External Fixator Instruments Set-II – 75-Piece 11mm Carbon Fiber Large Fragment External Fixation System

The External Fixator Instruments Set-II from Peak Surgicals (SKU: PS-EFIS-00132) is a 75-piece large fragment external fixation system built entirely around the 11mm carbon fiber rod architecture, designed for construction of maximum-stiffness unilateral and bilateral external fixator frames for femoral shaft fractures, pelvic ring injuries, and other high-load large bone fixation requiring the rigidity of the 11mm rod diameter throughout the construct. The set includes 20 pins — cortical pins in three configurations (5×110mm, 5×130mm, 5×150mm, 6×130mm) and cancellous pins (6×150mm) — 20 carbon fiber rods in the 11mm diameter across five lengths (150–350mm, 4 rods each), 12 Pin-Rod Couplings Ø11/5–6mm, 9 Rod-Rod Couplings Ø11/11mm, 2 T Clamps Ø11/5mm, drill bits in 3.8mm and 4.8mm, drill sleeves in 4/5/6mm, screwdrivers 5mm and 6mm, Open Wrenches 10mm ×2, and a Pressurizer, all in an aluminium box. It is used by orthopedic and trauma surgeons performing external fixation where the entire construct — from the first pin-rod connection through all rod-to-rod connections — requires 11mm rod stiffness without any 8mm rod component.

11mm-Only Rod Architecture: Why This Set Differs from Set-III and the Base Set

The External Fixator Set-II is the only one of Peak Surgicals' three large fragment linear external fixation sets configured exclusively around the 11mm carbon fiber rod diameter — there are no 8mm rods and no 8mm couplings in this set. Set-III (76 pieces, $1,650.00) and the External Fixator Instruments Set (86 pieces, $1,650.00) both include dual rod systems with 8mm rods for tibial and humeral fixation alongside 11mm rods for femoral and pelvic fixation. Set-II instead provides 20 rods all in 11mm across five lengths, 12 Pin-Rod Couplings sized exclusively for 5–6mm pins into the 11mm rod, and 9 Rod-Rod Couplings Ø11/11mm (more than the 4 included in Set-III), making it the highest-stiffness configuration in the range. Centres whose trauma workload is concentrated on femoral shaft fractures, pelvic ring injuries, and bilateral femoral fixation — cases where 11mm rod rigidity is the standard choice at every level — will find this set's 11mm-only architecture efficient. Centres treating a mixed caseload of tibial and femoral fractures requiring 8mm tibial fixation alongside 11mm femoral fixation will require Set-III or the Base Set instead.

Pin Inventory: 5mm and 6mm Cortical and Cancellous Pins for Femoral and Pelvic Fixation

The 20 pins in this set are configured for the 5mm and 6mm pin diameters used in femoral, pelvic, and humeral fixation, with no 4mm pins — reflecting the set's focus on large bone fixation where higher pin diameter provides greater pullout resistance. Cortical Pins 5×110mm (×4) are suited for humeral shaft fixation in average adult anatomy and for smaller femoral cortices. Cortical Pins 5×130mm (×6) provide the standard femoral shaft cortical pin length used in mid-diaphyseal fixation. Cortical Pins 5×150mm (×2) extend the pin length for deeper transcortical penetration in large femoral or pelvic constructs. Cortical Pins 6×130mm (×6) provide the 6mm diameter for maximum cortical purchase in large femoral diaphyses. Cancellous Pins 6×150mm (×2) provide coarse-thread cancellous purchase in the iliac wing, distal femoral metaphysis, and proximal tibial metaphysis. Drill Bits 3.8×200mm (×2) prepare the pilot hole for 5mm pins; Drill Bits 4.8×200mm (×2) prepare for 6mm pins. Drill Sleeves 4mm, 5mm, and 6mm protect soft tissue during drilling in the thigh and around the pelvis.

Coupling System: 12 Pin-Rod and 9 Rod-Rod Couplings for 11mm Frames

The coupling inventory is calibrated for complex 11mm frame configurations. The 12 Pin-Rod Couplings Ø11/5–6mm (the same count as in Set-III) accept 5mm or 6mm pins into the 11mm rod at any position and angle along both the rod and pin axes, providing the three-dimensional frame geometry adjustment needed after all pins are in the bone. The 9 Rod-Rod Couplings Ø11/11mm — more than double the 4 included in Set-III — support more complex multi-rod 11mm frame configurations: double-bar femoral fixation (two parallel 11mm rods connected by rod-rod couplings for maximum bending stiffness in the sagittal or coronal plane), bilateral femoral fixation where a transverse rod-rod coupling connects the left and right femoral frames, and pelvic anterior frame designs where multiple 11mm rod segments are assembled into an L- or C-shaped pelvic frame. The 2 T Clamps Ø11/5mm allow 5mm pins to be connected perpendicularly to the 11mm rod, enabling delta frame configurations for pelvic fixation and additional transverse pin attachment at complex metaphyseal or periarticular levels. The Pressurizer and Open Wrenches 10mm ×2 provide consistent coupling locking throughout the assembly.

Carbon Fiber Rods: 11mm Diameter in Five Lengths from 150mm to 350mm

The 20 carbon fiber rods in this set are all 11mm diameter — the maximum rod stiffness in the Peak Surgicals external fixation range — across five lengths: 150mm (×4), 200mm (×4), 250mm (×4), 300mm (×4), and 350mm (×4). The 4-rod-per-length inventory (versus 2 rods per length for the 11mm rods in Set-III) supports bilateral constructs where two frames are assembled simultaneously — for example, bilateral femoral fixation in a multiply injured patient, where both left and right femoral frames require the same rod lengths and a transverse connecting rod between the two frames. The maximum rod length of 350mm accommodates the widest inter-pin distances encountered in femoral shaft fixation, where the proximal and distal pin clusters must be placed well away from the fracture zone on each side. All 11mm rods are carbon fiber composite and fully radiolucent, allowing plain radiographic fracture monitoring through the assembled frame throughout the fixation period without metallic rod artefact obscuring the fracture site or the pin-bone interfaces.

CE Mark, ISO 13485, and FDA Certification for External Fixation Procurement

The External Fixator Instruments Set-II is manufactured under CE Mark, ISO 13485, and FDA compliant quality standards. ISO 13485 certification confirms Peak Surgicals operates a documented quality management system covering design control, material traceability, and production consistency for orthopedic implants and surgical instruments. CE Mark confirms conformity with European medical device regulations, and FDA compliance supports procurement for US-based hospitals, trauma centers, and orthopedic departments requiring verified regulatory documentation for large fragment external fixation system purchases.

Product Specifications

Frequently Asked Questions

What is the clinical advantage of using an 11mm-only rod system over a dual 8mm/11mm system?
The 11mm carbon fiber rod has greater cross-sectional area and bending stiffness than an 8mm rod, providing a stiffer external fixator construct that resists the larger bending moments generated at the femoral shaft and pelvic ring compared to tibial or humeral fixation levels. In femoral shaft fractures — where the large muscle mass of the thigh generates significant deforming forces on the external fixator frame — a single-bar unilateral 11mm frame or a double-bar bilateral 11mm frame provides the construct rigidity needed to maintain fracture alignment and resist cyclic loading during patient transfers and physiotherapy. Using the 11mm rod exclusively across a bilateral femoral fixation or a pelvic anterior frame eliminates any weaker elements in the construct: every rod-rod and pin-rod connection is at 11mm, maximising the rigidity of the assembled frame at every node. The 9 Rod-Rod Couplings Ø11/11mm in Set-II (more than in Set-III) support these complex multi-rod 11mm configurations.

How does this set differ from the External Fixator Instruments Set-III and the External Fixator Instruments Set also available from Peak Surgicals?
All three sets are large fragment external fixation systems with carbon fiber rods. Set-II (75 pieces, $1,540.00, SKU PS-EFIS-00132) uses exclusively 11mm rods (20 rods in 5 lengths) with no 8mm rod components. Set-III (76 pieces, $1,650.00) and the External Fixator Instruments Set (86 pieces, $1,650.00) both include dual 8mm and 11mm rod systems. The primary choice between them: Set-II for centres whose large fragment external fixation caseload is concentrated on high-load femoral and pelvic cases where 11mm rigidity is used throughout; Set-III or the Base Set for centres treating both tibial (8mm) and femoral (11mm) fractures who need both rod diameters. Set-II is also the lowest-priced of the three large fragment sets at $1,540.00.

Why does this set not include 4mm pins or 4×90mm cortical pins?
The 4mm cortical pins (4×90mm) used in Set-III and the Base Set are primarily sized for tibial shaft fixation in smaller adult anatomy and for humeral fixation in narrow-cortex bones. Set-II's pin inventory starts at 5mm diameter — the minimum for femoral shaft and pelvic fixation where higher pin pullout resistance is required. The absence of 4mm pins in Set-II is consistent with its 11mm-rod-only architecture: if 4mm pins were included, they would require Ø8/4mm or Ø11/4mm couplings that are not part of this set's coupling inventory. The 5mm and 6mm pins in Set-II match directly to the Ø11/5–6mm Pin-Rod Couplings that are the only coupling type in this set.

What is the role of the 9 Rod-Rod Couplings Ø11/11mm in this set?
The 9 Rod-Rod Couplings Ø11/11mm connect two 11mm rods at any relative angle and position along each rod, allowing the surgeon to assemble multi-rod frame configurations after all pins are in the bone. Common uses include double-bar unilateral femoral fixation (two parallel 11mm rods connected by rod-rod couplings to increase construct bending stiffness in the sagittal plane, where a single rod would be insufficient for the deforming forces of the thigh musculature); bilateral femoral fixation (a transverse 11mm rod connecting the medial aspects of the left and right femoral frame rods, creating a stable bilateral construct during damage control fixation of bilateral femoral fractures); and anterior pelvic frame construction (multiple 11mm rod segments assembled into an L- or C-shaped pelvic frame with rod-rod couplings at each corner of the frame). The 9-rod-rod-coupling count in Set-II supports these complex configurations more generously than the 4 rod-rod couplings in Set-III.

What certifications does this set carry?
The External Fixator Instruments Set-II is manufactured under CE Mark, ISO 13485, and FDA compliant quality standards. ISO 13485 certification confirms Peak Surgicals operates a documented quality management system covering design control, material traceability, and manufacturing consistency for orthopedic implants and instruments. CE Mark confirms conformity with European medical device regulations, and FDA compliance supports procurement for US hospitals, trauma centers, and orthopedic departments requiring verified regulatory documentation for large fragment external fixation purchases.