Post-Traumatic Stiffness or Joint Adhesions of the Elbow

What Is Post-Traumatic Elbow Stiffness?

Post-traumatic elbow stiffness refers to a significant loss of elbow range of motion that develops after an injury to the elbow joint or the surrounding structures. This condition occurs when the normal gliding surfaces of the elbow become restricted by scar tissue, joint capsule thickening, or adhesions that form during the healing process following fractures, dislocations, surgical procedures, or prolonged immobilization. The result is a joint that feels tight, painful, and unable to bend or straighten fully, which can profoundly affect a person's ability to perform everyday tasks such as eating, grooming, reaching overhead, and lifting objects.

The elbow is one of the most susceptible joints in the body to post-traumatic stiffness due to its complex anatomy and the tight congruency of its articulating surfaces (Patel et al., 2025, Shoulder & Elbow). Even relatively minor injuries can trigger an exaggerated healing response that leads to capsular contracture and intra-articular adhesions. A functional arc of elbow motion is generally considered to be 30 to 130 degrees of flexion-extension and 50 degrees each of pronation and supination, and any restriction that falls outside this range can impair daily function (Schneider et al., 2025, Journal of Orthopaedics). When stiffness persists beyond the expected recovery window despite conservative care, it is classified as an established post-traumatic contracture, which may require more aggressive intervention.

Post-traumatic elbow stiffness is broadly categorized into three types based on the underlying pathology. Intrinsic stiffness arises from changes within the joint itself, such as articular adhesions, capsular contracture, loose bodies, or heterotopic ossification. Extrinsic stiffness is caused by extra-articular factors, including skin contractures, muscle or tendon shortening, and collateral ligament tightening. Mixed stiffness, which is the most common presentation following significant trauma, involves a combination of both intrinsic and extrinsic elements (Patel et al., 2025, Shoulder & Elbow). Understanding which type of stiffness is present is essential for guiding the most effective treatment approach.

Anatomy of the Elbow Joint

The elbow is a synovial hinge joint formed by the articulation of three bones: the humerus (upper arm bone), the radius, and the ulna (forearm bones). These bones create three distinct articulations within a single joint capsule. The humeroulnar joint, formed between the trochlea of the humerus and the trochlear notch of the ulna, is primarily responsible for the flexion-extension arc. The humeroradial joint, between the capitellum of the humerus and the radial head, contributes to both flexion-extension and rotation. The proximal radioulnar joint, between the radial head and the radial notch of the ulna, allows forearm pronation and supination.

The entire joint is enclosed within a thin but strong joint capsule that is reinforced on either side by the medial (ulnar) and lateral (radial) collateral ligament complexes. The anterior capsule is particularly thin and prone to scarring after injury. During immobilization, the anterior capsule can contract and thicken, becoming a primary source of flexion contracture. The posterior capsule similarly contributes to extension loss when it becomes fibrotic.

Several muscles cross the elbow joint and can contribute to stiffness when they become shortened or fibrotic. The brachialis muscle, which lies directly over the anterior capsule, is especially susceptible to adhesion formation and heterotopic ossification following trauma. The triceps posteriorly and the forearm flexor-pronator and extensor-supinator muscle groups that originate from the medial and lateral epicondyles, respectively, also play roles in maintaining or restricting motion.

The olecranon fossa posteriorly and the coronoid fossa and radial fossa anteriorly are recesses in the humerus that accommodate bony prominences during full extension and flexion, respectively. When scar tissue, loose bodies, or heterotopic bone fills these fossae, the mechanical block to motion can be severe. The elbow joint also contains several important neurovascular structures, most notably the ulnar nerve, which passes through the cubital tunnel on the medial side of the elbow and is vulnerable to compression or traction injury during both trauma and subsequent treatment.

Causes of Post-Traumatic Elbow Stiffness and Joint Adhesions

Post-traumatic elbow stiffness can develop from a wide range of injuries and clinical scenarios. Understanding the cause helps guide both prognosis and treatment planning.

Fractures around the elbow are the most common precipitating event. Distal humerus fractures, radial head fractures, olecranon fractures, and coronoid fractures all carry a significant risk of subsequent stiffness, particularly when they involve the articular surface or require surgical fixation. Lee et al. (2026, JSES International) demonstrated that pre-operative soft tissue injuries are independent predictors of elbow stiffness after radial head fracture fixation, highlighting the importance of the surrounding soft tissue envelope in determining outcomes.

Elbow dislocations, especially the so-called "terrible triad" injury pattern involving dislocation with radial head and coronoid fractures, frequently result in stiffness. The extensive soft tissue disruption, combined with the need for surgical repair and a period of protection, creates an environment conducive to adhesion formation.

Prolonged immobilization is one of the most significant modifiable risk factors. The elbow begins to develop measurable stiffness after as few as five days of immobilization. Prolonged casting or splinting after fractures, dislocations, or surgical procedures allows collagen cross-links to mature and shorten within the capsule, ligaments, and surrounding soft tissues.

Heterotopic ossification (HO) is the formation of mature bone within soft tissues around the elbow. It occurs in approximately 3 to 20 percent of elbow injuries and can severely limit motion by creating a mechanical block. Risk factors for HO include high-energy trauma, burns, traumatic brain injury, delayed surgical treatment, and certain genetic predispositions. Wang et al. (2026, Dose-Response) identified novel arthrofibrosis biomarkers including COL4A3, COL4A6, COL4A5, and ITGA8 that may be involved in the pathological fibrotic and ossification cascades in post-traumatic joint contracture, pointing to the molecular complexity of this process.

Surgical procedures themselves can contribute to stiffness through additional tissue trauma, bleeding into the joint (hemarthrosis), and the inflammatory response to hardware placement. Open reduction and internal fixation (ORIF) of periarticular fractures, ligament repair, and even arthroscopic procedures carry some risk of post-operative stiffness.

Burns and soft tissue injuries to the skin, muscles, or tendons around the elbow can cause extrinsic contractures through scar formation and tissue shortening. Burns in particular can lead to severe flexion contractures that are challenging to treat.

Inflammatory conditions, including infection and inflammatory arthritis, can accelerate capsular fibrosis and adhesion formation, compounding the effects of the initial trauma.

Why Physiotherapy Is Essential for Elbow Stiffness

Physiotherapy is the cornerstone of treatment for post-traumatic elbow stiffness and is recommended as the first-line approach in virtually all clinical practice guidelines. The rationale for physiotherapy is supported by both the biology of tissue healing and a growing body of clinical evidence.

The primary goal of physiotherapy is to restore a functional range of motion while managing pain and inflammation. During the healing process after trauma, collagen fibers are laid down in a disorganized manner. Without appropriate mechanical loading and movement, these fibers mature into dense, inelastic scar tissue that restricts joint motion. Physiotherapy applies controlled mechanical forces to remodel scar tissue, elongate shortened capsular and ligamentous structures, and restore normal arthrokinematics (the small gliding and rolling movements that occur between joint surfaces during motion).

Wistow et al. (2025, JSES International) conducted a systematic review investigating the effectiveness of stretching interventions on post-traumatic elbow stiffness and found that structured stretching programs, particularly when combined with splinting protocols, produced statistically significant improvements in elbow range of motion. The authors noted that both static progressive and dynamic splinting approaches showed benefit, though the optimal protocol parameters remain an area of active investigation.

Physiotherapy also addresses the secondary contributors to stiffness, including muscle weakness, proprioceptive deficits, and compensatory movement patterns. After prolonged immobilization or disuse, the muscles around the elbow atrophy and lose the ability to generate the forces needed for normal function. Grip strength, which depends heavily on forearm musculature that crosses the elbow, is frequently impaired and requires targeted rehabilitation.

Importantly, physiotherapy can help patients avoid or delay the need for surgical intervention. While some patients with severe contractures ultimately require arthroscopic or open capsular release, a well-structured physiotherapy program should always be attempted first, as many patients achieve functional outcomes with conservative management alone. Schneider et al. (2025, Journal of Orthopaedics) emphasized that even in patients who do require surgical release, post-operative physiotherapy is critical for maintaining the gains achieved in the operating room and preventing recurrent stiffness.

For patients who have undergone surgical release, post-operative physiotherapy protocols are essential. Khorram et al. (2026, JSES Reviews, Reports & Techniques) found in their systematic review that structured post-operative rehabilitation significantly improved outcomes following surgical treatment of post-traumatic elbow stiffness, reinforcing the inseparable relationship between surgical and rehabilitative management.

Timeline of Recovery

Recovery from post-traumatic elbow stiffness is a gradual process that varies widely depending on the severity of the initial injury, the type and extent of stiffness, whether surgery was required, and the patient's adherence to their rehabilitation program. The following timeline provides a general framework, though individual experiences will differ.

Weeks 1 to 2 (Acute/Protective Phase):

• In the immediate aftermath of injury or surgery, the focus is on controlling pain, swelling, and inflammation. Gentle active range of motion exercises are typically initiated as early as tolerated, often within the first 24 to 48 hours after injury or surgery. Continuous passive motion (CPM) machines may be used in some post-operative protocols. Ice, elevation, and appropriate medication management help create a window for early movement.

Weeks 2 to 6 (Early Mobilization Phase):

• Active and active-assisted range of motion exercises are progressively intensified. Passive stretching is introduced cautiously, and static progressive or dynamic splinting may be initiated to provide low-load, prolonged stretch to contracted tissues. The goal during this phase is to steadily increase the arc of motion while respecting tissue healing timelines. Scar management techniques, soft tissue mobilization, and modalities such as ultrasound or electrical stimulation may be used to address soft tissue restrictions.

Weeks 6 to 12 (Progressive Strengthening Phase):

• As range of motion improves, the rehabilitation emphasis shifts toward restoring strength, endurance, and neuromuscular control. Progressive resistive exercises targeting the biceps, triceps, brachialis, and forearm musculature are introduced. Grip strengthening exercises are incorporated, as grip strength is often significantly reduced. Joint mobilization techniques may be applied more aggressively to address residual capsular restrictions. Functional activities that simulate daily tasks are gradually integrated.

Months 3 to 6 (Functional Restoration Phase):

• The focus transitions to sport-specific or occupation-specific rehabilitation, higher-level strengthening, and return-to-activity planning. Patients continue to work on maximizing their range of motion, though the rate of improvement typically slows after the first three months. Splinting may still be used intermittently, particularly at night, to maintain gains. Patients who are not making adequate progress by this stage should be reassessed for possible surgical intervention.

Months 6 to 12 and Beyond (Maintenance and Optimization Phase):

• Some patients continue to make small gains in range of motion up to 12 months or even longer after injury. Maintenance exercises and periodic reassessment help ensure that gains are preserved. For patients who have undergone surgical release, the risk of recurrent stiffness is highest in the first few months, making ongoing compliance with the home exercise program essential.

It is important to note that some degree of motion loss may be permanent, particularly in patients with severe injuries, heterotopic ossification, or articular incongruity. The goal of rehabilitation is to achieve a functional arc of motion that allows the patient to perform their desired activities with minimal limitation.

Treatment Approaches

Management of post-traumatic elbow stiffness employs a spectrum of interventions ranging from conservative therapies to surgical procedures, often used in combination for optimal results.

• Manual Therapy and Joint Mobilization
  • Hands-on techniques are fundamental to the physiotherapy management of elbow stiffness. Joint mobilization involves the therapist applying graded oscillatory or sustained forces to the elbow joint to restore the accessory gliding motions that are essential for normal flexion, extension, pronation, and supination. Maitland grades I and II (small and large amplitude movements within the available range) are used primarily for pain relief, while grades III and IV (large and small amplitude movements into resistance at end range) are used to improve joint mobility. Mobilization with movement (MWM) techniques, as described by Mulligan, combine passive accessory gliding with active physiological movement and can be particularly effective for restoring elbow motion.
  • Soft tissue mobilization, myofascial release, and instrument-assisted soft tissue mobilization (IASTM) are used to address restrictions in the muscles, fascia, and scar tissue surrounding the elbow. The brachialis muscle, which is prone to adhesion formation, is a common target. Scar tissue massage and cross-friction techniques can help remodel fibrotic tissue and improve tissue extensibility.
• Stretching and Splinting
  • Stretching is a cornerstone of conservative management. The two primary splinting approaches are static progressive splinting and dynamic splinting. Static progressive splinting uses an inelastic device that holds the joint at end range with an adjustable force, allowing the patient to incrementally increase the stretch as tissue relaxation occurs. Dynamic splinting uses a spring-loaded or elastic mechanism to apply a constant low-load force to the joint over an extended period. Both approaches have been shown to be effective in improving elbow range of motion (Wistow et al., 2025, JSES International). The choice between them often depends on patient preference, the specific pattern of stiffness, and the clinician's experience. Most protocols recommend wearing the splint for multiple hours per day, typically six to eight hours, which can be divided between daytime and nighttime use.
• Therapeutic Exercise
  • A structured exercise program addresses the multiple dimensions of impairment associated with elbow stiffness. Active range of motion exercises encourage the patient to move through their available arc using their own muscle power, which also promotes joint lubrication and scar tissue remodeling. Active-assisted exercises use the opposite hand, a cane, or other tools to augment the motion achieved actively. Progressive resistive exercises using elastic bands, light dumbbells, or machines restore the strength of the elbow flexors, extensors, pronators, and supinators. Grip strengthening with putty, hand grippers, or dynamometers addresses the frequently impaired hand function. Proprioceptive and neuromuscular control exercises, including closed kinetic chain activities such as wall push-ups and table slides, help restore the joint's sense of position and stability.
• Modalities
  • Physiotherapy modalities may be used as adjuncts to the primary interventions. Therapeutic ultrasound can increase tissue temperature and extensibility, making it useful as a warm-up before stretching or mobilization. Transcutaneous electrical nerve stimulation (TENS) and interferential current therapy can provide pain relief, enabling more effective participation in exercise. Cryotherapy (ice) is used after treatment sessions to manage inflammation and soreness. Heat application before therapy sessions helps relax muscles and improve tissue pliability.
• Surgical Intervention
  • When conservative management fails to achieve a functional range of motion after an adequate trial, typically three to six months, surgical intervention may be considered. Patel et al. (2025, Shoulder & Elbow) compared open and arthroscopic approaches for post-traumatic elbow stiffness and found that both techniques can produce significant improvements in range of motion, though the choice between them depends on the specific pathology, the presence of hardware, and the surgeon's expertise. Arthroscopic capsular release offers the advantages of smaller incisions, potentially faster recovery, and direct visualization of intra-articular pathology, while open release provides better access for removal of heterotopic ossification and complex reconstruction.
  • Post-operative rehabilitation following surgical release is arguably even more important than the surgery itself, as the tissues that were released have a strong tendency to scar down again. Schneider et al. (2025, Journal of Orthopaedics) reviewed rehabilitation protocols after surgical release and emphasized the importance of early, aggressive range of motion exercises, often beginning on the day of surgery with the use of continuous passive motion or immediate active mobilization. A structured post-operative protocol typically includes regional anesthesia with indwelling catheters for pain control, CPM or early active motion, edema management, progressive splinting, and a graduated strengthening program.

Prevention of Post-Traumatic Elbow Stiffness

Prevention of elbow stiffness begins at the time of injury and continues throughout the recovery process. The most important preventive strategy is early mobilization. Current evidence strongly supports moving the elbow as early as safely possible after injury or surgery, rather than prolonged immobilization. For stable fractures and many surgical repairs, protected active motion can begin within the first few days.

• Stable surgical fixation is critical when operative treatment of fractures is required. The stronger and more reliable the fixation, the earlier and more confidently the patient can begin moving the elbow. Surgeons should aim for fixation constructs that allow immediate or near-immediate motion.
• Minimizing surgical trauma through careful soft tissue handling, meticulous hemostasis (control of bleeding), and avoiding unnecessary periosteal stripping can reduce the inflammatory stimulus that drives scar formation and heterotopic ossification.
• Prophylaxis against heterotopic ossification should be considered in high-risk patients. Options include non-steroidal anti-inflammatory drugs (NSAIDs) such as indomethacin, typically given for two to six weeks, or low-dose radiation therapy to the elbow. These interventions are most effective when started within 24 to 48 hours of injury or surgery.
• Edema management through elevation, compression, cryotherapy, and active muscle pumping helps prevent the accumulation of inflammatory exudate that can organize into fibrous tissue.
• Patient education is essential for setting realistic expectations, explaining the importance of adherence to the exercise and splinting program, and empowering the patient to take an active role in their recovery. Patients who understand the biology of stiffness and the rationale for their treatment program are more likely to comply with their home exercises and splinting regimen.
• Ongoing monitoring by the physiotherapy team allows early identification of patients who are falling behind expected recovery milestones, enabling timely modification of the treatment plan or referral for further investigation.

Frequently Asked Questions

• How long does it take for post-traumatic elbow stiffness to resolve?
  • The timeline varies widely depending on the severity of the initial injury and the type of stiffness present. Mild stiffness following simple fractures or dislocations may resolve within six to twelve weeks of structured physiotherapy. More severe stiffness, particularly when associated with heterotopic ossification, complex fracture patterns, or multiple surgeries, may take six months to a year or longer to reach maximum improvement. Some patients may have a permanent mild limitation in their range of motion, though physiotherapy aims to ensure this does not significantly impact daily function
• Can elbow stiffness come back after treatment?
  • Yes, recurrence is possible, especially after surgical release. The tissues that are released or stretched during treatment can scar down again if the rehabilitation program is not followed diligently. This is why compliance with the home exercise program and any prescribed splinting regimen is so important. Regular follow-up with your physiotherapist allows early detection and management of any regression.
• Is it normal for physiotherapy to be painful?
  • Some discomfort during stretching and mobilization is expected and is generally a sign that the tissues are being effectively challenged. However, there is an important distinction between therapeutic discomfort and harmful pain. Your physiotherapist will guide you on appropriate intensity levels. Pain that persists for more than a few hours after treatment, or sharp pain during exercises, should be reported to your therapist so that the program can be adjusted.
• What is the difference between a contracture and an adhesion?
  • A contracture refers to a permanent shortening of a tissue, such as the joint capsule, a ligament, or a muscle-tendon unit, that limits joint motion. An adhesion is a band of scar tissue that forms between two surfaces that normally glide freely, such as between the joint capsule and the underlying bone, or between layers of soft tissue. Both contractures and adhesions contribute to post-traumatic elbow stiffness and often coexist. Treatment approaches address both pathologies through a combination of stretching, mobilization, and functional exercises.
• When should surgery be considered for elbow stiffness?
  • Surgery is typically considered when a structured physiotherapy program of at least three to six months has failed to achieve a functional range of motion, or when imaging reveals a clear mechanical block such as heterotopic ossification or hardware impingement that cannot be addressed conservatively. The decision is made collaboratively between the patient, the surgeon, and the physiotherapist, taking into account the patient's functional demands, the specific pathology identified on imaging, and the patient's willingness and ability to commit to an intensive post-operative rehabilitation program.
• Can I prevent elbow stiffness after a fracture?
  • While not all stiffness can be prevented, the risk can be significantly reduced through early mobilization, adherence to your physiotherapist's exercise program, appropriate edema management, and in some cases, prophylactic measures against heterotopic ossification. The single most important preventive factor is beginning gentle, supervised movement of the elbow as early as your injury or surgical repair allows. Avoiding unnecessary or prolonged immobilization is critical.
• What role does splinting play in treatment?
  • Splinting is a key component of the non-surgical management of elbow stiffness. Static progressive and dynamic splints apply a controlled, sustained stretch to contracted tissues over extended periods, which is more effective at producing lasting tissue elongation than brief manual stretching alone. Splints are typically prescribed for several hours per day and may be worn during the day, at night, or both, depending on the pattern of stiffness and the patient's tolerance. They are often used in combination with a comprehensive physiotherapy program that includes manual therapy, exercises, and modalities.

Take the First Step Toward Recovery

If you are struggling with elbow stiffness after a fracture, dislocation, or surgery, the experienced physiotherapy team at Vaughan Physiotherapy can help. Our clinicians use evidence-based techniques including manual therapy, progressive splinting, therapeutic exercise, and individualized treatment planning to help you regain motion, reduce pain, and return to the activities you enjoy.

Do not let elbow stiffness limit your life. Early intervention produces the best outcomes, so we encourage you to reach out as soon as possible.

Call us today at 905-669-1221 to book your assessment.

Visit us at: 398 Steeles Ave W, Unit 201, Thornhill, Ontario

Learn more at: vaughanphysiotherapy.com