ORIF with Internal fixation and DHS for left intratronchatric left side
intertrochanteric femur fracture DHS dynamic hip screw ORIF fixation

This lateral view X-ray radiography demonstrates the postoperative results of open reduction internal fixation (ORIF) for a right-sided proximal femur fracture. The image shows a dynamic hip screw (DHS) system in situ, consisting of a large-diameter lag screw traversing the femoral neck into the femoral head, coupled with a side plate secured to the femoral shaft using multiple cortical screws. The hardware is positioned to stabilize an intertrochanteric fracture with subtrochanteric extension. The lateral projection allows for assessment of the sagittal alignment of the femur and the central placement of the lag screw within the femoral head. There are visible radiolucent lines indicating the original fracture planes between the intertrochanteric fragments and the femoral shaft. This imaging is characteristic of orthopedic trauma management in adult patients following a low-energy fall, illustrating the mechanical stabilization of extracapsular hip fractures to facilitate early mobilization and rehabilitation.

An anteroposterior (AP) X-ray of the pelvis and bilateral hips showing internal fixation of a right proximal femur fracture. The image captures the pelvic girdle, sacroiliac joints, and proximal femurs. On the right side, a Dynamic Hip Screw (DHS) system is visible, consisting of a large-diameter lag screw traversing the femoral neck into the femoral head, coupled with a lateral side plate. The plate is secured to the femoral shaft with four cortical screws. This hardware illustrates the post-operative management of an intertrochanteric hip fracture. The contralateral left hip appears anatomically normal without hardware. An 'R' marker denotes the right anatomical side. The imaging serves as a clinical example of Open Reduction Internal Fixation (ORIF) and is used to evaluate hardware positioning, fracture alignment, and subsequent healing.

Two postoperative plain film radiographs (Anteroposterior and Lateral views) demonstrating surgical fixation of a right intertrochanteric hip fracture. The imaging displays a Dynamic Hip Screw (DHS) system consisting of a large-diameter lag screw inserted through an angled barrel into the femoral head, traversing the fracture site to provide compression. A lateral side plate is affixed to the proximal femoral shaft with four cortical screws. The AP view (a) shows the anatomical alignment of the proximal femur with the lag screw positioned centrally within the femoral head. The lateral view (b), marked with an 'R' indicator, confirms the hardware position and reveals the soft tissue contours of the thigh. Key landmarks visible include the acetabulum, greater trochanter, and the proximal femoral shaft. This visual material is used in orthopedic education to illustrate the internal fixation of extracapsular hip fractures and the components of the DHS construct.

This diagnostic image is an anteroposterior (AP) plain radiograph of the right hip and proximal femur, demonstrating postoperative internal fixation of an intertrochanteric fracture. The primary orthopedic implant is a Dynamic Hip Screw (DHS) system. It features a large-diameter lag screw with a serrated distal tip centrally positioned within the femoral head to provide compression across the fracture site. This lag screw is coupled with a side plate that is securely fixed to the lateral cortex of the femoral shaft using three transverse cortical screws. The design of the DHS allows for controlled collapse and impaction along the axis of the lag screw during the weight-bearing and healing process. Radiographically, the femur exhibits features suggestive of osteopenia, characterized by reduced bone density and thinning of the cortical margins. The image captures the relationship between the femoral head, the greater and lesser trochanters, and the pelvic acetabulum, providing a clear demonstration of surgical management for geriatric hip trauma in an orthopedic clinical context.
| Type | Description |
|---|---|
| A1 | Simple 2-part fracture, stable, intact medial cortex |
| A2 | Comminuted/multifragmentary, medial wall disruption, unstable |
| A3 | Reverse oblique or transverse, highly unstable |
"The mainstay of treatment of intertrochanteric femoral fractures is fixation with a screw-side plate device or intramedullary device."
- Campbell's Operative Orthopaedics 15th Ed 2026, p. 3449
| Component | Function |
|---|---|
| Lag screw (sliding screw) | Large-diameter screw inserted into femoral head; allows controlled axial collapse/impaction |
| Barrel | Hollow cylinder within the side plate that allows the lag screw to slide |
| Side plate (2-4 hole) | Fixed to lateral femoral shaft cortex with cortical screws |
| Compression screw | Optional; applied through the end of the barrel to compress at fracture site |
| Complication | Notes |
|---|---|
| Lag screw cut-out | Most common implant failure; related to high TAD, varus reduction, poor bone quality |
| Non-union / malunion | More common with unstable patterns |
| Wound infection | Perioperative antibiotics reduce risk |
| Implant failure | Risk with A3 fractures if DHS chosen instead of IM nail |
| AVN | Rare (extracapsular fracture), unlike femoral neck fractures |
| DVT/PE | Thromboembolic prophylaxis mandatory |
| Feature | DHS (Screw-Side Plate) | Cephalomedullary Nail |
|---|---|---|
| Best for | Stable A1, simple A2 | Unstable A2, A3, reverse oblique |
| Biomechanics | Extramedullary; longer moment arm | Intramedullary; shorter moment arm (better for unstable) |
| Blood loss | Slightly more (open lateral exposure) | Less (percutaneous) |
| Cost | Lower | Higher |
| Failure risk in A3 | High - not recommended | Preferred |

