Density changes at the proximal tibia after medial meniscectomy

Trabecular bone density changes at the proximal tibia were studied after total and partial meniscectomy using quantitative computerized tomography. Thirty‐seven medially meniscectomized patients (5‐and 10‐year followup) and 10 control persons were included. In the partially and the totally meniscectomized knees, the area of maximal density in the medial tibial condyle was displaced ∼4 mm in a posteromedial direction relative to the position in the intact knees. In both partially and totally meniscectomized knees, the density in the region of tibiofemoral contact in the medial tibial condyle was higher compared with the density in the same region in the contralateral intact knees. This difference was of the same order in the 5‐ and 10‐year follow‐up groups. The density difference between the meniscectomized and the intact knees in the region of tibiofemoral contact in the medial condyle was significantly higher in totally than in partially meniscectomized patients. It is concluded that not only total but also partial medial meniscectomy is followed by density changes, occurring within the first 5 years after meniscectomy. The results emphasize the importance of the utmost conservatism in surgery on the meniscus.

[1]  S. M. Bentzen,et al.  Pseudo 3D Mapping Of Cancellous Bone-Strength By X-Ray Computed Tomography , 1986, Other Conferences.

[2]  Freddie H. Fu,et al.  Meniscal tears: The effect of meniscectomy and of repair on intraarticular contact areas and stress in the human knee , 1986, The American journal of sports medicine.

[3]  I. Hvid,et al.  Subchondral bone strength in arthrosis. Cadaver studies of tibial condyles. , 1986, Acta orthopaedica Scandinavica.

[4]  I. Hvid,et al.  Contribution of the cortex to epiphyseal strength. The upper tibia studied in cadavers. , 1985, Acta orthopaedica Scandinavica.

[5]  A V Swan,et al.  Late degenerative changes after meniscectomy. Factors affecting the knee after operation. , 1984, The Journal of bone and joint surgery. British volume.

[6]  E. Radin,et al.  Role of the menisci in the distribution of stress in the knee. , 1984, Clinical orthopaedics and related research.

[7]  A. M. Ahmed,et al.  In-vitro measurement of static pressure distribution in synovial joints--Part I: Tibial surface of the knee. , 1983, Journal of biomechanical engineering.

[8]  D. Dandy,et al.  Arthroscopic, open partial, and total meniscectomy. A comparative study. , 1983, The Journal of bone and joint surgery. British volume.

[9]  T. Fukubayashi,et al.  The contact area and pressure distribution pattern of the knee. A study of normal and osteoarthrotic knee joints. , 1980, Acta orthopaedica Scandinavica.

[10]  B B Seedhom,et al.  Transmission of the Load in the Knee Joint with Special Reference to the Role of the Menisci: Part II: Experimental Results, Discussion and Conclusions , 1979 .

[11]  A. Goodship,et al.  Functional adaptation of bone to increased stress. An experimental study. , 1979, The Journal of bone and joint surgery. American volume.

[12]  N. Shrive,et al.  Load-bearing in the knee joint. , 1978, Clinical orthopaedics and related research.

[13]  J. B. McGinity,et al.  Partial or total meniscectomy: a comparative analysis. , 1977, The Journal of bone and joint surgery. American volume.

[14]  J. Noble.  Lesions of the menisci. Autopsy incidence in adults less than fifty-five years old. , 1977, The Journal of bone and joint surgery. American volume.

[15]  D G Wilder,et al.  Mechanical changes in the knee after meniscectomy. , 1976, The Journal of bone and joint surgery. American volume.

[16]  A. M. Lutfi.  Morphological changes in the articular cartilage after meniscectomy. An experimental study in the monkey. , 1975, The Journal of bone and joint surgery. British volume.

[17]  P G Maquet,et al.  Femorotibial weight-bearing areas. Experimental determination. , 1975, The Journal of bone and joint surgery. American volume.

[18]  D B Kettelkamp,et al.  Factors effecting late results after meniscectomy. , 1974, The Journal of bone and joint surgery. American volume.

[19]  P S Walker,et al.  Variations in strength and structure of cancellous bone at the knee. , 1974, Journal of biomechanics.

[20]  I. Paul,et al.  Role of mechanical factors in pathogenesis of primary osteoarthritis. , 1972, Lancet.

[21]  E M Tapper,et al.  Late results after meniscectomy. , 1969, The Journal of bone and joint surgery. American volume.

[22]  J. Jackson,et al.  Degenerative changes in the knee after meniscectomy. , 1968, British medical journal.

[23]  T. Fairbank.  Knee joint changes after meniscectomy. , 1948, The Journal of bone and joint surgery. British volume.

[24]  Don King,et al.  The function of semilunar cartilages , 1936 .

[25]  A Rosenklint,et al.  Long-term follow-up of meniscectomy in athletes. A prospective longitudinal study. , 1987, The Journal of bone and joint surgery. British volume.

[26]  S M Bentzen,et al.  Mechanical strength of tibial trabecular bone evaluated by X-ray computed tomography. , 1987, Journal of biomechanics.

[27]  T. Brown,et al.  In vitro contact stress distribution on the femoral condyles , 1984, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[28]  H. Gundersen,et al.  Reconstruction of the formative site in iliac trabecular bone in 20 normal individuals employing a kinetic model for matrix and mineral apposition. , 1984, Metabolic bone disease & related research.

[29]  T. Koob,et al.  Early changes in material properties of rabbit articular cartilage after meniscectomy , 1983, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[30]  L. S. Matthews,et al.  The distribution of tibial trabecular bone properties as determined by computer assisted axial tomography , 1983 .

[31]  W C Hayes,et al.  Axisymmetric finite element analysis of the lateral tibial plateau. , 1978, Journal of biomechanics.

[32]  W. W. Schaefer,et al.  The degenerative effects of partial and total resection of the medial meniscus in dogs' knees. , 1975, Clinical orthopaedics and related research.