Could my shoulder catching and clicking be a cartilage problem?

A shoulder can be “noisy” for years — a click during a press-up, a pop on an overhead serve, or a faint grind when reaching behind to put on a coat — and still be mainly a tendon-and-load problem rather than joint-surface damage. Cartilage becomes a more realistic line of thinking when the sensation is a true brief “catch” (a momentary block or jerk) paired with pain that feels deep in the joint, rather than a superficial muscle ache.

To keep the decision practical, the key symptom signature is summarised once here (rather than repeated throughout):

• Mechanical episodes: a distinct catch, clunk, or “grating”/crepitus with rotation or elevation.
• Deep, activity-linked pain: often described as deep anterior or posterior pain during loading (gym pressing, contact sport, heavy lifting), and in some cases night pain that wakes people.
• Swelling/stiffness or loss of movement, particularly after a clear trigger such as a fall, dislocation, or previous shoulder surgery.

In a 2012 review of glenohumeral cartilage defects, DePalma and colleagues note that patients “typically” report non-specific pain, swelling, catching, and clicking, often with a history of trauma or prior surgical intervention — a pattern that is characteristic, but not diagnostic on its own (because several intra-articular problems can feel similar). In the same vein, sports-medicine guidance describes symptoms tending to appear as defects progress, including stiffness, activity-related pain, popping/clicking, and difficulty lying on the affected side.

Pain quality can still add a useful clue: a shoulder-surgery review of chondral defects describes deep anterior and/or posterior pain that increases with activity and often awakens patients at night, which fits an intra-articular pain generator (cartilage, labrum, or synovial lining) more than a purely surface tendon problem.

At the severe end, glenohumeral chondrolysis illustrates how cartilage loss can present: Radsource describes patients (often younger) presenting within 12 months of a surgical intervention or other insult with rapidly progressive pain, marked loss of range, crepitus, and mechanical catching, sometimes with pain “out of proportion” to examination.

Rotator cuff tendons, bursitis, and labral tears can all cause clicking, catching sensations, and night pain, so symptoms rarely prove cartilage damage by themselves — but this combination is enough to justify a structured assessment that keeps cartilage on the shortlist rather than assuming it is “just a noisy joint”.

How common are focal shoulder cartilage defects in active adults?

Prevalence figures for focal glenohumeral cartilage defects mainly come from two places: arthroscopy series (people already heading for surgery) and advanced imaging cohorts (people selected for specialist scans). Framing the numbers this way — as context rather than a simple yes/no “how common?” — helps reduce over-interpretation: these lesions are not vanishingly rare, but they are also not automatically the main driver of someone’s shoulder pain.

In DePalma’s 2012 review of glenohumeral cartilage defects, symptomatic chondral lesions are reported in about 5%–17% of shoulders assessed arthroscopically, and they are often linked with trauma, recurrent instability, or prior surgery. A key practical detail is that many lesions are found incidentally when the surgeon is in the joint for a different problem (for example, a rotator cuff or labral procedure), which is one reason cartilage damage can sit in the background unless the joint surface is inspected deliberately and documented.

A similar “coexisting problem” pattern appears in outcome data. In a retrospective cohort of 281 shoulders undergoing arthroscopic rotator cuff repair, 90 shoulders (32%) had concomitant glenohumeral chondral lesions. Even with that rate — roughly one in three — overall patient-reported improvements after cuff repair were not markedly worse than in shoulders without cartilage lesions, although bipolar lesions (both sides of the joint) showed somewhat less improvement than unipolar lesions. This is a useful reminder that a cartilage finding can be clinically real without being the dominant pain generator, and that lesion pattern (unipolar versus bipolar) may matter as much as the headline prevalence.

Imaging cohorts reinforce why shoulder cartilage damage is often under-recognised in everyday “impingement-type” presentations. An MR arthrography series reported glenohumeral cartilage lesions in up to one-third of patients referred with subacromial impingement syndrome, implying that cartilage changes commonly sit alongside more familiar diagnoses and may not be the first thing clinicians focus on.

In young athletes, a textbook chapter describes localised glenohumeral cartilage lesions as relatively rare and often tolerated — but also notes that, once symptomatic, they can be markedly painful and limiting in high-demand shoulders. Taken together, the evidence points towards a nuanced conclusion: cartilage lesions are frequent enough to merit active consideration, but their significance depends on fit with the clinical picture and on features such as extent and whether the lesion is bipolar.

What actually happens to damaged shoulder cartilage over time?

Damage to the glenohumeral cartilage usually starts in one of two ways: a single acute event or a slower repetitive overload pattern. In a systematic review of post‑traumatic glenohumeral cartilage lesions, acute injury is described as compression or shearing of the humeral head cartilage during episodes such as subluxation or dislocation, whereas chronic injury is framed as overuse-related degeneration that often sits alongside other shoulder problems such as rotator cuff pathology, impingement, or instability. In both settings, the concern is that a local “scuff” can become a focal defect that alters contact mechanics and may contribute to longer-term degenerative change.

A practical way to picture the natural history is as a variable timeline, not a fixed script. For example, after a first-time dislocation, a contained cartilage injury may initially be overshadowed by pain from soft tissues; as training and overhead work resume over the next 3–6 months, the joint may tolerate some loads but feel unreliable under certain positions (particularly if instability persists). Over 12–24 months, some defects appear to remain relatively stable, while others may enlarge, expose subchondral bone, and start to behave more like early osteoarthritis—especially if the shoulder continues to experience recurrent micro-instability or high-demand loading. The post‑traumatic review explicitly advises that any cartilage damage should be taken seriously because both acute and chronic mechanisms may feed into the development of shoulder osteoarthritis over time.

Clinical guidance aimed at sports and active patients also flags progression as a realistic risk: untreated focal defects are described as likely to progress to osteoarthritis over time, and they commonly coexist with conditions that keep stressing the joint surface, including instability events, labral tears, and rotator cuff tears. This coexistence matters because an otherwise “successful” rehab for a labrum or cuff problem can still leave a cartilage lesion as the remaining pain driver in certain cases.

A rare but important cautionary pattern: chondrolysis

Chondrolysis sits at the extreme end of cartilage vulnerability. Radsource describes glenohumeral chondrolysis as an uncommon but devastating pattern of rapid, diffuse cartilage loss, with patients often presenting within 12 months of a surgical intervention or other insult. Reported associations include intra‑articular hardware (pins, screws, anchors), thermal devices, and intra‑articular pain‑pump infusions. Although rare, it underlines a broader point: shoulder cartilage can deteriorate quickly when the joint environment is unfavourable, so persistent mechanical symptoms after a clear trigger (notably surgery) warrant timely specialist review rather than indefinite “wait and see”.

How do specialists check if cartilage is the real pain source?

A cartilage-focused review tends to work best as a stepwise pathway (history → examination → imaging →, rarely, arthroscopy) rather than a series of yes/no questions. The aim is to decide whether the symptoms behave like a deep, intra‑articular problem (joint surface, labrum, loose bodies) or a more superficial tendon-and-load pattern, and what test is most likely to change the plan.

History that narrows the possibilities

The history usually starts with a concrete trigger: a dislocation/subluxation, a traction injury, or a clear change after previous shoulder surgery (for example, persistent catching that began in the months after a stabilisation procedure). Mechanical symptoms are unpacked in practical detail: what “catching” means (a momentary block versus a clunk), whether it happens in a repeatable arc such as mid‑range abduction, and whether pain feels deep anterior or deep posterior and is consistently activity-related. Night disturbance is also noted, because some descriptions of chondral pathology emphasise pain that can wake patients at night rather than staying purely “exercise-only”.

Examination themes (what clinicians are trying to prove)

On examination, the first anchors are measurable: range of motion (including end‑range stiffness), strength patterns across the rotator cuff, and whether movement produces crepitus or a reproducible mechanical event. Provocative manoeuvres for instability and labral involvement are often used, not because they “rule in” cartilage, but because cartilage lesions frequently coexist with those problems and the treatment priorities can change if instability is driving repeated shear. A key discriminator is whether the pain seems to sit inside the joint (deep, hard-to-localise, sometimes with catching) versus being more clearly on the surface (for example, focal tenderness over the cuff or biceps region).

A consultation often ends with one of a few concrete working conclusions:

• symptoms fit better with an intra‑articular source, so imaging is targeted at the joint surface and labrum
• symptoms fit better with a tendon-led problem, so management focuses on load, strength and scapular control first
• symptoms are mixed or disproportionate, so the priority becomes clarifying coexisting pathology before committing to a pathway

Imaging: what each test can and cannot show

Plain X‑rays remain useful to exclude fracture and to identify established arthritis (for example, joint‑space narrowing and osteophytes), but they cannot directly visualise early or focal cartilage defects; they tend to change only once disease is more advanced (DePalma’s review discusses this limitation). MRI can demonstrate cartilage thinning/irregularity and other intra‑articular pathology, yet small focal defects may be missed or graded as less severe than they are at direct inspection (also highlighted in DePalma’s review).

Where the diagnostic question is specifically “is there an intra‑articular lesion that explains catching/deep pain?”, MR arthrography is sometimes used. One imaging cohort reported glenohumeral cartilage lesions in up to one‑third of patients referred for MR arthrography for subacromial impingement-type presentations; clinically, that kind of finding changes the logic from “impingement alone” to “impingement plus joint-surface disease may be present”, and can influence whether the next step is rehabilitation, injection support, or a surgical opinion.

Arthroscopy as confirmation (background, not the default)

Across clinical sources, shoulder arthroscopy is still described as the most reliable way to assess and grade articular cartilage directly, but it is an invasive, theatre-based procedure used when there is a clear treatment question rather than as a first-line diagnostic tool (DePalma’s review; sports-medicine guidance also makes this point). In pathways centred on image-guided, outpatient cartilage treatments, the practical emphasis is therefore on aligning the story, examination and imaging—recognising that scans contribute important evidence, but do not diagnose “painful cartilage” on their own.

What are the treatment options, and where does Liquid Cartilage fit?

Treatment for a focal shoulder cartilage defect is easiest to hold in mind as a pathway rather than a menu: start with joint-load control, add symptom-modifying support when needed, and only then consider joint-surface restoration procedures (with replacement reserved for more diffuse arthritis). To keep this section neutral, the pathway comes first; brand names sit at the end because they only matter once the stage of care is clear.

1) Conservative care (the usual starting point)

In day-to-day practice, first-line care commonly focuses on reducing aggravating loads (for example repeated overhead work or heavy pressing), then rebuilding capacity through structured physiotherapy aimed at rotator cuff strength and scapular control. Short-term pain relief may also be used to enable movement and sleep, especially during flare-ups, while avoiding the trap of treating a mechanical problem with rest alone.

2) Injection options that mainly modulate pain and inflammation

When symptoms persist despite a period of rehabilitation, clinicians sometimes discuss injections such as corticosteroid, hyaluronic acid, or platelet-rich plasma (PRP). In general terms, these are used to settle pain and irritability and may help someone engage with rehabilitation, but they are not usually positioned as directly “rebuilding” a focal cartilage defect in the way restorative surgery aims to.

3) Surgical joint-preservation options for focal defects (theatre-based)

Shoulder-specific reviews describe several operative approaches for active adults when simpler measures have not been enough (DePalma’s 2012 review is a commonly cited summary). A practical way to group them is by what problem they are trying to solve rather than by acronyms:

• “Clean-up” procedures: arthroscopic debridement/chondroplasty and removal of loose bodies, aiming to reduce mechanical symptoms in selected cases.
• “Stimulate repair” procedures: microfracture or other marrow-stimulation techniques, used to encourage a fibrocartilage-type repair response in contained full-thickness lesions.
• “Replace/restore the surface” procedures: osteochondral autograft/allograft transplantation and autologous chondrocyte implantation (ACI), generally discussed for larger or more symptomatic focal defects in higher-demand patients.
• “Bridge/space” solutions: interpositional arthroplasty approaches are described in the literature as options in particular situations short of replacement.
• Newer one-stage concepts: minced cartilage techniques have been described as an arthroscopic, single-step method in which cartilage chips are implanted into the defect, with joint preservation emphasised for patients who are not in the “elderly, low-demand” arthroplasty group.

Across these options, shoulder chapters aimed at athletes underline a recurring limitation: evidence is often based on small series, case reports, and extrapolation from knee cartilage practice, so long-term durability and best-fit indications can be uncertain for the shoulder in particular.

4) Why lesion pattern matters (a concrete example)

Technical reports make clear that an isolated, full-thickness humeral head lesion can be a direct generator of pain and mechanical symptoms, and they outline a step-up logic: marrow-stimulation techniques may improve symptoms in some cases, while fresh osteochondral allograft transplantation is presented as a consideration when the subchondral bone is involved and the defect is contained.

Where Liquid Cartilage fits (kept in proportion)

Liquid Cartilage (ChondroFiller) sits conceptually in the “biologic/injection support” stage: an image-guided, outpatient injectable collagen scaffold intended to fill a contained defect and provide a structure for the body’s repair response, rather than a theatre-based resurfacing operation. As with other shoulder cartilage treatments, the key practical question is fit: focal, contained defects are a different problem from diffuse arthritis, and the shoulder’s evidence base remains narrower than for the knee.

In the UK, Liquid Cartilage is delivered at the London Cartilage Clinic on Harley Street; assessment booking is via londoncartilage.com.

When should I seek a cartilage-focused opinion in London?

Escalation tends to make sense when day‑to‑day symptoms start behaving like a reproducible joint-surface problem rather than a short-lived tendon flare. To keep the close practical rather than clinic-led, the decision logic is summarised below as a short “when to escalate” checklist that applies whether the next step is via an NHS pathway, a sports physician, or a shoulder surgeon (cartilage symptoms are often described as non‑specific, including pain, swelling and mechanical catching/clicking).

Persistence and pattern flags commonly used to justify a cartilage‑focused opinion include:

• Mechanical catching/clicking plus deep pain that is still limiting function after ~3 months of well‑run physiotherapy and sensible load reduction (some guidance notes symptoms may be minimal early on and become clearer as lesions progress, with stiffness/swelling and popping/clicking).
• A clear history of dislocation/instability or previous shoulder surgery followed by ongoing catching or “something moving” sensations (cartilage lesions are often described in the context of trauma or prior intervention).
• Night pain that reliably wakes someone (described in surgical reviews as a feature that can accompany deep anterior/posterior chondral pain).
• A noticeable drop in confidence for overhead sport or overhead work (for example serving, throwing, roofing, repetitive lifting), especially if symptoms are consistent in the same arc of movement.
• A rapid deterioration in pain and movement after an operation, particularly if symptoms escalate within 12 months and include crepitus/catching (a pattern described in glenohumeral chondrolysis, an uncommon but severe, rapid cartilage-loss scenario).

Imaging and symptoms do not always match neatly. Cartilage change reported as “mild” on MRI may still matter if the story is consistently mechanical and function‑limiting; equally, a scan mention of “cartilage wear” does not automatically explain pain if day‑to‑day function is improving. In practice, the decision to escalate is usually anchored to function over time (for example, whether sleep, work tasks, or training loads have genuinely improved over 6–12 weeks), rather than a single line in a radiology report.

A specialist cartilage clinic assessment typically pulls together four things in one appointment: a detailed timeline (including any dislocation, injection, or surgery date), a targeted examination for range of motion and strength patterns, a structured review of prior X‑ray/MRI/MR arthrogram reports and images, and a plan that shows where the case sits on the full pathway (conservative care → symptom‑modifying injections → restorative surgery when appropriate). Return to sport is usually framed as criteria‑based progression—settling pain and irritability, restoring range, rebuilding strength symmetry, then a graded return to overhead and impact tasks—rather than a fixed number of weeks.

In London, the London Cartilage Clinic on Harley Street is the UK certified delivery centre for Liquid Cartilage™ (ChondroFiller™) and assesses focal cartilage problems across joints (including the shoulder) within a cartilage‑regeneration framework; the same clinic can also support conservative and surgical decision‑making when injection treatment is not the right fit.

The concrete takeaway is a three‑part escalation test: (1) a persistent mechanical pattern beyond roughly 3 months, (2) a relevant trigger such as instability or prior surgery, and (3) a measurable impact on sleep, work, or sport that has not shifted over 6–12 weeks—a combination that is harder to explain away as “just a noisy shoulder.”

1. [1] Minced Cartilage Procedure for One-Stage Arthroscopic Repair of Chondral Defects at the Glenohumeral Joint. (2021). https://doi.org/10.1016/j.eats.2021.03.012 https://doi.org/10.1016/j.eats.2021.03.012