Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty
Introduction Unicompartmental knee arthroplasty (UKA) is an effective surgical procedure used in patients with gonarthrosis with a part of the knee being severely affected. Insufficient or excessive correction of the lower limb axis can cause a poor outcome of partial arthroplasty. The objective...
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Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics
2025-08-01
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| Series: | Гений oртопедии |
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| author | Nikolay N. Kornilov Dmitriy V. Chugaev Pavel P. Ivanov Magomed Sh. Magomedov Taras A. Kulyaba Alexey S. Phil |
| author_facet | Nikolay N. Kornilov Dmitriy V. Chugaev Pavel P. Ivanov Magomed Sh. Magomedov Taras A. Kulyaba Alexey S. Phil |
| author_sort | Nikolay N. Kornilov |
| collection | DOAJ |
| description | Introduction Unicompartmental knee arthroplasty (UKA) is an effective surgical procedure used in patients
with gonarthrosis with a part of the knee being severely affected. Insufficient or excessive correction
of the lower limb axis can cause a poor outcome of partial arthroplasty.
The objective was to evaluate ways that would help prevent insufficient or excessive correction of the lower
limb axis with UKA and demonstrate techniques preventing and solving the surgical problem using a clinical
example.
Material and methods A patient presented with valgus deformity at the knee level, knee pain and inability
to walk without support was seen at the Vreden National Medical Research Centre for Traumatology
and Orthopedics. The patient underwent UKA three years ago. The radiographs showed sparing resections
of the femur and tibia, the working surface of the polyethylene liner/tibial implant component being 5 mm
proximally to the articular surface of the lateral condyle of the tibia.
Results and discussion The limb axis was corrected by 6° during revision arthroplasty. The patient had
no limping at one year and the result of the operation was rated as excellent measuring 45 OKS scores.
The authors reviewed prerequisites of the complication in question and ways to prevent it. Iatrogenic causes
primarily associated with surgical technique are reviewed.
Conclusion Inadequate mechanical alignment is characterized by a heterogeneous identity in UKA and can
be caused by ineffective preoperative planning and specific anatomy of the patient, intraopereative technical
failures. |
| format | Article |
| id | doaj-art-ecd883c5f3e048b2a0392d6bd132a1a0 |
| institution | Kabale University |
| issn | 1028-4427 2542-131X |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics |
| record_format | Article |
| series | Гений oртопедии |
| spelling | doaj-art-ecd883c5f3e048b2a0392d6bd132a1a02025-08-20T06:46:16ZengRussian Ilizarov Scientific Center for Restorative Traumatology and OrthopaedicsГений oртопедии1028-44272542-131X2025-08-0131451051910.18019/1028-4427-2025-31-4-510-519Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplastyNikolay N. Kornilov0https://orcid.org/0000-0002-6398-2377Dmitriy V. Chugaev1https://orcid.org/0000-0001-5127-5088Pavel P. Ivanov2Magomed Sh. Magomedov3Taras A. Kulyaba4Alexey S. Phil5Vreden National Medical Research Centre for Traumatology and Orthopedics, St. Petersburg, Russian FederationVreden National Medical Research Centre for Traumatology and Orthopedics, St. Petersburg, Russian FederationVreden National Medical Research Centre for Traumatology and Orthopedics, St. Petersburg, Russian FederationVreden National Medical Research Centre for Traumatology and Orthopedics, St. Petersburg, Russian FederationVreden National Medical Research Centre for Traumatology and Orthopedics, St. Petersburg, Russian FederationVreden National Medical Research Centre for Traumatology and Orthopedics, St. Petersburg, Russian FederationIntroduction Unicompartmental knee arthroplasty (UKA) is an effective surgical procedure used in patients with gonarthrosis with a part of the knee being severely affected. Insufficient or excessive correction of the lower limb axis can cause a poor outcome of partial arthroplasty. The objective was to evaluate ways that would help prevent insufficient or excessive correction of the lower limb axis with UKA and demonstrate techniques preventing and solving the surgical problem using a clinical example. Material and methods A patient presented with valgus deformity at the knee level, knee pain and inability to walk without support was seen at the Vreden National Medical Research Centre for Traumatology and Orthopedics. The patient underwent UKA three years ago. The radiographs showed sparing resections of the femur and tibia, the working surface of the polyethylene liner/tibial implant component being 5 mm proximally to the articular surface of the lateral condyle of the tibia. Results and discussion The limb axis was corrected by 6° during revision arthroplasty. The patient had no limping at one year and the result of the operation was rated as excellent measuring 45 OKS scores. The authors reviewed prerequisites of the complication in question and ways to prevent it. Iatrogenic causes primarily associated with surgical technique are reviewed. Conclusion Inadequate mechanical alignment is characterized by a heterogeneous identity in UKA and can be caused by ineffective preoperative planning and specific anatomy of the patient, intraopereative technical failures.knee jointunicompartmental knee arthroplastyukapartial arthroplastyovercorrected limb axiscomplications of total joint replacement |
| spellingShingle | Nikolay N. Kornilov Dmitriy V. Chugaev Pavel P. Ivanov Magomed Sh. Magomedov Taras A. Kulyaba Alexey S. Phil Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty Гений oртопедии knee joint unicompartmental knee arthroplasty uka partial arthroplasty overcorrected limb axis complications of total joint replacement |
| title | Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty |
| title_full | Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty |
| title_fullStr | Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty |
| title_full_unstemmed | Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty |
| title_short | Overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty |
| title_sort | overcorrected lower limb axis as an outcome of unicompartmental knee arthroplasty |
| topic | knee joint unicompartmental knee arthroplasty uka partial arthroplasty overcorrected limb axis complications of total joint replacement |
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