Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case report

Abstract Background Open wedge high tibial osteotomy is a standard procedure for frontal realignment. It is indicated in varus knee with reduced mechanical medial proximal tibia angle. Overcorrection producing a mechanical medial proximal tibia angle out of the normal range (85–90°) is not recommend...

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Main Authors: Christian Konrads, Sufian S. Ahmad, Tina Histing, Maher Ibrahim
Format: Article
Language:English
Published: BMC 2022-02-01
Series:Journal of Medical Case Reports
Subjects:
Online Access:https://doi.org/10.1186/s13256-022-03257-2
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author Christian Konrads
Sufian S. Ahmad
Tina Histing
Maher Ibrahim
author_facet Christian Konrads
Sufian S. Ahmad
Tina Histing
Maher Ibrahim
author_sort Christian Konrads
collection DOAJ
description Abstract Background Open wedge high tibial osteotomy is a standard procedure for frontal realignment. It is indicated in varus knee with reduced mechanical medial proximal tibia angle. Overcorrection producing a mechanical medial proximal tibia angle out of the normal range (85–90°) is not recommended because this would lead to unphysiological joint-line orientation. Osteotomies around the knee also influence the adjacent ankle and hip joints. For the hip, it is known that frontal alignment of the leg influences the ischiofemoral space. A decreased ischiofemoral space can lead to painful impingement between the ischial bone and the lesser trochanter. Case presentation A 53-year-old German woman presented with severe ischiofemoral impingement symptoms and valgus malalignment of the left leg after open wedge high tibial osteotomy, which was indicated and performed by an orthopedic surgeon with intention to treat medial knee pain due to degenerative arthritis of the medial compartment years after medial meniscectomy. The mechanical medial proximal tibia angle was 100.5°. We performed closed wedge high tibial osteotomy producing a mechanical medial proximal tibia angle of 90.0° and normal joint-line orientation. The hip pain was gone immediately after the surgery, and the patient had no signs of ischiofemoral impingement or hip pain at last follow-up 12 months after closed wedge high tibial osteotomy. Conclusions Frontal realignment osteotomy around the knee can create problems at adjacent joints. Overvalgization of the proximal tibia made the patient compensate by hyperadduction of the hip to enable full foot sole contact with the floor. Hyperadduction of the hip decreased the ischiofemoral space, leading to severe impingement. Therefore, meticulous planning of osteotomies is important not to produce unphysiological situations or unwanted negative effects at the level of an adjacent joint.
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spelling doaj.art-9f5bb259e0a440e5920b0439fca5beff2022-12-22T04:11:58ZengBMCJournal of Medical Case Reports1752-19472022-02-011611410.1186/s13256-022-03257-2Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case reportChristian Konrads0Sufian S. Ahmad1Tina Histing2Maher Ibrahim3Department for Trauma and Reconstructive Surgery, BG Klinik, University of TübingenDepartment for Trauma and Reconstructive Surgery, BG Klinik, University of TübingenDepartment for Trauma and Reconstructive Surgery, BG Klinik, University of TübingenDepartment of Orthopaedic Surgery, Nyon HospitalAbstract Background Open wedge high tibial osteotomy is a standard procedure for frontal realignment. It is indicated in varus knee with reduced mechanical medial proximal tibia angle. Overcorrection producing a mechanical medial proximal tibia angle out of the normal range (85–90°) is not recommended because this would lead to unphysiological joint-line orientation. Osteotomies around the knee also influence the adjacent ankle and hip joints. For the hip, it is known that frontal alignment of the leg influences the ischiofemoral space. A decreased ischiofemoral space can lead to painful impingement between the ischial bone and the lesser trochanter. Case presentation A 53-year-old German woman presented with severe ischiofemoral impingement symptoms and valgus malalignment of the left leg after open wedge high tibial osteotomy, which was indicated and performed by an orthopedic surgeon with intention to treat medial knee pain due to degenerative arthritis of the medial compartment years after medial meniscectomy. The mechanical medial proximal tibia angle was 100.5°. We performed closed wedge high tibial osteotomy producing a mechanical medial proximal tibia angle of 90.0° and normal joint-line orientation. The hip pain was gone immediately after the surgery, and the patient had no signs of ischiofemoral impingement or hip pain at last follow-up 12 months after closed wedge high tibial osteotomy. Conclusions Frontal realignment osteotomy around the knee can create problems at adjacent joints. Overvalgization of the proximal tibia made the patient compensate by hyperadduction of the hip to enable full foot sole contact with the floor. Hyperadduction of the hip decreased the ischiofemoral space, leading to severe impingement. Therefore, meticulous planning of osteotomies is important not to produce unphysiological situations or unwanted negative effects at the level of an adjacent joint.https://doi.org/10.1186/s13256-022-03257-2HipKneeMalalignmentRealignmentVarusValgus
spellingShingle Christian Konrads
Sufian S. Ahmad
Tina Histing
Maher Ibrahim
Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case report
Journal of Medical Case Reports
Hip
Knee
Malalignment
Realignment
Varus
Valgus
title Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case report
title_full Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case report
title_fullStr Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case report
title_full_unstemmed Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case report
title_short Iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization: a case report
title_sort iatrogenic ischiofemoral impingement due to high tibial osteotomy with overvalgization a case report
topic Hip
Knee
Malalignment
Realignment
Varus
Valgus
url https://doi.org/10.1186/s13256-022-03257-2
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AT tinahisting iatrogenicischiofemoralimpingementduetohightibialosteotomywithovervalgizationacasereport
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