced the cross-sectional area and stress strain index at metaphysis.

Absorptiometry, Photon↗

PubMed1987

Central slip tenotomy for chronic mallet finger deformity.

Twenty patients with chronic mallet finger deformity were treated with central slip tenotomy. Seventeen patients had normal passive motion at the distal joint preoperatively. In them the average extensor lag was 37 degrees before the operation and 9 degrees after the operation. The average recurvatum at the proximal interphalangeal (PIP) joint was 10 degrees before the operation; postoperatively the extensor lag was less than 2 degrees.

Female↗

PubMed1989

Extensor tenotomy: a technique for correction of posttraumatic distal interphalangeal joint hyperextension deformity.

Tenotomy of the dorsal apparatus over the middle phalanx was done in 13 digits for treatment of posttraumatic hyperextension of the distal interphalangeal joint associated with a boutonniere deformity. All but one patient was improved with distal interphalangeal joint flexion averaging 45 degrees at follow-up. Four digits had a 5 degree to 10 degree extensor lag. This procedure is simple and reliable and should be considered when increased distal interphalangeal joint flexion is desired.

Adolescent↗

PubMed1991

Regeneration of rat extensor digitorum longus tendon: the effect of a sequential partial tenotomy on collagen fibril formation.

Alterations in collagen fibril diameter distribution were measured in rat extensor tendons subsequent to two-successive partial tenotomies, 30 days apart. Subsequent to surgery three areas were created. The primary lesion area, consisted of a regenerating window in the central half of the tissue. Secondary lesion areas consisted of strips at the lateral margin of the tissue, removed during the second operation. Between the lesion areas were the non-lesion areas consisting of tissue not removed during surgery. Tissue was examined 40, 60, 120 and 240 days after the initial operation. Within each group, primary and secondary lesion areas remained unimodal in collagen fibril diameter distribution throughout the period of the study. This distribution was initially unimodal in the non-lesion areas but became multimodal by 240 days postoperatively. Both the primary lesion area and non-lesion areas exhibited an increase in frequency of small diameter fibrils between 40 and 60 days postoperatively. It is suggested that all observations may be related to the level of applied stress.

Animals↗

PubMedDate not supplied

Eye alignment and cortical binocularity in strabismic kittens: a comparison between tenotomy and recession.

Interocular alignment was assessed by corneal light reflex photography in 15 normal and 26 strabismic kittens. Strabismus was induced at 3-4 weeks of age by severing one extraocular muscle (tenotomy), by cutting and reinserting the muscle at another position on the ocular globe (recession), or by combining recession of the medial rectus muscle with resection of the lateral rectus muscle of the same eye. Nineteen strabismic and five normal kittens were followed longitudinally from 12 days to about 6 months of age. Three out of six longitudinally followed tenotomized cats and six out of the 13 recessed cats conserved their postoperative ocular deviation throughout the testing period ("large-angle strabismics"). Three tenotomized and seven recessed cats showed a transient deviation for 1-2 weeks after surgery, after which the interocular deviation diminished to values found in normal cats ("microstrabismic" cats). Both recessed-resected cats showed a transient interocular deviation. In spite of their different developmental histories, all cats showed a clear breakdown of binocularity in area 17. Large-angle strabismics showed a dominance of the non-operated eye, while in microstrabismic cats, both eyes were equally effective in driving cortical cells. It thus appears that a transient strabismus is sufficient to produce a reduction of binocularity in area 17.

Animals↗

PubMed1988

[Eye position and function following late surgical correction of consecutive strabismus following primary tenotomy].

Even in patients with consecutive strabismus who had a partial or total tenotomy 10 to 50 years ago, reoperation is worthwhile. In 73% of the author's cases the squint angle was reduced to between -5% degrees and +5 degrees postoperatively; adduction or abduction were improved or normalized in 66%, convergence in 20%. In 29% simultaneous vision on a normal or slightly abnormal basis was achieved. Following dissection of scars and adhesions the tonotomied muscle was advanced and in some cases resected. If the squint angle was large, the antagonist was also recessed. In addition to preoperative diagnosis, which included prolonged compensation with prisms, the indication was affected by intraoperative findings.

Adult↗

PubMedDate not supplied

Results of biceps tenotomy for treatment of pathology of the long head of the biceps brachii.

Historically, the surgical treatment of bicipital pathology has been a variety of tenodesis techniques. The purpose of this study is to report the results of simple biceps tenotomy for the treatment of bicipital pathology. Thirty shoulders in 30 consecutive patients who had a simple arthroscopic biceps tendon release were reviewed. Data was collected according to the method of the American Shoulder and Elbow Surgeons (ASES) shoulder evaluation form. Outcome was assessed with the rating system of the ASES. The mean ASES shoulder score was 81.8. There was a significant reduction in pain and improvement in function after the procedure. The complication rate was 13.3%. Bicipital pathology is a significant cause of morbidity around the shoulder. The results of this study demonstrate that functional outcome as measured by the ASES scoring system can be very good with an arthroscopic biceps tendon release for the treatment of biceps tendon pathology.

Adolescent↗

PubMed1986

Flexor tendon lengthening by tenotomy at the musculotendinous junction.

The author presents his experience with an established technique of flexor tendon lengthening by tenotomy at the musculotendinous junction. This technique can be used for digital stiffness of forearm origin when active extension is possible on flexion of the wrist. There must not be adherence in the carpal tunnel or in the digital sheath, and active flexion must be preserved. It can also be used for digital stiffness in addition to other techniques. This kind of lengthening has some advantages: there are no sutures in the tendon itself, and it allows early reeducation in association with dynamic extension splinting. Active flexion is preserved immediately and there is good tendon healing. It is possible to lengthen selectively the superficial flexor or the deep flexor and in some cases both. Results are presented according to cause.

Adult↗

PubMed1984

Adductor tenotomy-obturator neurectomy.

A 3.7-year follow-up study of 25 cerebral palsied children with 41 adductor tenotomies and obturator neurectomies showed significant improvement in hip abduction and acetabular development.

Cerebral Palsy↗

PubMedDate not supplied

Prevention of hip dislocation in cerebral palsy by early psoas and adductors tenotomies.

The effectiveness of psoas and adductor tenotomies for the prevention of hip dislocation was investigated in 40 hips of 24 total-body-involved children. Age at operation ranged from 1.6 to 10 years. Results were evaluated by the Reimers migration percentage (MP). Average follow-up was 3 years. An overall good result was observed in 67% of cases. Results were correlated with age and MP at operation. Successful results were obtained in 90% of patients under age 4 who had an MP less than 33%. Preventive surgery should be performed at 2 or 3 years of age, before the onset of hip dysplasia.

Cerebral Palsy↗

PubMedDate not supplied

Hamstring tenotomies in cerebral palsy: long-term retrospective analysis.

One hundred seventeen cerebral palsy patients were followed for a mean of 3.4 years after undergoing hamstring tenotomy by proximal semimembranosus release in conjunction with distal semitendinosus and biceps femoris release. Range of motion was significantly improved 1 year after the operation and remained so for 4 years. Thirty percent of nonambulatory patients improved at least one level in activity, some at up to 12 years of age. Minor recurvatum was observed at 1 year but became nearly nonexistent after 3-5 years.

Activities of Daily Living↗