References
- Nachemson A. The lumbar spine: An orthopaedic challence. Spine 1976; 1: 59–71
- Magora A., Schwartz A. Relation between low back pain syndrome and x-ray findings. Scand J Rehabil Med 1978; 10: 135–45
- Friberg O. The statics of postural pelvic tilt scoliosis; A radiographic study on 288 consecutive chronic LBP patients. Clin Biomech 1987; 2: 211–9
- Friberg O. Lumbar instability: A dynamic approach by traction-compression radiography. Spine 1987; 12: 119–29
- Friberg O. Clinical symptoms and biomechanics of lumbar spine and hip joint in leg length inequality. Spine 1983; 8: 643–51
- Pearcy M., Shepherd J. Is there instability in spondylolisthesis?. Spine 1985; 10: 175–7
- Spalteholz W., Spanner R. Handatlas und Lehrbuch der Anatomie des Menschen15th ed. Schelte-ma and Holkema, Amsterdam 1953
- Grieve G. P. Common vertebral joint problems. Churchill Livingstone, Edinburgh, London, Melbourne, New York 1981
- Knutsson F. The instability associated with disc degeneration in the lumbar spine. Acta Radiol 1944; 25: 593
- Friberg O. Symptomatic or asymptomatic spondylolisthesis - a matter of instability or stability. Finnish J Orthop Traumatol 1987; 10(2)101–3, (In Finnish)
- Cobb J. R. Outline for the study of scoliosis. Instructional course lectures. J Am Acad Orthop Surg 1948; 5: 261–75
- Saraste H., Brorström L.-Ä., Aparisi T., Axdorph G. Radiographic measurement of the lumbar spine: A clinical and experimental study in man. Spine 1985; 10: 236–41