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Comparison of Functional Results and Complications Between K-Wire Tension Band Fixation and Interosseous Suturing in Transverse Patellar Fractures: A Randomized Controlled Trial

2 novembre 2026 aggiornato da: Ain Shams University

Comparison of Functional Results and Complications Between K-Wire Tension Band Fixation and Interosseous Suturing in Transverse Patellar Fractures: A Randomized Controlled Trial.

A transverse patellar fracture is a break across the kneecap that can affect knee movement, walking, and daily activities. Surgery is often needed to restore the position of the broken bone and allow it to heal.

This study will compare two surgical techniques for treating transverse patellar fractures in adults: K-wire tension band wiring and transosseous suture fixation using No. 5 FiberWire. The purpose is to determine whether the two techniques differ in knee function, fracture healing, and the occurrence of complications.

Eligible adults with an acute, closed transverse patellar fracture will be randomly assigned to one of the two treatment groups. Participants will be followed for 12 months after surgery. Knee function will be assessed using the Bostman score, while other outcomes will include pain, knee range of motion, quadriceps muscle strength, fracture healing, and complications such as infection, hardware irritation, and the need for further surgery.

The findings may help improve understanding of the benefits and limitations of these two surgical techniques and support clinical decision-making for adults with transverse patellar fractures.

Panoramica dello studio

Stato

Attivo, non reclutante

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Transverse patellar fractures can disrupt the extensor mechanism of the knee and impair knee function. Surgical treatment aims to restore the anatomical alignment of the patella, provide sufficient stability for fracture healing, and facilitate the recovery of knee movement and quadriceps function.

K-wire tension band wiring is a commonly used fixation technique for patellar fractures. It uses Kirschner wires and a tension band construct to stabilize the fracture. However, complications such as hardware prominence, soft-tissue irritation, infection, and the need for subsequent implant removal may occur.

Transosseous suture fixation is an alternative technique that uses sutures passed through bone tunnels to stabilize the fracture. High-strength sutures, such as No. 5 FiberWire, may provide fixation without leaving prominent metallic implants. Nevertheless, the functional outcomes and complication profiles of this technique compared with conventional K-wire tension band wiring require further evaluation.

This randomized controlled trial will compare these two surgical techniques in adults undergoing operative treatment for acute, closed transverse patellar fractures. The study will assess postoperative knee function and recovery, fracture healing, pain, range of motion, quadriceps muscle strength, and treatment-related complications during follow-up.

The study is intended to provide comparative clinical evidence regarding functional recovery, fracture union, and complications associated with the two fixation methods. The findings may help inform surgical decision-making and contribute to the selection of an appropriate fixation technique for patients with transverse patellar fractures.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

30

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Cairo Governorate
      • Cairo, Cairo Governorate, Egitto, 11252
        • Ain Shams University Hospitals (Demerdash Hospital)

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Age ≥ 18 years.
  • Acute (less than 2 weeks) closed transverse patellar fracture (AO/OTA 34-C1 or similar).
  • Medically fit for surgery and anesthesia.
  • Willing and able to provide informed consent and comply with the study follow-up requirements.

Exclusion Criteria:

  • Age < 18 years.
  • Open patellar fractures.
  • Pathological fractures.
  • Non-transverse fracture patterns (e.g., polar or stellate fractures).
  • Previous ipsilateral knee surgery or significant knee arthritis.
  • Associated major lower-limb trauma (e.g., ipsilateral femoral or tibial fracture).
  • Neuromuscular disorders affecting the lower limb.
  • Severe systemic illness contraindicating surgery.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: K-wire Tension Band Wiring

K-wire tension band wiring for transverse patellar fracture fixation.

Surgical fixation of an acute transverse patellar fracture using Kirschner wires (K-wires) and a tension band construct to stabilize the fracture and maintain reduction during bone healing.

Comparatore attivo: Transosseous Suture Fixation

Transosseous suture fixation using No. 5 FiberWire for transverse patellar fracture fixation.

Surgical fixation of an acute transverse patellar fracture using transosseous bone tunnels and high-strength No. 5 FiberWire sutures to stabilize the fracture and maintain reduction during bone healing.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Functional Outcome Assessed Using the Böstman Patellar Fracture Score at 12 Months
Lasso di tempo: 12 months after surgery

Functional outcome will be assessed using the Böstman Patellar Fracture Score, a validated scoring system for evaluating functional recovery following patellar fractures. The scale ranges from 0 to 30 points, with a minimum score of 0 and a maximum score of 30. Higher scores indicate better functional outcomes, whereas lower scores indicate poorer functional recovery.

12 months after surgery

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Pain Severity Assessed Using the Visual Analog Scale (VAS)
Lasso di tempo: 2 weeks, 6 weeks, 3 months, 6 months, and 12 months after surgery.

Pain severity will be assessed using the Visual Analog Scale (VAS), a 10-cm scale ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate greater pain severity and worse outcomes, whereas lower scores indicate less pain and better outcomes.

2 weeks, 6 weeks, 3 months, 6 months, and 12 months after surgery.
Knee Range of Motion
Lasso di tempo: 2 weeks, 6 weeks, 3 months, 6 months, and 12 months after surgery.

Knee range of motion will be assessed by measuring active knee flexion and extension using a standard goniometer. Measurements will be recorded in degrees (°). Knee flexion ranges from 0° to 140°, with higher flexion values indicating greater knee mobility and better functional recovery. Knee extension is assessed by measuring the degree of extension deficit, where 0° indicates full extension and higher deficit values indicate worse outcomes.

2 weeks, 6 weeks, 3 months, 6 months, and 12 months after surgery.
Time to Fracture Union
Lasso di tempo: Up to 12 months after surgery.

Time to fracture union will be assessed in weeks from the date of surgery until radiographic evidence of fracture union is achieved. Fracture union will be defined by radiographic evidence of bridging bone across at least three of the four cortices on orthogonal radiographic views, in conjunction with clinical evidence of healing. The minimum value is 0 weeks. Higher values indicate a longer time to fracture union and therefore a worse outcome, whereas lower values indicate faster fracture healing and a better outcome.

Up to 12 months after surgery.
Incidence of Postoperative Complications
Lasso di tempo: From the date of surgery through 12 months postoperatively.

Postoperative complications will be assessed by recording the occurrence of any complications following surgery, including surgical site infection, wound complications, implant-related complications (such as K-wire migration, wire breakage, or fixation failure), loss of fracture reduction, nonunion, delayed union, symptomatic hardware, and reoperation. The outcome will be recorded as a binary variable: 0 = No postoperative complications and 1 = At least one postoperative complication. The minimum value is 0 and the maximum value is 1. Higher scores indicate the occurrence of postoperative complications and therefore worse outcomes.

From the date of surgery through 12 months postoperatively.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 aprile 2026

Completamento primario (Stimato)

30 aprile 2027

Completamento dello studio (Stimato)

30 aprile 2027

Date di iscrizione allo studio

Primo inviato

24 ottobre 2026

Primo inviato che soddisfa i criteri di controllo qualità

2 novembre 2026

Primo Inserito (Effettivo)

3 novembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

3 novembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

2 novembre 2026

Ultimo verificato

1 ottobre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • ASU-PATELLA FRACTURE -RCT-2026

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

Individual participant data (IPD) will not be shared with other researchers. The study data will be used for the purposes of the planned statistical analyses, thesis preparation, and scientific publication. Only aggregate, de-identified results will be reported in publications and presentations. This decision is intended to protect participant confidentiality and privacy.

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .