Home » 3.5mm Locking Bone Plates » Eight Plates

Eight Plates Specification, Uses, Sizes & Surgical Instruments.

3.5 mm Eight Plates

Guided growth using Eight Plates are commonly used for correction of angular limb deformities in growing children. The principle is of tethering at the physeal periphery while enabling growth in the rest of the physis. The method is also applied for epiphysiodesis to correct limb-length discrepancy.

The Guided Growth Eight Plates System acts like a flexible hinge and it can temporarily inhibit bone growth in the area where plates and screws are applied.

By tethering only one side of the physis (hemiepiphysiodesis), bone growth is not inhibited in the remaining areas of the growth plate, providing the potential to redirect the growth of long bones to gradually correct angular deformities of lower limbs.

By tethering two opposite sides of the same physis the longitudinal bone growth is temporarily halted, providing the potential to correct limb length discrepancies.

Eight Plates Specification

  • Plates have 2 holes.
  • Choice of 3 different lengths 12 mm, 16 mm and 20 mm.
  • Plate holes accept 3.5 mm Cortical screws or 4 mm cancellous screws
  • Dedicated for gradually correcting deformities of long bones in growing children
  • Early weight bearing as tolerated by the patient and under surgeon discretion
  • Pre-contoured plate to match anatomical shape.
  • Available in both Titanium and Stainless steel.
  • locking plate increases construct stability, decreases risk of screw back-out and subsequent loss of reduction. It also reduces the need for precise anatomic plate contouring and minimizes the risk of stripped screw holes.
  • A complete Instruments Set is available for Eight Plates. General Instruments are available for this plate such as Plate Bending Press, Plate Holding Forceps, Plate Bending Pliers, Bone Holding Forceps, Bone Elevators, Bone Cutter, Bone Nibbler, Depth Gauge, Sleeve, Screw Driver, Trocar Sleeve etc.

Eight Plates Uses

Eight Plates are used for control and correction of angular deformities like genu valgum or varus by a performing epiphysiodesis.

Eight Plates serves as a tension band and restores the physiological axis. The tension band plate, with screws on either side of the physis, creates a non-rigid fulcrum outside of the physis, relatively lengthening the moment arm. Due to screw fixation, the risk of hardware extrusion is minimal.

Plates could be used and applied at the area of the knee, hip or ankle joints or to the area of the elbow and wrist.

Instruments for Eight Plates

3.5 mm Locking Instruments Set

A complete instruments set are also available for Eight Plates. Instruments can be modified according to the customer’s requirement with minimum quantity required. All these instruments can be used several times.

We are keeping wide range of  instruments items in this set to ensures that Doctors get almost all required items during. Below is list of items of this set.

  • Allen Key for Dill Bit Stopper
  • Countersink for 3.5/4 mm Screws
  • Depth Gauge Measuring range upto 60 mm
  • Double Drill Guide 3.5/2.5 mm
  • Double Drill Guide 4.0/2.5 mm
  • Drill Bit 2.5 mm x 125 mm, Quick Coupling
  • Drill Bit 2.8 mm x 165 mm with Stopper, Quick Coupling
  • Drill Bit 3.5 mm x 130 mm, Quick Coupling
  • Drill Guide 3.5 mm for Neutral and Load Position
  • Extraction Screw 3.5 mm
  • Guide Sleeve for 1.2 mm K Wires
  • Guide Wire Threaded Trocar 1.2 mm x 280 mm
  • Hohmann Retractor 12 mm
  • Insert Drill Sleeve 3.5/2.5 mm
  • Periosteal Elevator Fiber Handle 6 mm
  • Plate Bender
  • Plate Bending Template
  • Reduction Forcep Pointed Speed Lock 150 mm
  • Reduction Forcep Serrated Speed Lock 150 mm
  • Self Centering Bone Holding Forcep Speed Lock 190 mm
  • Screw Holding Forceps
  • Screw Driver Hexagonal, Holding Sleeve, 2.5 mm Tip
  • Screw Driver Torque for 3.5 mm Locking Screws
  • Screw Driver Quick Coupling for 3.5 mm Locking & 3.5 mm Cortical
  • Sharp Hook
  • T Handle Quick Coupling
  • Tap T Handle for 3.5 mm Cortical Screws
  • Tap T Handle for 4 mm Cancellous Screws
  • Threaded Drill Guide 3.5 for Drill Bit 2.8 mm
  • Trephine
  • Graphics Aluminum Box with Silicone Fittings

Do you have any questions for Eight Plates?
Please fill this form we will get in touch with you shortly.

Name(Required)
This field is for validation purposes and should be left unchanged.

Advantages of using locking plate for Eight Plates

  • Eight Plates is a locking plate so it does not have to precisely contact the underlying bone in all areas. When screws are tightened, they “lock” to the threaded screw holes of the plate, stabilizing the segments without pulling the bone to the plate. Locking screws make it impossible for screw insertion to alter the reduction. Nonlocking plate/screw systems require a precise adaptation of the plate to the underlying bone. Without this close contact, tightening of the screws will pull the bone segments toward the plate, resulting in loss of reduction and possibly the occlusal relationship
  • Locking plate/screw systems do not disrupt the underlying cortical bone perfusion as much as conventional plates, which compress the plate to the cortical bone.
  • Screws are unlikely to loosen from the plate. Similarly, if a bone graft is screwed to the plate, a locking head screw will not loosen during the phase of graft incorporation and healing. The possible advantage to this property of a locking plate/screw system is decreased risk of inflammatory complications due to hardware loosening.
  • Locking plate/screw systems have been shown to provide more stable fixation than conventional nonlocking plate/screw systems.

Locking Screw Technology

The heads of the locking screws contain male threads while the holes in the plates contain female threads. This allows the screw head to be threaded into the Eight Plates hole, locking the screw into the plate. This technical innovation provides the ability to create a fixedangle construct while using familiar plating techniques.

Locking Plate Technology

By using locking screws in a bone plate, a fixed-angle construct is created. In osteopenic bone or fractures with multiple fragments, secure bone purchase with conventional screws may be compromised. Locking screws do not rely on bone/plate compression to resist patient load, but function similarly to multiple small angled blade plates. In osteopenic bone or comminuted fractures, the ability to lock screws into a fixed-angle construct is imperative.

By combining locking screw holes with compression screw slots in the shaft, the plate can be used as both a locking device and a fracture compression device. If compression is desired, it must be achieved first by inserting the standard screws in the compression screw slots before inserting any locking screws.

More Products from 3.5 mm Locking Bone Plates

3.5 mm Locking Compression Plates

3.5 mm Locking Compression Plates

February 15, 2017/by VastOrtho
3.5 mm Locking Reconstruction Plates Straight

3.5 mm Locking Reconstruction Plates Straight

February 14, 2017/by VastOrtho
3.5 mm Locking Reconstruction Plates Curved

3.5 mm Locking Reconstruction Plates Curved

February 13, 2017/by VastOrtho
3.5 mm Locking Reconstruction Plates Straight Low Profile

3.5 mm Locking Reconstruction Plates Straight Low Profile

February 12, 2017/by VastOrtho
3.5 mm Locking Reconstruction Plates Curved Low Profile

3.5 mm Locking Reconstruction Plates Curved Low Profile

February 11, 2017/by VastOrtho
3.5 mm Locking One Third Tubular Plates

3.5 mm Locking One Third Tubular Plates

February 10, 2017/by VastOrtho
3.5 mm Locking T Plates 3 Head Holes

3.5 mm Locking T Plates 3 Head Holes

February 9, 2017/by VastOrtho
3.5 mm Locking T Plates Angle 3 Head Holes

3.5 mm Locking T Plates Angle 3 Head Holes

February 8, 2017/by VastOrtho
3.5 mm Locking T Plates 4 Head Holes

3.5 mm Locking T Plates 4 Head Holes

February 7, 2017/by VastOrtho
3.5 mm Locking Superior Anterior Clavicle Plates

3.5 mm Locking Superior Anterior Clavicle Plates

February 6, 2017/by VastOrtho
2.7 3.5 mm Locking Superior Anterior Clavicle Plates Lateral Extension

2.7/3.5 mm Locking Superior Anterior Clavicle Plates Lateral Extension

February 5, 2017/by VastOrtho
3.5 mm Locking Clavicle Hook Plates

3.5 mm Locking Clavicle Hook Plates

February 4, 2017/by VastOrtho
3.5 mm Locking Medial Distal Tibia Plates with Tab

3.5 mm Locking Medial Distal Tibia Plates with Tab

February 3, 2017/by VastOrtho
3.5 mm Locking Medial Distal Tibia Plates without Tab

3.5 mm Locking Medial Distal Tibia Plates without Tab

February 2, 2017/by VastOrtho
3.5 mm Locking Proximal Tibia Plates

3.5 mm Locking Proximal Tibia Plates

February 1, 2017/by VastOrtho
3.5 mm Locking Medial Proximal Tibia Plates

3.5 mm Locking Medial Proximal Tibia Plates

January 30, 2017/by VastOrtho
3.5 mm Locking Posteromedial Proximal Tibia Plates

3.5 mm Locking Posteromedial Proximal Tibia Plates

January 29, 2017/by VastOrtho
3.5 mm Locking Dorsolateral Distal Humerus Plates

3.5 mm Locking Dorsolateral Distal Humerus Plates

January 28, 2017/by VastOrtho
2.7 3.5 mm Locking Dorsolateral Distal Humerus Plates

2.7/3.5 mm Locking Dorsolateral Distal Humerus Plates

January 27, 2017/by VastOrtho
2.7 3.5 mm Locking Dorsolateral Distal Humerus Plates With Support

2.7/3.5 mm Locking Dorsolateral Distal Humerus Plates With Support

January 26, 2017/by VastOrtho
2.7 3.5 mm Locking Medial Distal Humerus Plates

2.7/3.5 mm Locking Medial Distal Humerus Plates

January 25, 2017/by VastOrtho
3.5 mm Locking Extra Articular Distal Humerus Plates

3.5 mm Locking Extra Articular Distal Humerus Plates

January 24, 2017/by VastOrtho
3.5 mm Locking Calcaneal Plates

3.5 mm Locking Calcaneal Plates

January 23, 2017/by VastOrtho
3.5 mm Locking Hook Plates

3.5 mm Locking Hook Plates

January 22, 2017/by VastOrtho
3.5 mm Locking Olecranon Plates

3.5 mm Locking Olecranon Plates

January 21, 2017/by VastOrtho
2.7 3.5 mm Locking Lateral Distal Fibula Plates

2.7/3.5 mm Locking Lateral Distal Fibula Plates

January 20, 2017/by VastOrtho
3.5 mm Locking Anterolateral Distal Tibia Plates

3.5 mm Locking Anterolateral Distal Tibia Plates

January 19, 2017/by VastOrtho
2.7 3.5 mm Locking Wrist Fusion Plates

2.7/3.5 mm Locking Wrist Fusion Plates

January 18, 2017/by VastOrtho
3.5 mm Locking Pediatric Hip Plates

3.5 mm Locking Pediatric Hip Plates

January 17, 2017/by VastOrtho
3.5 mm Locking Pilon Plates

3.5 mm Locking Pilon Plates

January 16, 2017/by VastOrtho
3.5 mm Eight Plates

Eight Plates

January 15, 2017/by VastOrtho
3.5 mm Locking LCP Plates

3.5 mm Locking LCP Plates

January 14, 2017/by VastOrtho
3.5 mm Locking Reconstruction Plates

3.5 mm Locking Reconstruction Plates

January 13, 2017/by VastOrtho
3.5 mm Locking T Plates

3.5 mm Locking T Plates

January 12, 2017/by VastOrtho
3.5 mm Locking Clavicle Plates

3.5 mm Locking Clavicle Plates

January 11, 2017/by VastOrtho
3.5 mm Locking Medial Distal Tibia Plates

3.5 mm Locking Medial Distal Tibia Plates

January 10, 2017/by VastOrtho
3.5 mm Locking Proximal Humerus Plate

3.5 mm Locking Proximal Humerus Plates

January 8, 2017/by VastOrtho
3.5 mm Locking Distal Humerus Plates

3.5 mm Locking Distal Humerus Plates

January 7, 2017/by VastOrtho

Screws available for Eight Plates

3.5 mm Cortical Screws

3.5 mm Cortical Screws available lengths are 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm, 46mm, 48mm, 50mm, 52mm, 54mm, 56mm, 58mm, 60mm, 65mm, 70mm, 75mm, and 80mm.

4 mm Cancellous Screws

4 mm Cancellous Screws available lengths are 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm, 46mm, 48mm, 50mm, 52mm, 54mm, 56mm, 58mm, 60mm, 65mm, 70mm, 75mm, and 80mm.

These Screws are made from pure Titanium and SS 316L. Any additional length sizes of these screws will be made on demand.

Use of the Eight Plate for angular correction of knee deformities due to idiopathic and pathologic physis: initiating treatment according to etiology

Purpose
Angular deformities of the knee resulting from idiopathic, congenital, or acquired causes are commonly encountered in pediatric orthopedics. Whereas physiological deformities should be treated expectantly, the remaining often progress enough to warrant operative treatment, despite attempted bracing. Historical methods of surgical treatment (e.g., epiphysiodesis and stapling) have yielded to the increasingly popular method of reversible guided growth using the Eight Plate.

Methods
We studied 58 patients with knee angular deformities managed with eight-Plate guided growth. All etiologies except physiological deformities and those with very slow growth rate were included. Each patient was under appropriate medical management during the entire duration of treatment and after plate removal.

Results
In the dysplasia/syndrome group, we noted complete correction in 22 patients (78.5%), partial correction in 5 (17.9%), and no correction in 1 patient (3.6%). All cases of idiopathic deformities resolved. Patients with osteochondral dysplasias and genetic syndromes underwent earlier intervention and slower correction than those with idiopathic genu varum or valgum. The time difference in reaching a neutral mechanical axis between the two groups (11 months in idiopathic versus 18 months in pathological physis) could be explained by a significant difference in growth speeds (P = 0.003).

Conclusion
Results indicate that early intervention is advisable for patients with osteochondral dysplasias/syndromes as subsequent correction takes longer. If rebound growth causing recurrent deformity occurs, guided growth can be safely repeated. Additionally, complications reported with other techniques such as hardware failure, physeal violation by the implant, premature physeal closure, and overcorrection were not reported while using the Eight Plate.

Eight Plates Contraindications

Contraindications may be qualified or total, and need to be taken into consideration when evaluating the prognosis in each case. The physician’s education, training and professional judgement must be relied upon to choose the most appropriate device and treatment. Conditions presenting an increased risk of failure include:

  • Any active or suspected latent infection or marked local inflammation in or about the affected area.
  • Compromised vascularity that would inhibit adequate blood supply to the fracture or the operative site.
  • Bone stock compromised by disease, infection or prior implantation that can not provide adequate support and/or fixation of the devices.
  • Material sensitivity, documented or suspected.
  • Obesity. An overweight or obese patient can produce loads on the implant that can lead to failure of the fixation of the device or to
    failure of the device itself.
  • Patients having inadequate tissue coverage over the operative site.
  • Implant utilization that would interfere with anatomical structures or physiological performance.
  • Any mental or neuromuscular disorder which would create an unacceptable risk of fixation failure or complications in postoperative care.
  • Other medical or surgical conditions which would preclude the potential benefit of surgery.
  • All associated diseases which could endanger the function and success of the Eight Plates.

Warnings and Precautionary for Eight Plates

Before using Eight Plates, the surgeon and ancillary staff should study the safety information in these instructions, as well as any product-specific information in the product description, surgical procedures and/or brochures.

Plates are made from medical grade materials and are designed, constructed and produced with utmost care. These quality assure best working results provided they are used in the proper manner. Therefore, the following instructions for use and safety recommendations must be observed.

Improper use of Plates can lead to damage to the tissue, premature wear, destruction of the instruments and injury to the operator, patients or other persons.

It is vital for the operating surgeon to take an active role in the medical management of their patients. The surgeon should thoroughly understand all aspects of the surgical procedure and instruments including their limitations. Care in appropriate selection and proper use of surgical instruments is the responsibility of the surgeon and the surgical team. Adequate surgical training should be completed before use of  Eight Plates.

Factors which could impair the success of the operation:

  • Allergies to implanted materials.
  • Localized bone tumours.
  • Osteoporosis or osteomalacia.
  • System disease and metabolic disturbances.
  • Alcohol and drug abuse.
  • Physical activities involving excessive shocks, whereby the implant is exposed to blows and/or excessive loading.
  • Patients who are mentally unable to understand and comply with the doctor’s instructions.
  • Poor general health.

Possible Adverse Effects

The following adverse effects are the most common resulting from implantation:

  • Loosening of the Eight Plates, which may result from cyclic loading of the fixation site and/or tissue reaction of the implant.
  • Early and late infection.
  • Further bone fracture resulting from unusual stress or weakened bone substance.
  • Temporary or chronic neural damage resulting from pressure or hematomata.
  • Wound hematomas and delayed wound healing.
  • Vascular disease including venal thrombosis, pulmonary embolism and cardiac arrest.
  • Heterotopic ossification.
  • Pain and discomfort due to presence of the Implants.
  • Mechanical failure of the implant, including bending, loosening or breakage.
  • Migration of implant resulting in injury.

Preoperative Planning for Eight Plates

The operating planning is carried out following a thorough clinical evaluation of the patient, Also, x-rays must be taken to allow a clear indication of the bony anatomy and associated deformities. At the time of the operation, the corresponding implantation instruments in addition to a complete set of Eight Plates must be available.

The clinician should discuss with the patient the possible risks and complications associated with the use of Implants. It is important to determine pre-operatively whether the patient is allergic to any of the implant materials. Also, the patient needs to be informed that the performance of the device cannot be guaranteed as complications can affect the life expectancy of the device.

Eight Plates Precautions

  • Confirm functionality of instruments and check for wear during reprocessing. Replace worn or damaged instruments prior to use.
  • It is recommended to use the instruments identified for this screw.
  • Handle devices with care and dispose worn bone cutting instruments in a sharps container.
  • Always irrigate and apply suction for removal of debris potentially generated during implantation or removal.

Eight Plates Warnings

  • Eight Plates can break during use (when subjected to excessive forces). While the surgeon must make the final decision on removal of the broken part based on associated risk in doing so, we recommend that whenever possible and practical for the individual patient, the broken part should be removed. Be aware that implants are not as strong as native bone. Implants subjected to substantial loads may fail.
  • Instruments, screws and cut plates may have sharp edges or moving joints that may pinch or tear user’s glove or skin.
  • Take care to remove all fragments that are not fixated during the surgery.
  • While the surgeon must make the final decision on implant removal, we recommend that whenever possible and practical for the individual patient, fixation devices should be removed once their service as an aid to healing is accomplished. Implant removal should be followed by adequate post-operative management to avoid refracture.

Eight Plates General Adverse Events

As with all major surgical procedures, risks, side effects and adverse events can occur. While many possible reactions may occur, some of the most common include: Problems resulting from anesthesia and patient positioning (e.g. nausea, vomiting, dental injuries, neurological impairments, etc.), thrombosis, embolism, infection, nerve and/or tooth root damage or injury of other critical structures including blood vessels, excessive bleeding, damage to soft tissues incl. swelling, abnormal scar formation, functional impairment of the musculoskeletal system, pain, discomfort or abnormal sensation due to the presence of the device, allergy or hypersensitivity reactions, side effects associated with hardware prominence, loosening, bending, or breakage of the device, mal-union, non-union or delayed union which may lead to breakage of the implant, reoperation.

Instruments

Bone Plates

Other Implants

Bone Screws

© Vast Ortho: Orthopedic Implants Manufacturers
First Floor, Khasra No. 104/14 | B-Block, Sant Nagar, Burari | Delhi-110084, INDIA

3.5 mm Locking LCP Plates3.5 mm Locking LCP Plates3.5 mm Locking Pilon Plates3.5 mm Locking Pilon Plates
WhatsApp Chat