PMID- 981927
OWN - NLM
STAT- MEDLINE
DCOM- 19761230
LR  - 20161123
IS  - 0035-2659 (Print)
IS  - 0035-2659 (Linking)
VI  - 43
IP  - 7-9
DP  - 1976 Jul-Sep
TI  - [Patellar malposition, its incidence in patellar chondropathy and in a control
      population].
PG  - 461-8
AB  - Patellar disequilibrium consists of either external malpositioning of the patella
      (EMP) or external hyperpression (EHP), which are clearly visible on a 30degrees
      axial radiograph of the knee. Does this disequilibrium play a role in the
      development of patellar chondropathy? The authors have based their comparisons on
      a series of 40 subjects more than 60 years of age (average age: 68 years) who
      were free from pain and arthrosis of the knee. In this group they found 2 cases
      of EMP (5 percent) and 3 of EHP (7.5 percent). In their series of cases of
      patellar chondropathy (43 cases) there were, after correction for the cases with 
      a double etiology, 8.5 cases of EMP (20 percent) and 7 of EHP (16 percent). The
      differences between these figures and those for the control series are
      statistically significant for the number of cases of EMP (P less than 0.05), but 
      not for the number of cases of EHP, the etiological role of which is probable but
      for which proof would require a larger series of patients. From this work the
      following findings emerge: (1) The frequency of latent patellofemoral arthrosis
      in the aged control subjects with knee problems. 7 cases out of 47, or 12.5
      percent. (2) The frequency of patellar chondropathy apparently associated with
      the two etiological factors: out of 43 patients, 22 suffered from patellar
      disequilibrium (10 EMP and 12 EHP) but in 13 cases there was another associated
      possible cause of deterioration: traumatism or stress on the knee associated with
      work or sport. This methodological difficulty is discussed and resolved
      empirically. The importance of patellar disequilibrium in the development of
      degenerative patellofemoral affections derives not from the etiological
      importance but from the fact that they represent the only factor for which
      therapy may be given: elective internal rehabilitation or surgery (section of the
      external wing of the patella or transposition of the anterior tuberosity of the
      tibia).
FAU - Lequesne, M
AU  - Lequesne M
FAU - Lasry, C
AU  - Lasry C
FAU - Deguy, J
AU  - Deguy J
FAU - de Seze, S
AU  - de Seze S
LA  - fre
PT  - Journal Article
TT  - Les desequilibres rotuliens leur frequence dans la chondropathie rotulienne et
      dans une population temoin
PL  - France
TA  - Rev Rhum Mal Osteoartic
JT  - Revue du rhumatisme et des maladies osteo-articulaires
JID - 0407211
SB  - IM
MH  - Aged
MH  - Cartilage, Articular/physiopathology
MH  - Humans
MH  - Joint Diseases/*epidemiology
MH  - Joint Dislocations/complications
MH  - Knee/diagnostic imaging
MH  - Middle Aged
MH  - Patella/diagnostic imaging/*physiopathology
MH  - Pressure
MH  - Radiography
EDAT- 1976/07/01 00:00
MHDA- 1976/07/01 00:01
CRDT- 1976/07/01 00:00
PHST- 1976/07/01 00:00 [pubmed]
PHST- 1976/07/01 00:01 [medline]
PHST- 1976/07/01 00:00 [entrez]
PST - ppublish
SO  - Rev Rhum Mal Osteoartic. 1976 Jul-Sep;43(7-9):461-8.