NCT06762171

Brief Summary

Evaluate the results of management of patients with patellofemoral and medial compartment knee osteoarthritis with open wedge high tibial osteotomy with or without arthroscopic partial lateral patellar facetectomy

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable knee-osteoarthritis

Timeline
4mo left

Started Dec 2024

Typical duration for not_applicable knee-osteoarthritis

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress80%
Dec 2024Nov 2026

Study Start

First participant enrolled

December 1, 2024

Completed
21 days until next milestone

First Submitted

Initial submission to the registry

December 22, 2024

Completed
16 days until next milestone

First Posted

Study publicly available on registry

January 7, 2025

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2025

Completed
1.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2026

Expected
Last Updated

January 7, 2025

Status Verified

December 1, 2024

Enrollment Period

6 months

First QC Date

December 22, 2024

Last Update Submit

December 31, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Knee injury and Osteoarthritis Outcome Score (KOOS)

    The KOOS's five patient-relevant dimensions are scored separately: Pain (nine items); Symptoms (seven items); ADL Function (17 items); Sport and Recreation Function (five items); Quality of Life (four items). A Likert scale is used and all items have five possible answer options scored from 0 (No problems) to 4 (Extreme problems) and each of the five scores is calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100representing no knee problems as common in orthopedic scales and generic measures. Scores between 0 and 100 represent the percentage of total possible score achieved.

    during the follow-up period for 2years (2 weeks, 4 weeks, 6 weeks, 6 months, 1 year, and 2 years postoperatively)

  • Kujala Score (Anterior Knee Pain Scale - AKPS)

    The Kujala Score or Anterior Knee Pain Scale (AKPS) is a 13-item self-report questionnaire that assesses subjective reactions to particular activities and symptoms that are known to correlate with anterior knee pain syndrome. The AKPS is graded on a scale of 0 to 100, with 100 being the highest possible score. Lower scores reflect greater pain and disability.

    during the follow-up period for 2 years (2 weeks, 4 weeks, 6 weeks, 6 months, 1 year, and 2 years postoperatively)

Study Arms (2)

Group (A)

ACTIVE COMPARATOR

The patients will undergo open wedge high tibial osteotomy with arthroscopic partial lateral patellar facetectomy.

Procedure: open wedge high tibial osteotomyProcedure: Arthroscopic partial lateral patellar facetectomy

Group (B)

ACTIVE COMPARATOR

The patients will undergo open wedge high tibial osteotomy without arthroscopic partial lateral patellar facetectomy.

Procedure: open wedge high tibial osteotomy

Interventions

All procedures will be performed based on the technique recommended by the AO international knee expert group. Biplanar osteotomy, which comprises osteotomies in the axial and frontal planes, will be performed in all cases. Ascending frontal osteotomy, leaving the tibial tuberosity on the distal fragment, will be also performed. All osteotomies will be performed without the use of additional bone grafts, and the opening of the osteotomy was maintained with a Tomofix plate (Orthomed-E Co., Egypt). Wound closure will be performed in layers.

Group (A)Group (B)

Diagnostic arthroscopy will be performed in all cases to assess Patellofemoral articular cartilage degeneration , assess the lateral compartment and exclude any other pathology. The knee is taken throughout a range of motion to directly visualize the impingement of the lateral patellar facet against the trochlea. Next, a radiofrequency probe is used to outline the area to be resected along the lateral patellar facet While maintaining the knee at 20 degrees of flexion, a 5.5-mm burr is introduced, and under arthroscopic visualization, the overhanging portion of the lateral patellar facet is carefully resected. Once the bony resection is complete, the knee is dynamically re-evaluated (through flexion and extension) for residual impingement and to assess for improvements in patellar mobility. Patellar tracking is assessed to verify that there is no catching in flexion and that patellar mobility is improved.

Group (A)

Eligibility Criteria

Age35 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Age 35-60years
  • Mild to moderate TFOA (G I-II-III) Kellgren-Lawrence (KL) scale (16)
  • Anterior knee pain (PFOA)
  • No involvement of the lateral compartment
  • range of motion of at least 120° flexion
  • Body mass index (BMI) \<30kg/m2
  • varus angle degree \<10°

You may not qualify if:

  • advanced case of TFOA (G VI KL scale), which requires total knee replacement.
  • flexion deformity ≥15°
  • inflammatory disease (such as rheumatoid arthritis).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of medicine, Sohag university

Sohag, Sohag Governorate, Egypt

RECRUITING

Related Publications (9)

  • Otsuki S, Murakami T, Okamoto Y, Nakagawa K, Okuno N, Wakama H, Neo M. Risk of patella baja after opening-wedge high tibial osteotomy. J Orthop Surg (Hong Kong). 2018 May-Aug;26(3):2309499018802484. doi: 10.1177/2309499018802484.

    PMID: 30295136BACKGROUND
  • El-Azab H, Glabgly P, Paul J, Imhoff AB, Hinterwimmer S. Patellar height and posterior tibial slope after open- and closed-wedge high tibial osteotomy: a radiological study on 100 patients. Am J Sports Med. 2010 Feb;38(2):323-9. doi: 10.1177/0363546509348050. Epub 2009 Dec 31.

    PMID: 20044496BACKGROUND
  • Loia MC, Vanni S, Rosso F, Bonasia DE, Bruzzone M, Dettoni F, Rossi R. High tibial osteotomy in varus knees: indications and limits. Joints. 2016 Aug 18;4(2):98-110. doi: 10.11138/jts/2016.4.2.098. eCollection 2016 Apr-Jun.

    PMID: 27602350BACKGROUND
  • Iijima H, Fukutani N, Isho T, Yamamoto Y, Hiraoka M, Miyanobu K, Jinnouchi M, Kaneda E, Aoyama T, Kuroki H, Matsuda S. Changes in clinical symptoms and functional disability in patients with coexisting patellofemoral and tibiofemoral osteoarthritis: a 1-year prospective cohort study. BMC Musculoskelet Disord. 2017 Mar 24;18(1):126. doi: 10.1186/s12891-017-1486-4.

    PMID: 28340623BACKGROUND
  • Iijima H, Fukutani N, Aoyama T, Fukumoto T, Uritani D, Kaneda E, Ota K, Kuroki H, Matsuda S. Clinical Impact of Coexisting Patellofemoral Osteoarthritis in Japanese Patients With Medial Knee Osteoarthritis. Arthritis Care Res (Hoboken). 2016 Apr;68(4):493-501. doi: 10.1002/acr.22691.

    PMID: 26315986BACKGROUND
  • Kim YM, Joo YB. Patellofemoral osteoarthritis. Knee Surg Relat Res. 2012 Dec;24(4):193-200. doi: 10.5792/ksrr.2012.24.4.193. Epub 2012 Nov 29.

    PMID: 23269956BACKGROUND
  • Kobayashi S, Pappas E, Fransen M, Refshauge K, Simic M. The prevalence of patellofemoral osteoarthritis: a systematic review and meta-analysis. Osteoarthritis Cartilage. 2016 Oct;24(10):1697-1707. doi: 10.1016/j.joca.2016.05.011. Epub 2016 May 14.

    PMID: 27188684BACKGROUND
  • Iwano T, Kurosawa H, Tokuyama H, Hoshikawa Y. Roentgenographic and clinical findings of patellofemoral osteoarthrosis. With special reference to its relationship to femorotibial osteoarthrosis and etiologic factors. Clin Orthop Relat Res. 1990 Mar;(252):190-7.

    PMID: 2302884BACKGROUND
  • Davies AP, Vince AS, Shepstone L, Donell ST, Glasgow MM. The radiologic prevalence of patellofemoral osteoarthritis. Clin Orthop Relat Res. 2002 Sep;(402):206-12. doi: 10.1097/00003086-200209000-00020.

    PMID: 12218486BACKGROUND

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Central Study Contacts

Ahmed Tarek Ahmed, Assistant lecturer

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant lecturer of Orthopaedic and Traumatology, Faculty of medicine, Sohag university

Study Record Dates

First Submitted

December 22, 2024

First Posted

January 7, 2025

Study Start

December 1, 2024

Primary Completion

June 1, 2025

Study Completion (Estimated)

November 1, 2026

Last Updated

January 7, 2025

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

Locations