Magnitude of Change in Leg Length and Clinical Impact Following Medial Unicompartmental Knee Arthroplasty
Copyright © 2023 Elsevier Inc. All rights reserved..
BACKGROUND: Change in leg length and leg-length discrepancy (LLD) are common concerns among patients undergoing medial unicompartmental knee arthroplasty (UKA). This study aimed to quantify the magnitude of leg-length change, prevalence of postoperative LLD, and their clinical implications following medial UKA.
METHODS: Leg length and mechanical hip-knee-ankle angle (mHKA) were retrospectively measured in 332 patients following unilateral robotic-arm assisted medial UKA for medial compartment osteoarthritis, using calibrated long-leg radiographs. The Knee Injury and Osteoarthritis Otcome Score for Joint Replacement and patient satisfaction were analyzed to assess impact of leg-length change and LLD on outcomes.
RESULTS: Following medial UKA, median leg-length change was 2.0 mm (interquartile range, -1.0 to 5.0 mm; P < .001) with a mean correction in mHKA of 4.4° ± 2.7 (P < .001). A total of 158 patients (48%) had a leg-length increase by 0 to 5 mm, 64 (19%) by 6 to 10 mm, and 11 (3%) by >10 mm. Leg-length change was positively correlated with mHKA correction (R = 0.44, P < .001). Postoperatively, moderate (5 to 10 mm) and substantial LLD (≥10 mm) were present in 49% and 17% of patients, respectively. Four-year Knee Injury and Osteoarthritis Outcome Score for Joint Replacement were comparable between patients with and without substantial postoperative LLD (P = .976). Proportions of satisfied patients were similar between groups (P = .687).
CONCLUSION: Following medial UKA, the majority of patients had a moderate increase in leg length, the magnitude of which was positively correlated to the correction in mechanical alignment. Postoperative substantial LLD was not uncommon (17% prevalence); however, it had no significant impact on patient-reported outcomes or satisfaction at 4 years follow-up.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 2023 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:39 |
|---|---|
| Enthalten in: |
The Journal of arthroplasty - 39(2023), 1 vom: 01. Jan., Seite 68-75 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Bayoumi, Tarik [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Journal Article |
|---|
| Anmerkungen: |
Date Completed 04.12.2023 Date Revised 04.12.2023 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1016/j.arth.2023.07.013 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM359795250 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM359795250 | ||
| 003 | DE-627 | ||
| 005 | 20231226081635.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.arth.2023.07.013 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1199.xml |
| 035 | |a (DE-627)NLM359795250 | ||
| 035 | |a (NLM)37479193 | ||
| 035 | |a (PII)S0883-5403(23)00759-3 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Bayoumi, Tarik |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Magnitude of Change in Leg Length and Clinical Impact Following Medial Unicompartmental Knee Arthroplasty |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 04.12.2023 | ||
| 500 | |a Date Revised 04.12.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2023 Elsevier Inc. All rights reserved. | ||
| 520 | |a BACKGROUND: Change in leg length and leg-length discrepancy (LLD) are common concerns among patients undergoing medial unicompartmental knee arthroplasty (UKA). This study aimed to quantify the magnitude of leg-length change, prevalence of postoperative LLD, and their clinical implications following medial UKA | ||
| 520 | |a METHODS: Leg length and mechanical hip-knee-ankle angle (mHKA) were retrospectively measured in 332 patients following unilateral robotic-arm assisted medial UKA for medial compartment osteoarthritis, using calibrated long-leg radiographs. The Knee Injury and Osteoarthritis Otcome Score for Joint Replacement and patient satisfaction were analyzed to assess impact of leg-length change and LLD on outcomes | ||
| 520 | |a RESULTS: Following medial UKA, median leg-length change was 2.0 mm (interquartile range, -1.0 to 5.0 mm; P < .001) with a mean correction in mHKA of 4.4° ± 2.7 (P < .001). A total of 158 patients (48%) had a leg-length increase by 0 to 5 mm, 64 (19%) by 6 to 10 mm, and 11 (3%) by >10 mm. Leg-length change was positively correlated with mHKA correction (R = 0.44, P < .001). Postoperatively, moderate (5 to 10 mm) and substantial LLD (≥10 mm) were present in 49% and 17% of patients, respectively. Four-year Knee Injury and Osteoarthritis Outcome Score for Joint Replacement were comparable between patients with and without substantial postoperative LLD (P = .976). Proportions of satisfied patients were similar between groups (P = .687) | ||
| 520 | |a CONCLUSION: Following medial UKA, the majority of patients had a moderate increase in leg length, the magnitude of which was positively correlated to the correction in mechanical alignment. Postoperative substantial LLD was not uncommon (17% prevalence); however, it had no significant impact on patient-reported outcomes or satisfaction at 4 years follow-up | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a knee arthroplasty | |
| 650 | 4 | |a leg length | |
| 650 | 4 | |a patient-reported outcomes | |
| 650 | 4 | |a robot-assisted surgery | |
| 650 | 4 | |a unicompartmental knee arthroplasty | |
| 700 | 1 | |a Ten Noever de Brauw, Gaby V |e verfasserin |4 aut | |
| 700 | 1 | |a Ruderman, Lindsey V |e verfasserin |4 aut | |
| 700 | 1 | |a van der List, Jelle P |e verfasserin |4 aut | |
| 700 | 1 | |a Kerkhoffs, Gino M M J |e verfasserin |4 aut | |
| 700 | 1 | |a Zuiderbaan, Hendrik A |e verfasserin |4 aut | |
| 700 | 1 | |a Pearle, Andrew D |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The Journal of arthroplasty |d 1995 |g 39(2023), 1 vom: 01. Jan., Seite 68-75 |w (DE-627)NLM012629375 |x 1532-8406 |7 nnns |
| 773 | 1 | 8 | |g volume:39 |g year:2023 |g number:1 |g day:01 |g month:01 |g pages:68-75 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.arth.2023.07.013 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 39 |j 2023 |e 1 |b 01 |c 01 |h 68-75 | ||