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PubMedDate not supplied

[The anatomical x-ray validation of microsurgical treatment methods in intervertebral hernias of the lumbosacral spine].

The microsurgical anatomy of the lateral region of the lumbosacral region of the vertebral canal was studied in 15 human cadavers. The vertebral canal and intervertebral foramina were X-ray studied in 10 healthy subjects and in 50 patients with lumbar osteochondrosis. The morphological and X-ray findings were used in the development of microsurgical methods for removing lumbar discal hernias, which were employed in 40 patients with this abnormality. The control group included 50 patients with discal hernias who had been operated on by the conventional methods. The advantages of microsurgical methods have been indicated.

Adult↗
PubMed2002

The free latissimus dorsi flap revisited: a primary option for coverage of wide recurrent lumbosacral defects.

In comparison with other regions of the trunk, defects located in the lumbosacral region are infrequent. However, these particular lesions sometimes present difficulties in reconstruction, arising from the quality of the surrounding tissue and the width of the defects. In this area, the skin adheres strongly to subcutaneous tissue and is difficult to mobilize. Attempts to perform local or regional flaps for covering defects of this area often end in necrosis of the flaps, with subsequent risk of infection and unstable wounds. The consequence is larger defects and the need for a wide, tension-free coverage, which can be performed after a wide debridement. The authors report on 10 patients presenting with wide, recurrent (and in some cases, infected) defects of the lumbosacral region, after already having undergone several reconstructive local or regional operations. In all cases, the authors harvested a free latissimus dorsi flap, lengthening the pedicle by means of an arteriovenous suralis loop connected to the thoracodorsal vessels (lumbar defect) or the femoral vessels (sacral defect). The procedure, already described in the past by others, has been revisited by the authors' group and used as the technique of choice in selected cases, that is, in the presence of wide, recurrent, and infected lesions; radiation; and scarring injuries. The authors thus obtained stable coverage with well-vascularized tissue and were able to save the patients any further operations. The authors suggest, therefore, that this procedure can be used in cases of wide and recurrent defects where other conventional procedures have failed. Advantages, disadvantages, and technical features of the method used are discussed in this article.

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PubMed1995

Two-level spinal stenosis in minipigs. Hemodynamic effects of exercise.

STUDY DESIGN: Twenty-two Göttingen minipigs were trained to run on a treadmill. Two-level lumbar spinal stenosis was created in 12 pigs, 10 were unoperated control subjects. Blood flow of the spinal cord and nerve roots was determined with microspheres at rest, during exercise, and after exercise. OBJECTIVES: To study the effect of lumbar spinal stenosis and exercise on blood flow of spinal neural tissue. SUMMARY OF BACKGROUND DATA: Neurogenic claudication, the key symptom of lumbar spinal stenosis, may be caused by vascular impairment or mechanical distress of neural tissue during exercise. Experimental compression of the cauda equina causes reversible nerve root edema, stasis, blood flow decrease, and compromised neural function. The vascular pathophysiology of spinal stenosis during exercise has not been studied previously. METHODS: Pigs were trained daily for 3 months. Two-level 25% lumbar spinal stenosis was introduced by placement of stenosing bands around the dural sac. Neurologic function was monitored before surgery by evoked potentials and after surgery by the Tarlov score. Regional blood flow in lumbosacral neural tissue was measured 3 days after chronic catheterization using microspheres at rest, during exercise at 3 km/h for 15 minutes, and at rest 30 minutes after exercise. RESULTS: Blood flow of grey and white matter increased during exercise in both groups, with no differences between groups. slight hyperemia prevailed after exercise in white matter of the stenotic area but not in grey matter. Nerve root blood flow was largely unchanged in control subjects during exercise but was reduced in spinal stenosis at rest, further depressed during exercise, and normalized after exercise. Dural blood flow was elevated throughout. CONCLUSION: The study suggests that exercise-induced impairment of spinal nerve root blood flow plays a role in the pathophysiology of neurogenic claudication.

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PubMed2005

Differential diagnosis of spondylolysis in a patient with chronic low back pain.

STUDY DESIGN: Resident's case problem. BACKGROUND: A 26-year-old male sought physical therapy services via direct access secondary to a flare-up of a chronic low back pain condition. The patient complained of recent onset of lumbosacral joint pain, including (1) constant right-sided deep-bruise sensation, (2) intermittent right-sided sharp stabbing pain, and (3) constant bilateral aching. The patient's past medical history included a hyperextension low back injury while playing football at age 17. Physical examination revealed (1) deep pain with palpation over the right lumbosacral joint region, (2) sharp right lumbosacral joint pain with 1 repetition of active trunk backward bending, and (3) a marked increase in pain and joint hypomobility with right unilateral joint assessment at the L4 and L5 spinal levels. DIAGNOSIS: The examining therapist referred the patient for radiographic evaluation due to strong suspicions of a pars interarticularis bony defect. Lumbar plain films, oblique views, revealed an L5 bilateral pars defect, leading to a diagnosis of a longstanding bilateral L5 spondylolysis. DISCUSSION: Patients with low back pain often seek physical therapy services. Identification of pathology requiring examination by other health care providers, leading to patient referral to other health care practitioners, is a potential important outcome of the therapist's examination. This resident's case problem illustrates the importance of a systematic examination scheme, including a thorough medical screening component that led to a patient referral for radiographic evaluation. The resultant diagnosis, although not representing serious pathology, did impact the therapist's patient plan of care.

Adult↗
PubMedDate not supplied

[Lumbosacral pain].

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