Core Muscle Injury | Rectus–Adductor Aponeurosis | Groin Pain in Athletes
INJURY CLASSIFICATION
Critical Must-Knows
- Athletic pubalgia = core muscle injury at the rectus abdominis–adductor longus aponeurosis of the pubis
- True hernia is absent — the pathology is a tear or attenuation of the aponeurotic plate
- Must differentiate from osteitis pubis (inflammatory), FAI (hip intra-articular), and inguinal hernia
- MRI is the gold standard for imaging — look for rectus tear, adductor tendinopathy, and secondary cleft sign
- Conservative management (6-12 weeks physiotherapy) is first line; surgery reserved for refractory cases
Clinical Pearls
- "Sports hernia = no true hernia on examination — it is a core muscle / aponeurotic injury
- "Pain is groin-based, exertional, improved with rest — differentiates from hip pathology
- "Resisted sit-up or adduction against resistance reproduces pain
- "MRI shows rectus abdominis tear or secondary cleft — do NOT diagnose on ultrasound alone
Critical Athletic Pubalgia Exam Points
Definition
Athletic pubalgia is NOT a true hernia. It is a core muscle injury involving disruption of the rectus abdominis–adductor longus aponeurotic plate at the pubic symphysis. There is no palpable inguinal hernia on examination.
Key Differential
Three mimics must be excluded: (1) osteitis pubis (pubic symphysis inflammation on imaging), (2) femoroacetabular impingement (hip intra-articular pathology), (3) true inguinal or femoral hernia. Each demands a different treatment pathway.
Diagnosis
MRI is the gold standard. Look for rectus abdominis tear at the pubic attachment, adductor longus tendinopathy or partial avulsion, and the "secondary cleft sign" (fluid cleft extending inferolaterally from the symphysis indicating capsular tear). Ultrasound is operator-dependent and less sensitive.
Management Principle
Conservative first, surgery for refractory cases. A minimum 6-12 week structured physiotherapy programme (core stabilisation, adductor strengthening, lumbopelvic control) is first line. Surgery (open or laparoscopic repair, with or without adductor release) is for patients who fail rehabilitation.
Quick Decision Guide
| Presentation | Diagnosis | Treatment | Key Pearl |
|---|---|---|---|
| Acute groin pain after twisting/sprinting, no hernia | MRI: rectus tear or secondary cleft sign | Conservative rehab 6-12 weeks first | Most resolve with structured physiotherapy |
| Recurrent groin pain despite 12 weeks rehab | MRI confirmed core muscle injury, no hip OA | Surgical repair (laparoscopic mesh or open) | Return to sport in 6-8 weeks post-surgery |
| Bilateral groin pain with pubic tenderness | MRI: pubic bone marrow oedema = osteitis pubis | Anti-inflammatories, activity modification, rehab | Not a surgical condition — differentiate carefully |
GROINAthletic Pubalgia Differential Diagnosis
| G | Groin strain Adductor longus muscle-tendon injury (most common athletic groin injury) |
| R | Rectus abdominis tear Core muscle injury at pubic attachment — athletic pubalgia proper |
| O | Osteitis pubis Pubic symphysis inflammation with bone marrow oedema on MRI |
| I | Intra-articular hip FAI, labral tear, or early hip OA — must exclude |
| N | Nerve / hernia Obturator or genitofemoral nerve entrapment; true inguinal hernia |
| G | Groin strain Adductor longus muscle-tendon injury (most common athletic groin injury) | I | Intra-articular hip FAI, labral tear, or early hip OA — must exclude |
| R | Rectus abdominis tear Core muscle injury at pubic attachment — athletic pubalgia proper | N | Nerve / hernia Obturator or genitofemoral nerve entrapment; true inguinal hernia |
| O | Osteitis pubis Pubic symphysis inflammation with bone marrow oedema on MRI |
Hook:Think GROIN for the five key differentials in the athlete with groin pain!
PUBICAthletic Pubalgia Clinical Features
| P | Pain with exertion Deep groin pain during sprinting, cutting, twisting, or sit-ups |
| U | Unilateral predominance Typically unilateral; bilateral suggests osteitis pubis |
| B | Ball sports Soccer, rugby, AFL, ice hockey — twisting and kicking sports |
| I | Improved with rest Pain settles at rest, recurs on return to sport (activity-related) |
| C | Cough/sneeze reproduction Increased intra-abdominal pressure reproduces groin pain |
| P | Pain with exertion Deep groin pain during sprinting, cutting, twisting, or sit-ups | I | Improved with rest Pain settles at rest, recurs on return to sport (activity-related) |
| U | Unilateral predominance Typically unilateral; bilateral suggests osteitis pubis | C | Cough/sneeze reproduction Increased intra-abdominal pressure reproduces groin pain |
| B | Ball sports Soccer, rugby, AFL, ice hockey — twisting and kicking sports |
Hook:PUBIC — the five hallmarks of athletic pubalgia that separate it from hip pathology!
CORESConservative Management Phases
| C | Control pain and inflammation Relative rest, NSAIDs, cryotherapy for first 2 weeks |
| O | Optimise lumbopelvic stability Transversus abdominis and multifidus activation |
| R | Rebuild adductor strength Isometric to isotonic to dynamic adductor loading programme |
| E | Enhance sport-specific movement Cutting, twisting, sprinting drills with progressive loading |
| S | Sport return at 6-12 weeks Criteria-based return: pain-free bilateral adductor squeeze, sport-specific tests |
| C | Control pain and inflammation Relative rest, NSAIDs, cryotherapy for first 2 weeks | E | Enhance sport-specific movement Cutting, twisting, sprinting drills with progressive loading |
| O | Optimise lumbopelvic stability Transversus abdominis and multifidus activation | S | Sport return at 6-12 weeks Criteria-based return: pain-free bilateral adductor squeeze, sport-specific tests |
| R | Rebuild adductor strength Isometric to isotonic to dynamic adductor loading programme |
Hook:CORES — the five phases of conservative rehab for athletic pubalgia!
Overview and Epidemiology
Why This Matters
Athletic pubalgia is one of the most common causes of chronic groin pain in athletes and is frequently misdiagnosed as a groin strain, osteitis pubis, or hip pathology. The term "sports hernia" is misleading — there is no true hernia. The pathology is a tear or attenuation of the aponeurosis between the rectus abdominis and adductor longus at their pubic attachment. Accurate diagnosis requires MRI and a structured clinical assessment to differentiate from intra-articular hip pathology, which demands a completely different treatment pathway. Up to 30-50% of athletes with chronic groin pain have core muscle injury.
Epidemiology
- Incidence: 0.5-6% of athletes per year in kicking and cutting sports
- Sex: Overwhelmingly male (ratio approximately 10:1)
- Age: Peak 20-35 years (competitive sporting years)
- Sports: Soccer, rugby, Australian rules football, ice hockey, tennis
- Bilateral: 20-30% of cases
Clinical Impact
- Time loss: Average 6-12 weeks from sport
- Recurrence: Up to 20% without structured rehabilitation
- Career threat: Professional athletes may require surgical intervention
- Misdiagnosis: Average delay to correct diagnosis is 4-8 months
- Cost: Significant in professional sport due to time away from play
Pathophysiology
Anatomy of the Pubic Aponeurotic Plate
The rectus abdominis and adductor longus share a common aponeurotic attachment on the anterior pubis. The rectus abdominis inserts on the pubic crest and symphysis, while the adductor longus originates from the inferior pubic ramus. These two structures form a functional unit — the pubic aponeurotic plate. During twisting, kicking, and cutting movements, opposing forces (rectus pulling superiorly, adductor pulling inferiorly) create shear stress at this aponeurosis. Repetitive loading causes microtears, attenuation, or frank disruption. There is no true hernia — the posterior inguinal wall may be weakened but no visceral structure protrudes.
Anatomical Structures Involved
| Structure | Attachment to Pubis | Function | When Injured |
|---|---|---|---|
| Rectus abdominis (inferior) | Pubic crest and symphysis anteriorly | Trunk flexion, intra-abdominal pressure | Tear or attenuation at pubic attachment |
| Adductor longus (proximal) | Inferior pubic ramus origin | Hip adduction, stabilisation in running | Tendinopathy or partial avulsion |
| Conjoint tendon | Pubic tubercle and pectineal line | Posterior wall of inguinal canal | Attenuation contributes to posterior wall weakness |
| External oblique aponeurosis | Contributes to inguinal canal anterior wall | Trunk rotation, abdominal wall integrity | Thinning or tear near superficial ring |
Biomechanics of Injury
Normal: Rectus and adductor share balanced load at pubic aponeurosis
Repetitive overload: Kicking, twisting, sprinting creates shear forces
Microtears develop: At rectus insertion, adductor origin, or both
Aponeurotic plate weakens: Progressive loss of integrity
Result: Pain with any activity that loads the pubic aponeurosis (coughing, sit-ups, sprinting)
Why It Mimics Other Conditions
Overlapping anatomy: Pubic symphysis, hip joint, and inguinal canal are within centimetres
Referred pain: Obturator nerve irritation from adductor pathology refers to medial thigh
Hip pathology coexists: Up to 25% have concurrent FAI or labral pathology
Osteitis pubis overlap: Pubic bone marrow oedema can be present in both conditions
Examination limited: Athletes often have multiplaner groin pain that is hard to localise
Classification and Types
Classification by Anatomical Structure Involved
| Type | Structure Injured | MRI Findings | Prevalence |
|---|---|---|---|
| Rectus abdominis tear | Inferior rectus at pubic attachment | Rectus oedema or disruption, secondary cleft | Most common pattern |
| Adductor longus tendinopathy | Proximal adductor longus tendon | Tendon thickening, peritendinous oedema | Very common, often coexists |
| Combined rectus and adductor | Both structures at pubic aponeurosis | Bilateral or unilateral multi-structure changes | Common in chronic presentations |
| Posterior wall deficiency | Conjoint tendon or transversalis fascia | Posterior wall bulge on dynamic ultrasound | Less common as isolated finding |
The anatomical classification guides surgical planning: isolated adductor pathology may respond to adductor release, while rectus tears may require direct repair or mesh reinforcement.
Clinical Assessment
History
- Mechanism: Twisting, cutting, sprinting, kicking — repetitive overload
- Pain location: Deep groin, low abdominal, perineal radiation
- Timing: Activity-related, improves with rest, recurs on return
- Provocation: Coughing, sneezing, sit-ups, resisted adduction
- Previous treatment: Failed courses of physiotherapy, NSAIDs, or rest
Examination
- Inspect: No visible swelling, no inguinal lump (differentiates from true hernia)
- Palpate: Tenderness over pubic tubercle, rectus insertion, adductor origin
- Resisted sit-up test: Reproduces groin pain (sensitive for rectus involvement)
- Resisted adduction test: Pain with adduction against resistance (adductor pathology)
- Squeeze test: Adductor squeeze at 0, 45, and 90 degrees of hip flexion
Systematic Groin Examination Protocol
Step 1 — Exclude true hernia: Examine standing and coughing for inguinal or femoral hernia. If palpable lump, refer to general surgery — this is NOT athletic pubalgia.
Step 2 — Assess adductors: Resisted adduction in neutral, 45-degree flexion. Pain localised to adductor longus origin suggests adductor tendinopathy.
Step 3 — Assess rectus abdominis: Resisted bilateral sit-up, resisted unilateral hip flexion with trunk rotation. Pain at the pubic insertion suggests rectus involvement.
Step 4 — Assess hip joint: FADIR (flexion, adduction, internal rotation) test for FAI. FABER test for sacroiliac or hip pathology. If positive, order hip-specific imaging.
Step 5 — Assess pubic symphysis: Direct palpation of symphysis. Marked tenderness with bilateral symptoms suggests osteitis pubis.
Clinical Tests for Athletic Pubalgia
| Test | Technique | Positive Finding | Significance |
|---|---|---|---|
| Resisted sit-up | Supine, resisted trunk flexion from partial sit-up | Pain at pubic insertion of rectus abdominis | Suggests rectus abdominis involvement |
| Resisted adduction (squeeze) | Adduction against resistance at 0, 45, and 90 degrees | Pain at adductor longus origin | Suggests adductor pathology |
| Cough impulse | Cough while examiner palpates the inguinal canal | Pain without palpable impulse (no hernia) | Supports posterior wall weakness |
| FADIR test | Hip flexed 90 degrees, adducted and internally rotated | Deep anterior groin or hip pain | Suggests FAI or labral tear — investigate hip |
Differential Diagnosis of Groin Pain in Athletes
| Condition | Key Features | Discriminating Finding | Imaging |
|---|---|---|---|
| Athletic pubalgia (core muscle injury) | Unilateral, exertional groin pain, no hernia | Resisted sit-up reproduces pain, no palpable lump | MRI: rectus tear, secondary cleft sign |
| Osteitis pubis | Bilateral pubic pain, insidious onset | Direct symphysis tenderness, bilateral symptoms | MRI: pubic bone marrow oedema, symphyseal sclerosis |
| Femoroacetabular impingement (FAI) | Deep groin pain, prolonged sitting or hip flexion | Positive FADIR test, limited internal rotation | MRI/CT: cam or pincer morphology, labral tear |
| Adductor longus strain | Acute onset, localised to adductor longus | Sudden injury, tenderness along muscle belly | MRI: muscle oedema, tear at musculotendinous junction |
| Inguinal hernia | Groin lump, cough impulse | Palpable reducible mass | Ultrasound: hernia sac with Valsalva |
| Stress fracture (femoral neck / pubic ramus) | Activity-related groin pain, night pain | Weight-bearing pain, positive hop test | MRI: fracture line, periosteal oedema |
Don't Miss FAI Disguised as Athletic Pubalgia
Up to 25% of athletes with athletic pubalgia have concurrent FAI. If the FADIR test is positive or the patient has limited internal rotation of the hip, hip-specific imaging (MRI with hip protocol) is mandatory before any groin surgery. Operating on the pubic aponeurosis when the primary pain generator is the hip will fail. The two conditions can coexist and may require sequential treatment — address the intra-articular hip pathology first.
Investigations
Imaging Protocol
Sequences: Coronal, sagittal, and axial T1 and T2 fat-suppressed sequences through the pubic symphysis and hips
Look for: Rectus abdominis tear or oedema at pubic attachment, adductor longus tendinopathy or partial avulsion, secondary cleft sign (fluid cleft inferolateral to symphysis indicating capsular disruption), pubic bone marrow oedema pattern
Clinical correlation: MRI is the gold standard with sensitivity reported at 85-95% for core muscle injury
Indication: Positive FADIR test, limited hip internal rotation, or deep anterior groin pain
Look for: Cam or pincer morphology, labral tear, chondral damage, ligamentum teres pathology
Important: Hip pathology may coexist with athletic pubalgia — both may require treatment
Indication: Assess for posterior wall deficiency, true inguinal hernia
Technique: Valsalva manoeuvre during real-time scanning of the inguinal canal
Limitation: Operator-dependent, less sensitive for rectus or adductor pathology compared to MRI
Role: Excludes true hernia; does NOT replace MRI for diagnosis
Indication: Patients unable to undergo MRI (pacemaker, metalwork artefact)
Limitation: Poor soft tissue detail compared to MRI — less useful for aponeurotic assessment
Role: Excludes bony pathology (stress fracture, pubic symphysis sclerosis)
Imaging Pearl
The secondary cleft sign on MRI is the most specific finding for athletic pubalgia. It appears as a curvilinear fluid signal extending inferolaterally from the pubic symphysis, representing a tear of the aponeurotic attachment. It is seen in approximately 70-80% of surgical cases. Pubic bone marrow oedema is non-specific and can be present in both athletic pubalgia and osteitis pubis — do not rely on this finding alone to differentiate the two conditions.
Management Algorithm
Conservative Management (First Line for All Patients)
Goal: Restore lumbopelvic stability, adductor strength, and sport-specific function through structured rehabilitation
Rehabilitation Protocol
Pain control: Relative rest from provocative activities, NSAIDs, cryotherapy
Protected loading: Isometric adductor squeezes (pain-free), transversus abdominis activation
Manual therapy: Hip joint mobilisation, adductor soft tissue work, symphysis mobilisation if indicated
Goal: Pain reduction, baseline activation of core musculature
Progressive loading: Isotonic adductor exercises (Copenhagen adductor programme), single-leg stability work
Core integration: Dead bugs, bird dogs, pallof press with progressive resistance
Running: Straight-line jogging if pain-free
Goal: Pain-free activities of daily living, adductor-to-abductor strength ratio approaching 80-90%
Sport-specific loading: Cutting, twisting, sprinting drills with progressive intensity
Change of direction: Figure-of-eight running, lateral shuffles
Kicking progression: Progressive kicking distance and power for kicking-sport athletes
Goal: Pain-free sport-specific movements at moderate intensity
Full training: Return to full team training, initially non-contact
Match play: Return to competitive sport after pain-free full training
Criteria: Bilateral adductor squeeze test pain-free, adductor strength greater than 90% of contralateral side, sport-specific functional tests passed
Prevention: Ongoing adductor and core maintenance programme
Rehabilitation Pearl
The Copenhagen adductor exercise programme has level 1 evidence for both prevention and treatment of groin problems in athletes. The programme involves isometric and dynamic adductor exercises performed in a sideline position with progressive loading. Studies demonstrate a reduction in groin injuries by approximately 40% when used as a prevention programme. This is the single most evidence-based intervention for athletic groin injuries.
Complications
| Complication | Incidence | Risk Factors | Management |
|---|---|---|---|
| Persistent groin pain after surgery | 5-15% of surgical cases | Incorrect diagnosis, concurrent FAI, incomplete repair | Reassess for missed hip pathology, repeat MRI, revision surgery rarely |
| Recurrence after conservative treatment | 15-30% without ongoing prevention | Inadequate rehabilitation, premature return to sport | Extended rehab programme, adductor prevention exercises |
| Adductor weakness after tenotomy | Variable, often temporary | Complete tenotomy, inadequate rehab | Progressive adductor strengthening, most resolve by 6 months |
| Wound infection or haematoma | 1-3% (surgical cases) | Open technique, obesity, diabetes | Standard surgical wound management, antibiotics if indicated |
| Chronic groin pain (career-ending) | 2-5% of elite athletes | Multiple failed treatments, incorrect diagnosis, psychological factors | Multi-disciplinary pain management, psychological support, career counselling |
The Number One Complication is Misdiagnosis
The most common cause of "failed athletic pubalgia surgery" is that the diagnosis was wrong. The true pain generator was FAI, a labral tear, osteitis pubis, or nerve entrapment. Always complete a thorough hip examination and MRI hip protocol before committing to pubic surgery. If any doubt exists about the primary pain source, consider diagnostic injections (hip joint vs pubic symphysis) to differentiate.
Outcomes and Prognosis
Outcomes by Treatment Approach
| Approach | Expected Outcome | Return to Sport | Long-term Prognosis |
|---|---|---|---|
| Conservative rehabilitation (6-12 weeks) | 70-90% resolution of symptoms | 6-12 weeks with criteria-based progression | Excellent if compliance maintained and prevention continued |
| Surgical repair (laparoscopic or open) | 85-95% return to competitive sport | 6-8 weeks post-surgery | Good long-term outcomes with maintained core conditioning |
| Combined hip arthroscopy and pubic repair | Variable, depends on hip pathology severity | 3-6 months (longer rehabilitation) | Dependent on hip joint preservation success |
| Failed diagnosis / incorrect treatment | Persistent symptoms, psychological impact | Delayed or absent | Guarded — requires multidisciplinary reassessment |
Prognostic Factors
Best prognosis: Acute presentation, accurate early diagnosis, compliant structured rehabilitation, no concurrent hip pathology, male sex
Poor prognosis: Chronic symptoms greater than 6 months, multiple previous failed treatments, concurrent FAI or labral pathology, bilateral symptoms suggesting osteitis pubis
Key threshold: 12 weeks of conservative rehabilitation — if no meaningful improvement by this point, surgical consideration is appropriate. Earlier surgery may be considered in professional athletes with MRI-confirmed pathology.
Evidence Base and Key Trials
Management of severe lower abdominal or inguinal pain in high-performance athletes. PAIN (Performing Athletes with Abdominal or Inguinal Neuromuscular Pain Study Group)
- Landmark case series establishing the concept of athletic pubalgia as a distinct clinical entity in high-performance athletes
- Identified the rectus abdominis–adductor longus aponeurotic plate as the primary site of injury
- Surgical repair of the identified defect allowed the majority of athletes to return to competitive sport
- Emphasised that the condition is commonly misdiagnosed as a groin strain, hip pathology, or true hernia
Effectiveness of active physical training as treatment for long-standing adductor-related groin pain in athletes: randomised trial
- Randomised controlled trial comparing active training programme (physiotherapy) with passive treatments (massage, stretching, laser)
- Active training group: 79% returned to sport without pain versus 14% in passive treatment group
- The active programme focused on progressive adductor and core strengthening with lumbopelvic stabilisation
- Established structured rehabilitation as first-line treatment for adductor-related groin pain
The Adductor Strengthening Programme prevents groin problems among male football players: a cluster-randomised controlled trial
- Cluster-randomised trial of the Copenhagen adduction exercise programme in professional footballers
- Reduction in groin injury incidence by approximately 40% compared to control
- The programme includes isometric, concentric, and eccentric adductor exercises in a sideline position
- Compliance with greater than 2 sessions per week was associated with the greatest risk reduction
Clinical presentation of femoroacetabular impingement
- Review highlighting that FAI is a frequent cause of groin pain in athletes and often coexists with athletic pubalgia
- Up to 25% of athletes with athletic pubalgia have concurrent FAI
- FADIR test is the most sensitive clinical test for intra-articular hip pathology
- Hip arthroscopy addresses cam and pincer lesions with favourable outcomes in athletes
Athletic groin pain: a systematic review and meta-analysis of surgical versus physical therapy rehabilitation outcomes
- Systematic review and meta-analysis comparing surgical versus physical therapy rehabilitation outcomes for athletic groin pain
- Both surgical and exercise-based rehabilitation showed favourable return-to-sport outcomes
- Physical therapy rehabilitation showed success rates of 70-90% across included studies
- No high-quality RCTs directly comparing surgical versus conservative management exist
Exam Viva Scenarios
Use these scenarios to practise clinical reasoning and management decisions
Scenario 1: Acute Groin Pain in a Footballer
"A 24-year-old professional soccer player presents with 8 weeks of progressive left-sided groin pain, worse during kicking and sprinting. He has no palpable inguinal hernia. Resisted sit-ups reproduce his pain. X-rays of the pelvis are normal. What is your diagnosis, investigation, and management plan?"
Scenario 2: Failed Rehabilitation — Surgical Decision-Making
"A 28-year-old elite rugby player has completed 14 weeks of supervised rehabilitation for MRI-confirmed athletic pubalgia (rectus abdominis tear with secondary cleft sign). He continues to have activity-limiting groin pain. His FADIR test is negative and hip MRI shows no FAI. He is desperate to return to competitive rugby. What are your surgical options and how do you counsel him?"
MCQ Practice Points
Definition Question
Q: What is athletic pubalgia? A: A core muscle injury involving disruption of the rectus abdominis–adductor longus aponeurotic plate at the pubic symphysis. It is NOT a true hernia — no visceral structure protrudes and no palpable inguinal mass is present. The pathology is a tear or attenuation of the aponeurosis due to repetitive shear forces from twisting and kicking.
Diagnosis Question
Q: What is the gold standard imaging for athletic pubalgia? A: MRI of the pelvis with an athletic pubalgia protocol. Key findings include: rectus abdominis tear or oedema at the pubic attachment, adductor longus tendinopathy or partial avulsion, and the secondary cleft sign (fluid cleft extending inferolaterally from the symphysis). Dynamic ultrasound can exclude true hernia but is less sensitive for core muscle injury.
Differential Question
Q: How do you differentiate athletic pubalgia from osteitis pubis? A: Athletic pubalgia is typically unilateral, with pain reproduced by resisted sit-up or adduction, and MRI shows a rectus tear or secondary cleft sign. Osteitis pubis is typically bilateral, with direct symphysis tenderness, and MRI shows marked pubic bone marrow oedema and symphyseal sclerosis. Osteitis pubis is managed with rest and anti-inflammatories — it is NOT a surgical condition.
Treatment Question
Q: What is the first-line treatment for athletic pubalgia? A: Structured physiotherapy for 6-12 weeks comprising: pain control, lumbopelvic stabilisation (transversus abdominis and multifidus), progressive adductor strengthening (Copenhagen adduction programme), and sport-specific functional rehabilitation. The Copenhagen programme has level 1 evidence for treatment and prevention of groin injuries. Surgery is reserved for patients who fail conservative management.
Surgical Question
Q: When is surgery indicated for athletic pubalgia? A: Surgery is indicated after failure of a minimum 6-12 weeks of structured, supervised rehabilitation in a compliant athlete with MRI-confirmed core muscle injury and excluded hip pathology. Options include laparoscopic mesh repair, open repair, or combined repair with adductor release. Return-to-sport rates are 85-95% in experienced centres. The number one cause of surgical failure is incorrect diagnosis (missed FAI).
Guidelines, Registries & Global Practice
Global Epidemiology
- Incidence: 0.5-6% of athletes per year in kicking and cutting sports
- Highest rates: Professional soccer (up to 10-18% career incidence), rugby, ice hockey
- Sex: Overwhelmingly male; female athletic pubalgia is under-recognised and may present differently
- Geographic variation: Higher reported rates in countries with strong football and rugby programmes (UK, Europe, Australia, Scandinavia)
- Economic impact: Significant in professional sport — average 6-12 weeks lost from training and competition
Practice Variation by Resource Setting
- High-resource: MRI-first diagnostic pathway, structured physiotherapy, surgical options (laparoscopic or open), multidisciplinary team
- Limited-resource: Clinical diagnosis with ultrasound, extended rehabilitation as sole treatment, limited surgical availability
- Universal principle: Structured active rehabilitation is the foundation regardless of resources — the Holmich protocol and Copenhagen programme require no equipment
- Prevention: The Copenhagen adduction programme is free, requires no equipment, and has the strongest evidence for groin injury prevention
Society and Reference Guidance (Side by Side)
| Source | Diagnosis Emphasis | Conservative Treatment | Surgical Indication |
|---|---|---|---|
| Doha Agreement (2014, international consensus) | Clinical examination categorised by anatomical entity; MRI for all persistent cases | Minimum 6-12 weeks structured exercise programme before surgical consideration | Only after failed rehabilitation; multi-disciplinary assessment mandatory |
| BOA / Bess (UK) | MRI pelvis with athletic pubalgia protocol; exclude FAI with hip-specific MRI | Physiotherapy-led rehabilitation; Copenhagen programme recommended | Laparoscopic or open repair in specialist centres |
| AAOS / AOSSM (US) | MRI pelvis and hip; dynamic ultrasound to exclude true hernia | Progressive rehabilitation 6-12 weeks; consider injection therapy | Open or laparoscopic repair; adductor release if concurrent tendinopathy |
| AO Foundation | Assess for bony involvement (pubic ramus stress fracture); MRI essential | Rehabilitation first; address biomechanical and training load factors | Surgical repair principles similar across approaches; expertise matters more than technique |
Registry and Evidence Note
There is no dedicated arthroplasty or implant registry relevant to athletic pubalgia, as the condition involves soft tissue repair without implants. The evidence base is dominated by large case series (Meyers) and a small number of RCTs (Holmich, Haroy). The Doha Agreement (2014) provides the most widely accepted consensus terminology and classification framework, categorising groin pain by anatomical entity: adductor-related, iliopsoas-related, inguinal-related, pubic-related, and hip-related. Athletic pubalgia falls primarily within the inguinal-related and pubic-related categories.
Documentation Essentials (Globally Applicable)
Record in every athlete with groin pain:
- Duration and nature of symptoms (acute vs insidious, unilateral vs bilateral)
- Hernia examination performed (standing, coughing) and result
- Hip examination (FADIR test, internal rotation range) and result
- MRI pelvis findings (rectus tear, secondary cleft, adductor pathology, bone marrow oedema pattern)
- Hip MRI if FADIR positive
- Rehabilitation programme details (duration, compliance, exercises used)
- FADIR test result before any surgical decision
Missed FAI leading to failed athletic pubalgia surgery is a recurring source of poor outcomes and medicolegal claims worldwide.
Controversies & Areas of Uncertainty
Surgery vs continued rehabilitation
No high-quality RCTs directly compare surgical repair with continued conservative management beyond 12 weeks. Surgical evidence comes from large case series with inherent selection bias. The threshold for surgery varies between centres, with some advocating earlier intervention in elite athletes and others insisting on a minimum 6-month rehabilitation trial.
Laparoscopic vs open repair
Both techniques report 85-95% return-to-sport rates, but no head-to-head RCTs exist. Laparoscopic repair is preferred by general surgeons (mesh reinforcement of posterior wall), while open repair is preferred by some sports hernia specialists (direct aponeurotic reinforcement). Choice is currently driven by surgeon expertise rather than evidence.
Adductor release: partial vs complete
Partial adductor longus release is increasingly favoured over complete tenotomy to minimise post-operative adductor weakness. However, no comparative trials exist, and the long-term functional impact of complete tenotomy in elite athletes remains debated.
Terminology and classification
The terms "sports hernia," "athletic pubalgia," "core muscle injury," and "inguinal disruption" are used interchangeably, creating confusion. The Doha Agreement (2014) attempted to standardise terminology, but adoption is inconsistent. "Core muscle injury" is increasingly preferred as it accurately describes the pathology without implying a hernia.
ATHLETIC PUBALGIA (SPORTS HERNIA)
Clinical summary
Key Concept
- •Athletic pubalgia = core muscle injury (NOT a true hernia)
- •Tear or attenuation of rectus abdominis–adductor longus aponeurosis at pubis
- •Repetitive shear forces from twisting, kicking, sprinting in athletes
- •Male predominance (10:1), peak age 20-35, kicking and cutting sports
Diagnosis
- •MRI pelvis is gold standard — look for rectus tear, secondary cleft sign, adductor tendinopathy
- •No palpable inguinal hernia on examination
- •Resisted sit-up reproduces pain (rectus involvement)
- •Must exclude FAI with FADIR test and hip MRI if positive
Differential Diagnosis
- •Osteitis pubis: bilateral, symphysis tenderness, bone marrow oedema — NOT surgical
- •FAI: positive FADIR, limited internal rotation, hip MRI changes
- •True inguinal hernia: palpable lump on examination
- •Adductor strain: acute onset, musculotendinous junction tenderness
Management
- •First line: structured rehabilitation 6-12 weeks (Copenhagen programme plus core stabilisation)
- •Surgery for refractory cases: laparoscopic mesh or open repair, 85-95% return to sport
- •Address concurrent hip pathology BEFORE pubic surgery
- •Post-surgical rehabilitation: 6-8 weeks progressive return to sport
Key Exam Traps
- •Number one cause of failed surgery = missed FAI
- •Secondary cleft sign on MRI is the most specific finding
- •Osteitis pubis is managed conservatively — never operate for this
- •Up to 25% of athletes have both FAI and athletic pubalgia concurrently