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Published in: International Orthopaedics 6/2015

01-06-2015 | Original Paper

Unstable hip arthroplasties. A prospective cohort study on seventy dislocating hips followed up for four years

Authors: Olle Wallner, André Stark, Olle Muren, Thomas Eisler, Olof Sköldenberg

Published in: International Orthopaedics | Issue 6/2015

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Abstract

Purpose

Dislocating hip prosthesis remains a substantial clinical problem. The aim of this study is to describe the risk of recurrent instability after a primary dislocation of primary hip arthroplasty performed for osteoarthritis (OA) or femoral neck fracture (FNF).

Methods

Seventy patients (male/females: 25/45; mean age 77 [range 46–94]) with dislocating hip arthroplasties were included in a prospective cohort study and followed for four years. Radiographs and all surgical records were reviewed. We compared stable hips to those who either continued to dislocate or were revised due to recurrent instability (unstable group).

Results

Forty-two hips (60 %) had episodes of recurrent instability leading to repeated closed reductions or major revision surgery and were classified as unstable.
A diagnosis of FNF and cognitive dysfunction (OR 9.3 [95 % CI 1.4–64.1]) or postoperative radiological discrepancies such as leg-lengthening and offset reduction increased the risk of further instability (OR 13.5 [95 % CI 1.3–148.1]). The surgical approach at primary surgery and ASA class did not significantly influence the risk of continued instability.

Conclusions

Patients with a FNF and cognitive dysfunction or with sub-optimal postoperative radiographs after hip arthroplasty surgery are at high risk of recurrent instability after a primary dislocation. For hip fracture patients, all efforts should be made to avoid the first dislocation.
Literature
2.
go back to reference Enocson A, Pettersson H, Ponzer S, Tornkvist H, Dalen N, Tidermark J (2009) Quality of life after dislocation of hip arthroplasty: a prospective cohort study on 319 patients with femoral neck fractures with a one-year follow-up. Qual Life Res 18(9):1177–1184. doi:10.1007/s11136-009-9531-x PubMedCrossRef Enocson A, Pettersson H, Ponzer S, Tornkvist H, Dalen N, Tidermark J (2009) Quality of life after dislocation of hip arthroplasty: a prospective cohort study on 319 patients with femoral neck fractures with a one-year follow-up. Qual Life Res 18(9):1177–1184. doi:10.​1007/​s11136-009-9531-x PubMedCrossRef
3.
go back to reference Hedlundh U, Fredin H (1995) Patient characteristics in dislocations after primary total hip arthroplasty. 60 patients compared with a control group. Acta Orthop Scand 66(3):225–228PubMedCrossRef Hedlundh U, Fredin H (1995) Patient characteristics in dislocations after primary total hip arthroplasty. 60 patients compared with a control group. Acta Orthop Scand 66(3):225–228PubMedCrossRef
7.
go back to reference Hedlundh U, Ahnfelt L, Hybbinette CH, Weckstrom J, Fredin H (1996) Surgical experience related to dislocations after total hip arthroplasty. J Bone Joint Surg (Br) 78(2):206–209 Hedlundh U, Ahnfelt L, Hybbinette CH, Weckstrom J, Fredin H (1996) Surgical experience related to dislocations after total hip arthroplasty. J Bone Joint Surg (Br) 78(2):206–209
9.
go back to reference Callanan MC, Jarrett B, Bragdon CR, Zurakowski D, Rubash HE, Freiberg AA, Malchau H (2011) The John Charnley Award: risk factors for cup malpositioning: quality improvement through a joint registry at a tertiary hospital. Clin Orthop Relat Res 469(2):319–329. doi:10.1007/s11999-010-1487-1 PubMedCentralPubMedCrossRef Callanan MC, Jarrett B, Bragdon CR, Zurakowski D, Rubash HE, Freiberg AA, Malchau H (2011) The John Charnley Award: risk factors for cup malpositioning: quality improvement through a joint registry at a tertiary hospital. Clin Orthop Relat Res 469(2):319–329. doi:10.​1007/​s11999-010-1487-1 PubMedCentralPubMedCrossRef
10.
go back to reference Kjellberg M, Al-Amiry B, Englund E, Sjoden GO, Sayed-Noor AS (2012) Measurement of leg length discrepancy after total hip arthroplasty. The reliability of a plain radiographic method compared to CT-scanogram. Skeletal Radiol 41(2):187–191. doi:10.1007/s00256-011-1166-7 PubMedCrossRef Kjellberg M, Al-Amiry B, Englund E, Sjoden GO, Sayed-Noor AS (2012) Measurement of leg length discrepancy after total hip arthroplasty. The reliability of a plain radiographic method compared to CT-scanogram. Skeletal Radiol 41(2):187–191. doi:10.​1007/​s00256-011-1166-7 PubMedCrossRef
11.
go back to reference Kjellberg M, Englund E, Sayed-Noor AS (2009) A new radiographic method of measuring femoral offset. The Sundsvall method. Hip Int 19(4):377–381PubMed Kjellberg M, Englund E, Sayed-Noor AS (2009) A new radiographic method of measuring femoral offset. The Sundsvall method. Hip Int 19(4):377–381PubMed
13.
go back to reference Bourne RB, Mehin R (2004) The dislocating hip: what to do, what to do. J Arthroplasty 19(4 Suppl 1):111–114PubMedCrossRef Bourne RB, Mehin R (2004) The dislocating hip: what to do, what to do. J Arthroplasty 19(4 Suppl 1):111–114PubMedCrossRef
14.
go back to reference Philippot R, Camilleri JP, Boyer B, Adam P, Farizon F (2009) The use of a dual-articulation acetabular cup system to prevent dislocation after primary total hip arthroplasty: analysis of 384 cases at a mean follow-up of 15 years. Int Orthop 33(4):927–932. doi:10.1007/s00264-008-0589-9 PubMedCentralPubMedCrossRef Philippot R, Camilleri JP, Boyer B, Adam P, Farizon F (2009) The use of a dual-articulation acetabular cup system to prevent dislocation after primary total hip arthroplasty: analysis of 384 cases at a mean follow-up of 15 years. Int Orthop 33(4):927–932. doi:10.​1007/​s00264-008-0589-9 PubMedCentralPubMedCrossRef
17.
go back to reference Enocson A, Hedbeck CJ, Tidermark J, Pettersson H, Ponzer S, Lapidus LJ (2009) Dislocation of total hip replacement in patients with fractures of the femoral neck. Acta Orthop 80 (2):184–189. doi:910818371 [pii] 10.3109/1745367090293002 Enocson A, Hedbeck CJ, Tidermark J, Pettersson H, Ponzer S, Lapidus LJ (2009) Dislocation of total hip replacement in patients with fractures of the femoral neck. Acta Orthop 80 (2):184–189. doi:910818371 [pii] 10.3109/1745367090293002
19.
go back to reference Howie DW, Holubowycz OT, Middleton R, Large Articulation Study G (2012) Large femoral heads decrease the incidence of dislocation after total hip arthroplasty: a randomized controlled trial. J Bone Joint Surg Am 94(12):1095–1102. doi:10.2106/JBJS.K.00570 CrossRef Howie DW, Holubowycz OT, Middleton R, Large Articulation Study G (2012) Large femoral heads decrease the incidence of dislocation after total hip arthroplasty: a randomized controlled trial. J Bone Joint Surg Am 94(12):1095–1102. doi:10.​2106/​JBJS.​K.​00570 CrossRef
22.
go back to reference Lachiewicz PF, Soileau ES (2002) Stability of total hip arthroplasty in patients 75 years or older. Clin Orthop Relat Res 405:65–69PubMedCrossRef Lachiewicz PF, Soileau ES (2002) Stability of total hip arthroplasty in patients 75 years or older. Clin Orthop Relat Res 405:65–69PubMedCrossRef
23.
go back to reference Pfeiffer E (1975) A short portable mental status questionnaire for the assessment of organic brain deficit in elderly patients. J Am Geriatr Soc 23(10):433–441PubMedCrossRef Pfeiffer E (1975) A short portable mental status questionnaire for the assessment of organic brain deficit in elderly patients. J Am Geriatr Soc 23(10):433–441PubMedCrossRef
24.
go back to reference Tidermark J (2003) Quality of life and femoral neck fractures. Acta Orthop Scand Suppl 74(309):1–42PubMedCrossRef Tidermark J (2003) Quality of life and femoral neck fractures. Acta Orthop Scand Suppl 74(309):1–42PubMedCrossRef
Metadata
Title
Unstable hip arthroplasties. A prospective cohort study on seventy dislocating hips followed up for four years
Authors
Olle Wallner
André Stark
Olle Muren
Thomas Eisler
Olof Sköldenberg
Publication date
01-06-2015
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 6/2015
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-014-2583-8

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