Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca
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Acta Chir Orthop Traumatol Cech · Jan 2011
[Arthroscopic findings concerning rotator cuff lesions and their operative management].
Our objective is to introduce our simplified, easy-to-use classification of rotator cuff (RC) lesions, describe the frequency of individual findings in a considerably large series of shoulder joints examined by arthroscopy, evaluate the results of the operative management of individual lesion types, and recommend optimal surgical approaches. ⋯ Out of a total of 516 RC lesions, type I was the most prevalent (54%), followed by type V (16%). The prevalence of lesion types II, III and IV was about 10% each. In type I, the mean improvement measured by the Constant score was 36 points. As for type II, open reconstruction, ASK-assisted reconstruction and ASK reconstruction resulted in mean improvements of 31, 34, and 35 points, respectively. While open reconstruction of type III lesions was associated with a 27-point improvement on the Constant score, the use of ASK-assisted reconstruction resulted in a 29-point improvement. In type IV, the use of ASK palliative resection of RC remnants, muscle transfer (Karas), partial reconstruction (Burkhart), and a combination of the last two methods led to the mean 19-, 25-, 22-, and 22- point improvements respectively. Following ASK palliative resection, the mean Constant score improvement in type V lesions was 17 points, while the use of resurfacing, if performed, was associated with a 21-point improvement. DISCUSSION In type I lesions, favourable long-term outcomes are achieved through ASK SAD, which removes RC irritation within the narrowed subacromial space. RC reconstruction or sutures, which can be performed arthroscopically quite easily, are indicated in type II lesions. The situation is similar in type III lesions, where, from a technical point of view, reconstruction is facilitated by ASK-assisted reconstruction with mini-incision. Since type IV lesions are the most complex ones, the largest number of surgical management methods is described here. As for muscle transfer, the subscapularis and latissimus dorsi muscles are used most often, the latter requiring wider surgical access. Partial non-anatomical reconstruction is useful, too. New synthetic prostheses, as well as biosynthetic or biologic prostheses prepared with cultures of pluripotent stem cells, have been developed recently. Unlike some other authors, we prefer open surgery. Attempts at ASK reconstruction increase surgical time considerably, while the cosmetic effect is negligible if many ASK ports are used. Reconstruction is contraindicated in type V lesions; good outcomes are being achieved with ASK palliative resection of RC remnants (Apoil). Type I lesions are successfully managed with ASK SAD. The method of choice in type II lesions is ASK reconstruction. In type III lesions, we have been getting good results with ASK-assisted RC reconstruction with mini-incision. As for type IV lesions in older patients, we have good experience with muscle transfer of a part of the intact subscapularis muscle tendon (Karas); partial non-anatomial reconstruction (Burkhart) is deemed more beneficial in younger and more active patients. For anatomical reasons, a combination of both above-mentioned methods had to be used in some cases. ASK palliative resection of RC remnants, rarely followed by resurfacing when unsuccessful, remains the method of choice in treating type V lesions. Key words: shoulder arthroscopy, rotator cuff lesions, classification, subacromial decompression, reconstruction, open surgery, palliative resection, Constant Functional Score.
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Acta Chir Orthop Traumatol Cech · Jan 2011
[Fractures of the L5 transverse process in pelvic ring injury].
The aim of the study was to record the frequency of L5 transverse process fractures associated with pelvic injuries and to find out whether in unstable pelvic fractures the frequency is significantly higher. ⋯ The study shows a significantly higher occurrence of L5 transverse process fractures in patients with unstable pelvic ring injuries. The finding of such a fracture should focus attention to looking for trauma to the dorsal pelvic structures.
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Acta Chir Orthop Traumatol Cech · Jan 2011
[Reduction of radiation exposure by the use of fluoroscopic guidance in transpedicular instrumentation].
The variability in width, height, and orientation of spinal pedicles makes pedicle screw insertion a delicate operation. Fluoroscopic guidance often exposes the patient and especially surgeons to relatively high doses of ionising radiation. The use of pulsed fluoroscopy is safer, as compared to continuous fluoroscopy, because of reduced radiation exposure. There are increasing numbers of literature reports regarding the high doses of radiation to which orthopaedic and spine surgeons are exposed during surgical procedures. Spine surgery can be associated with significant radiation exposure to the surgical staff. The purpose of this prospective study was to compare a computer-assisted navigation with a conventional procedure in order to assess if it is possible to reduce radiation exposure while preserving the accuracy of screw placement. ⋯ Navigation allows us to keep the same accuracy of pedicle screw placement while reducing radiation exposure of the surgeons and operating room staff by about one quarter. In multiple-level vertebral instrumentations this reduction is more pronounced. In centres where many procedures involving spine instrumentation are done every day, the "saved" exposure time can amount to hours.
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Acta Chir Orthop Traumatol Cech · Jan 2011
Case Reports[Non-union after a vertical fracture of the sacral central zone with a conical dislocation of the pelvic ring].
A longitudinal (vertical) fracture of the sacrum passing through the central sacral canal is a very rare injury, reported in the literature mostly as case reports. Out of 24 reference found, non-union associated with this fracture has been reported only once. A longitudinal fracture of the sacrum is always associated with injury to the anterior pelvic ring. ⋯ The implants were introduced percutaneously using CT guidance. Stabilisation of the anterior part of the pelvis was performed by using a supra-acetabular external pelvic fixator; the original implant was left in situ. Consequently, the sacral non-union healed within one year.
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The development of a cervical kyphotic deformity can be associated with a degenerative disease, trauma, tumour, developmental anomaly and also a surgical procedure. Post-operative kyphosis can develop after both the anterior and posterior surgical approaches. The deformity can also result from systemic diseases, such as ankylosing spondylitis or rheumatoid arthritis. The aim of the study was to make the clinical and radiographic evaluation of a group of patients with kyphotic deformity treated at our department. ⋯ The results of the study showed a marked improvement in the patients' quality of life after kyphosis correction, improved neurological status and an improved posture seen on radiograms of the cervical spine. The study also revealed a higher number of potential complications associated, in particular, with corrective osteotomy. The best results were achieved with the combined surgical approach; however, the choice of a surgical method was independent of the patient's clinical status.