Achilles Tendon Rupture Splint

Would you sleep in rain boots?

The world's only plantarflexion splint
Patented design
Designed with and loved by foot & ankle surgeons

Applicable to both conservative and surgical treatment

Thetis Achilles rupture night splint — plantarflexion for sleep

B2B · Fabricants & distributeurs

Attelle de nuit — rupture d'Achille

Dispositif médical marqué CE pour distribution et licence à l'international. Complète les bottes de marche — même angle 30°, ~90 % plus léger pour le sommeil.

2,000+

Splints sold per year
30°

Plantarflexion
~200g

Device weight
4

SKU variants

Patient need — sleep in the boot

In a survey of 195 patients with Achilles tendon rupture, sleep quality was a major unmet need during boot immobilisation.

77%

Reported sleep difficulty in the boot
35%

Took off or adjusted the boot at night

Didn't sleep well · 78 (40%)
Took off the boot · 51 (26%)
Used custom splint · 3 (2%)
Adjusted the boot at night · 18 (9%)
Slept fine · 45 (23%)

Thetis Medical patient survey (n=195, Achilles tendon rupture).

Growing market

National registries report rising incidence (about 8 → 42 per 100,000, 1994–2021), linked to active ageing and sport.

Large boot cohort in the first 12 weeks post-injury
Strong night-splint attach — boot sleep is a common pain point
Highest rates in Scandinavian and Western European data

Global incidence trends (interactive report)

Priority markets — incidence

Germany, France, Spain, Italy, Poland, and the Nordics are primary targets for national distribution. Incidence figures are from published registries and research in our global incidence report; where no national registry exists we show a conservative estimate.

Market	Incidence	Est. annual ruptures
Nordics (SE, DK, FI)	~35 / 100k	~7,700
Germany	~25 / 100k	~21k
France	~21 / 100k	~14.3k
Spain	~19 / 100k	~9,120
Italy	~20 / 100k	~11.8k
Poland	~16 / 100k	~6,270

Annual ruptures ≈ population × incidence per 100,000 (midpoint where a range is shown). Incidence from published registries; Spain, Italy, and Poland estimated where no national rupture registry is in our dataset.

Pricing & commercial terms

Reference price points from our current channels. Full wholesale price lists are shared after partner qualification.

Patient retail (RRP)

Typical consumer list price in target EU markets (Amazon / clinic): €79.99 in Germany, France, Spain, Italy, and the Nordics; 349 zł in Poland (~€80 equivalent).

Hospital / NHS supply

£28–£60 per unit — historic range we have sold to NHS hospitals and trusts, depending on volume and contract terms.

Distributor margin

Gross margin vs local patient RRP on standard wholesale for qualified partners. Volume and exclusivity affect buy price; price lists after qualification.

~50%

gross margin vs local RRP

Manufacture under licence

License Thetis IP for in-region production (see intellectual property) — lower landed cost, stronger margins, and shorter lead times than import-only. Regulatory, quality, and brand support included.

Parcours clinique — complète votre ligne de bottes

Le jour, les patients portent une botte de marche (ex. VACOped, Aircast). L'attelle Thetis est pour la nuit et le repos — pas un remplacement de la botte.

Jour

Botte de marche — mobilisation & protection

Nuit / repos

Attelle Thetis — sommeil, hygiène, observance

Aligné avec les protocoles de mise en charge précoce lorsque l'équipe autorise l'attelle de nuit avec la botte.

Athletes

“Lighter at home than the boot — even used it in the pool”
After my Achilles rupture, I used the Thetis splint when I was home instead of wearing the heavy boot all the time. It made recovery easier, feeling a little more normal, while keeping the tendon safe. Also later I used it while swimming as it's light and easy in the water.

Holger Rune

Professional Tennis Player

“The Thetis splint was an absolute saviour”
After my Achilles tendon rupture surgery, I was advised by a specialist to invest in a Thetis splint as the best product to use as part of my recovery. The difference between sleeping in a big bulky boot and the Thetis splint was an absolute saviour. It made sleeping at night so much better and easier, and helped with my recovery as I was fresh because of better sleep. It kept my foot at the right angle and was light enough that I didn't notice it while asleep! I would and have recommended this product to my other teammates who have ruptured their Achilles tendon!

Steff Evans

Welsh Rugby Union Player

“Great for physio and a game changer for sleep!”
The Thetis splint was really helpful for staying safe when doing my rehab exercises. I've also been sleeping in it since I came out the cast which has been an absolute game changer.

Ollie Lawrence

English Rugby Union Player

“Revolutionary splint - comfortable sleep with no fear of injury”
I recently began using the Thetis Splint overnight. My regular boot is good for daily use but very heavy and uncomfortable to sleep in - the splint has been revolutionary for me! It keeps my foot perfectly in place but without being bulky, meaning I can sleep more comfortably with no fear of hurting my Achilles tendon. I would highly recommend everyone and anyone to use this product during your recovery from Achilles rupture.

Andrew Lawrence

Team GB Basketball

“Slimmer, lightweight, and allows free movement while protecting the tendon”
The Thetis Splint is a lot slimmer and far more lightweight than the orthopaedic boot I was sleeping in. It allows me to move my leg more freely but still stops me from flexing my toes beyond a certain point, which is ideal whilst the tendon heals. The splint even comes in my favourite colour, so I was sold the minute I saw it!

Olivia Blatch

Team GB Weightlifter

“Simple design that allows better sleep and wound breathing”
The Thetis Splint has a simple design that is perfectly fit for purpose. It has allowed me to get the sleep that is so vital as I recovered from achilles tendon rupture and surgery whilst also feeling secure and protected. Apart from being less bulky than the orthopaedic boot, it also gives the surgical wounds a chance to breath and has made the recovery period a lot more bearable. I would highly recommend this product!

Kim Daybell

Team GB Table Tennis and Doctor

Product summary

Thetis Medical Achilles Rupture Splint (night splint). Designed specifically for complete Achilles tendon rupture — not general ankle instability or tendinopathy.

Maintains ~30° plantarflexion for tendon protection
~200g — approximately 90% lighter than a walking boot
Open design — breathability and hygiene vs sleeping in a boot
Quick application — adjustable straps, left/right and two sizes
Used by hospitals, foot & ankle centres, and distributors internationally

Patients

“Excellent service and delivery”
Excellent service and delivery. Loved the recovery tips. Love how this company has attention to detail, and looks after you.

Verified customer

“Total game changer for sleeping while recovering!”
Finally got the restful sleep I needed. The cast and heavy dirty boot made sleep tough. If you're recovering from an achilles rupture buy this immediately.

Verified customer

“It literally takes a few secs to put on and remove. Its comfortable as well. Highly recommend.”
Works great to keep the achilles tendon in relaxed state when recovering from a achilles injury or post-op. It literally takes a few secs to put on and remove. I've been using it for a couple of weeks now and its working well. I take my boots off for the night and wear this while sleeping. Its comfortable as well. Highly recommend if you are in the recovery stage of an achilles rupture post-op and out of the cast.

Verified customer

“Life Saver!”
This worked great and kept me from having to wear my big clunky walking boot to bed! So glad I found this. I couldn't sleep with that walking boot at night!! Great product.

Verified customer

“Eine absolute Erleichterung!”
Nach der OP an der Achillessehne war diese Schiene eine Erleichterung in der Nacht! Würde ich auf alle Fälle empfehlen wenn man wieder durchschlafen möchte!

Verified customer

“Superb”
Really useful after my dreadful Achilles tendon tear when I didn't want to wear the boot in bed!

Verified customer

“This is a saviour for night time wearing. So much easier than the big boot. Five weeks down and another five or six to go. Would have struggled with the full boot.”
This is a saviour for night time wearing. So much easier than the big boot. You need to be careful of getting up. I started using a crutch initially but as confidence grew just tried to ensure that I was careful. Five weeks down and another five or six to go. Would have struggled with the full boot.

Verified customer

“Peace of mind for Achilles injuries”
A great alternative to wearing the walking boot to bed, without worrying about inadvertently straightening or knocking your foot.

Verified customer

“Wonderful device and splendid service”
Brilliant device. Arrived the day after it was ordered. Delighted in all respects.

Verified customer

“Well designed product.”
This product is well designed. It gives good protection to injured Achilles' tendon whilst sleeping. Allows much better sleep compared to the pressure boot.

Verified customer

“Works well for sleeping and is definitely better than sleeping in the boot.”
I have the largest left splint, it works well for sleeping and is definitely better than sleeping in the boot — but your sizes are insane and there's no way it would ever fit properly. If I was based in the UK I'd have prob sent it back for being too small. There needs to be an XL at least. Anyway, keep up the good work.

Verified customer

“”

Verified customer

Indications & contraindications

Intended use

Achilles tendon rupture (complete tear)
Surgical or conservative (non-operative) treatment pathways
Within 12 weeks of injury or surgery
Night-time and rest immobilisation alongside walking boot care

Not intended for

Achilles tendinitis or tendinopathy alone

Clinical evidence & NHS pathways

Our products are supported by clinical quality improvement work and real-world safety data — summarised on our public evidence page.

UK public healthcare — A&E and acute pathways

In UK NHS settings, the Achilles rupture splint is used in emergency and acute pathways to maintain plantarflexion while patients move from A&E to specialist review — reducing reliance on plaster rooms and speeding the pathway to a definitive boot and treatment plan. In other deployments it is supplied alongside our patient recovery course and educational materials (companion to the printed recovery guide where hospitals use it).

Time from A&E to specialist assessment

Plaster cast

Average wait time 8.7 days

Maximum wait time 23 days

Thetis splint

Average wait time 2.9 days

Maximum wait time 6 days

67% faster assessment

Mean wait 8.7 → 2.9 days

74% shorter maximum waits

Max wait 23 → 6 days

Night-time safety vs walking boot

Recovery-period safety assessment across 5,000+ patients recorded: with 95% confidence, risk of injury while using the Thetis splint at night is less than 0.1% — comparable protection to a walking boot with substantially better comfort for sleep (see Sleeping safe and sound, BOFAS 2024). Patient experience and satisfaction in recovery is reported separately in Mother Knows Best (BOFAS 2023).

Patient wearing the Achilles rupture night splint in bed

5,000+

patients recorded

Zero

reported injuries

Safety statistical analysis

Sample size adequacy 99.9%

Statistical power 99.7%

Confidence level 95%

With 95% confidence, night-time injury risk is <0.1% — comparable to a walking boot with better sleep comfort.

Source: Sleeping safe and sound — BOFAS 2024. No difference in complication rates or functional outcomes vs control; 95% CI injury risk with splint at night less than 0.1%.

Published sources

A&E pathway QIP (EFORT 2023)

PDF EFORT 2023
Sleeping safe and sound (BOFAS 2024)

PDF
Mother Knows Best (BOFAS 2023)

PDF

Full evidence & studies

Clinicians

“Quand je me suis déchiré le tendon d'Achille, le plus difficile a été de porter la botte d'hôpital au lit. Cette attelle améliorera certainement l'expérience de récupération pour les patients.”
Quand je me suis déchiré le tendon d'Achille, la partie la plus difficile de la récupération a été de devoir porter la botte d'hôpital au lit la nuit pendant de nombreuses semaines. Ma seule option était de me fabriquer une attelle avec des matériaux de plâtre et des sangles de fortune. C'est fantastique que Thetis Medical ait produit cette attelle de nuit. Elle améliorera certainement l'expérience de récupération pour les patients.

Mr James Davis

Ancien président de la British Orthopaedic Foot and Ankle Society

“Un changement de donne dans ma pratique. La conception de l'attelle privilégie à la fois le confort et la fonctionnalité, permettant une récupération contrôlée et progressive.”
En tant que spécialiste du pied et de la cheville, je suis toujours à la recherche d'outils innovants susceptibles d'améliorer les résultats pour les patients. L'attelle de réparation d'Achille de Thetis Medical s'est avérée changer la donne dans ma pratique. Elle est vraiment unique, étant la seule attelle de ce type sur le marché, et je l'ai utilisée avec beaucoup de succès dans la rééducation de mes patients après des ruptures du tendon d'Achille. La conception de l'attelle privilégie à la fois le confort et la fonctionnalité, permettant une récupération contrôlée et progressive. Mes patients signalent constamment une réduction de l'inconfort et un meilleur sommeil, car ils apprécient vraiment le retrait accéléré de l'immobilisation la nuit. Les caractéristiques réglables permettent un ajustement personnalisé, ce qui est essentiel pour s'adapter à la forme anatomique spécifique de la jambe de chaque patient. J'ai trouvé l'attelle Thetis particulièrement efficace pour combler le fossé entre l'immobilisation et la récupération active. Elle fournit le soutien nécessaire pour permettre un retrait précoce de l'immobilisation la nuit, aidant à réduire les complications des mouvements incontrôlés et à accélérer la guérison. Sa durabilité et sa facilité d'utilisation en font également un choix pratique pour les patients et les cliniciens. Je recommande vivement l'attelle de réparation d'Achille de Thetis Medical à mes collègues et à mes patients. Elle est devenue un élément indispensable de mon protocole de traitement, et je suis convaincu qu'elle continuera à établir une nouvelle norme en matière de rééducation du tendon d'Achille.