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[[File:Hip prosthesis zones by DeLee and Charnley system, and Gruen system.jpg|thumb|250px|Zones of a hip prosthesis, by the DeLee and Charnley system,<ref name=Callaghan2007/> and the Gruen system.<ref>{{cite journal|last1=Neumann|first1=Daniel R.P.|last2=Thaler|first2=Christoph|last3=Hitzl|first3=Wolfgang|last4=Huber|first4=Monika|last5=Hofstädter|first5=Thomas|last6=Dorn|first6=Ulrich|title=Long-Term Results of a Contemporary Metal-on-Metal Total Hip Arthroplasty|journal=The Journal of Arthroplasty|volume=25|issue=5|year=2010|pages=700–708|issn=0883-5403|doi=10.1016/j.arth.2009.05.018|pmid=19596544}}</ref>]]
{{Multiple issues|{{one source|date=June 2014}}}}
After [[hip replacement]], '''hip prosthesis zones''' are regions in the interface between prosthesis material and the surrounding bone. These are used as reference regions when describing for example complications including [[Hip_replacement#Loosening|hip prosthesis loosening]] on [[medical imaging]]. Postoperative controls after hip replacement surgery is routinely done by [[projectional radiography]] in anteroposterior and lateral views.


==DeLee and Charnley==
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[[File:Hip prosthesis zones by DeLee and Charnley system, and Gruen system.jpg|thumb|200px|Zones of hip prosthesis, by the DeLee and Charnley system,<ref>{{cite journal|last1=Sköldenberg|first1=Olof|last2=Salemyr|first2=Mats|last3=Muren|first3=Olle|last4=Johansson|first4=Åke|last5=Ahl|first5=Torbjörn|last6=Bodén|first6=Henrik|title=The Ringloc liner compared with the Hexloc liner in total hip arthroplasty|journal=Orthopedic Reviews|volume=1|issue=1|year=2009|pages=16|issn=2035-8164|doi=10.4081/or.2009.e16}}</ref> and the Gruen system.<ref>{{cite journal|last1=Neumann|first1=Daniel R.P.|last2=Thaler|first2=Christoph|last3=Hitzl|first3=Wolfgang|last4=Huber|first4=Monika|last5=Hofstädter|first5=Thomas|last6=Dorn|first6=Ulrich|title=Long-Term Results of a Contemporary Metal-on-Metal Total Hip Arthroplasty|journal=The Journal of Arthroplasty|volume=25|issue=5|year=2010|pages=700–708|issn=08835403|doi=10.1016/j.arth.2009.05.018}}</ref>]]
The DeLee and Charnley system applies to the acetabular cup on anteroposterior radiographs. It divides the acetabulum into three equally large zones.<ref name=Callaghan2007>[https://books.google.com/books?id=-fwULYB1gJIC&pg=PA958 Page 958] in {{cite book|title=The Adult Hip, Volume 1|author=John J. Callaghan, Aaron G. Rosenberg, Harry E. Rubash|publisher=Lippincott Williams & Wilkins|year=2007|isbn=9780781750929}}</ref>
The '''Gruen zones''' is a system of dividing the interface between the [[Implant (medicine)|femoral component]] of a [[hip arthroplasty]] and the [[femur]] bone moving from lateral to medial [[calcar]], when viewing an [[X-ray|AP radiograph]] of the [[hip]], clinically useful to record the appearance of lucent areas when assessing the outcome of the operation.


==Gruen==
{{see also|Charnley zone}}
The '''Gruen zones''' is a system of dividing the interface between the bone and the stem of the hip prosthesis.

==Classification==


{| class="wikitable"
{| class="wikitable"
Line 49: Line 49:
| journal = Clin Orthop Relat Res
| journal = Clin Orthop Relat Res
| volume = 141
| volume = 141
| pages = 17-27
| pages = 17–27
| year = 1979
| year = 1979
| issue = 141
| pmid = 477100
| pmid = 477100
}}
}}

Revision as of 15:19, 9 March 2023

Zones of a hip prosthesis, by the DeLee and Charnley system,[1] and the Gruen system.[2]

After hip replacement, hip prosthesis zones are regions in the interface between prosthesis material and the surrounding bone. These are used as reference regions when describing for example complications including hip prosthesis loosening on medical imaging. Postoperative controls after hip replacement surgery is routinely done by projectional radiography in anteroposterior and lateral views.

DeLee and Charnley

The DeLee and Charnley system applies to the acetabular cup on anteroposterior radiographs. It divides the acetabulum into three equally large zones.[1]

Gruen

The Gruen zones is a system of dividing the interface between the bone and the stem of the hip prosthesis.

Zone Description
I Greater trochanter
II
III
IV Distal to tip
V
VI
VII Lesser trochanter

References

  1. ^ a b Page 958 in John J. Callaghan, Aaron G. Rosenberg, Harry E. Rubash (2007). The Adult Hip, Volume 1. Lippincott Williams & Wilkins. ISBN 9780781750929.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. ^ Neumann, Daniel R.P.; Thaler, Christoph; Hitzl, Wolfgang; Huber, Monika; Hofstädter, Thomas; Dorn, Ulrich (2010). "Long-Term Results of a Contemporary Metal-on-Metal Total Hip Arthroplasty". The Journal of Arthroplasty. 25 (5): 700–708. doi:10.1016/j.arth.2009.05.018. ISSN 0883-5403. PMID 19596544.

Further reading

Gruen, TA; McNeice, GM; Amstutz, HC (1979). "Modes of failure of cemented stem-type femoral components: a radiographic analysis of loosening". Clin Orthop Relat Res. 141 (141): 17–27. PMID 477100.

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